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From scolebou...@apache.org
Subject cvs commit: jakarta-commons/lang/src/test/org/apache/commons/lang NumberUtilsTest.java
Date Tue, 24 Jun 2003 21:14:51 GMT
scolebourne    2003/06/24 14:14:51

  Modified:    lang/src/java/org/apache/commons/lang/math Range.java
               lang/src/java/org/apache/commons/lang/builder
                        CompareToBuilder.java
               lang/src/java/org/apache/commons/lang BooleanUtils.java
                        NumberUtils.java StringUtils.java
               lang/src/test/org/apache/commons/lang/math
                        MathTestSuite.java
               lang/src/test/org/apache/commons/lang NumberUtilsTest.java
  Added:       lang/src/java/org/apache/commons/lang/math NumberUtils.java
               lang/src/test/org/apache/commons/lang/math
                        NumberUtilsTest.java
  Log:
  NumberUtils moved to math subpackage
  
  Revision  Changes    Path
  1.3       +1 -3      jakarta-commons/lang/src/java/org/apache/commons/lang/math/Range.java
  
  Index: Range.java
  ===================================================================
  RCS file: /home/cvs/jakarta-commons/lang/src/java/org/apache/commons/lang/math/Range.java,v
  retrieving revision 1.2
  retrieving revision 1.3
  diff -u -r1.2 -r1.3
  --- Range.java	23 Mar 2003 17:51:15 -0000	1.2
  +++ Range.java	24 Jun 2003 21:14:50 -0000	1.3
  @@ -53,8 +53,6 @@
    */
   package org.apache.commons.lang.math;
   
  -import org.apache.commons.lang.NumberUtils;
  -
   /**
    * <p><code>Range</code> represents a range of numbers of the same type.</p>
    * 
  
  
  
  1.1                  jakarta-commons/lang/src/java/org/apache/commons/lang/math/NumberUtils.java
  
  Index: NumberUtils.java
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2002-2003 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Commons", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  package org.apache.commons.lang.math;
  
  import java.math.BigInteger;
  import java.math.BigDecimal;
  
  /**
   * <p>Provides extra functionality for Java Number classes.</p>
   *
   * @author <a href="mailto:bayard@generationjava.com">Henri Yandell</a>
   * @author <a href="mailto:rand_mcneely@yahoo.com">Rand McNeely</a>
   * @author Stephen Colebourne
   * @author <a href="mailto:steve.downey@netfolio.com">Steve Downey</a>
   * @author Eric Pugh
   * @author Phil Steitz
   * @since 1.0
   * @version $Id: NumberUtils.java,v 1.1 2003/06/24 21:14:50 scolebourne Exp $
   */
  public final class NumberUtils {
      
      /** Reusable Long constant for zero. */
      public static final Long LONG_ZERO = new Long(0L);
      /** Reusable Long constant for one. */
      public static final Long LONG_ONE = new Long(1L);
      /** Reusable Long constant for minus one. */
      public static final Long LONG_MINUS_ONE = new Long(-1L);
      /** Reusable Integer constant for zero. */
      public static final Integer INTEGER_ZERO = new Integer(0);
      /** Reusable Integer constant for one. */
      public static final Integer INTEGER_ONE = new Integer(1);
      /** Reusable Integer constant for minus one. */
      public static final Integer INTEGER_MINUS_ONE = new Integer(-1);
      /** Reusable Short constant for zero. */
      public static final Short SHORT_ZERO = new Short((short) 0);
      /** Reusable Short constant for one. */
      public static final Short SHORT_ONE = new Short((short) 1);
      /** Reusable Short constant for minus one. */
      public static final Short SHORT_MINUS_ONE = new Short((short) -1);
      /** Reusable Byte constant for zero. */
      public static final Byte BYTE_ZERO = new Byte((byte) 0);
      /** Reusable Byte constant for one. */
      public static final Byte BYTE_ONE = new Byte((byte) 1);
      /** Reusable Byte constant for minus one. */
      public static final Byte BYTE_MINUS_ONE = new Byte((byte) -1);
      /** Reusable Double constant for zero. */
      public static final Double DOUBLE_ZERO = new Double(0.0d);
      /** Reusable Double constant for one. */
      public static final Double DOUBLE_ONE = new Double(1.0d);
      /** Reusable Double constant for minus one. */
      public static final Double DOUBLE_MINUS_ONE = new Double(-1.0d);
      /** Reusable Float constant for zero. */
      public static final Float FLOAT_ZERO = new Float(0.0f);
      /** Reusable Float constant for one. */
      public static final Float FLOAT_ONE = new Float(1.0f);
      /** Reusable Float constant for minus one. */
      public static final Float FLOAT_MINUS_ONE = new Float(-1.0f);
  
      /**
       * <p><code>NumberUtils</code> instances should NOT be constructed in standard programming.
       * Instead, the class should be used as <code>NumberUtils.stringToInt("6");</code>.</p>
       *
       * <p>This constructor is public to permit tools that require a JavaBean instance
       * to operate.</p>
       */
      public NumberUtils() {
      }
  
      //-----------------------------------------------------------------------
      /**
       * <p>Convert a <code>String</code> to an <code>int</code>, returning
       * <code>zero</code> if the conversion fails.</p>
       * 
       * @param str  the string to convert
       * @return the int represented by the string, or <code>zero</code> if
       *  conversion fails
       */
      public static int stringToInt(String str) {
          return stringToInt(str, 0);
      }
  
      /**
       * <p>Convert a <code>String</code> to an <code>int</code>, returning a
       * default value if the conversion fails.</p>
       * 
       * @param str  the string to convert
       * @param defaultValue  the default value
       * @return the int represented by the string, or the default if conversion fails
       */
      public static int stringToInt(String str, int defaultValue) {
          try {
              return Integer.parseInt(str);
          } catch (NumberFormatException nfe) {
              return defaultValue;
          }
      }
  
      //-----------------------------------------------------------------------
      // must handle Long, Float, Integer, Float, Short,
      //                  BigDecimal, BigInteger and Byte
      // useful methods:
      // Byte.decode(String)
      // Byte.valueOf(String,int radix)
      // Byte.valueOf(String)
      // Double.valueOf(String)
      // Float.valueOf(String)
      // new Float(String)
      // Integer.valueOf(String,int radix)
      // Integer.valueOf(String)
      // Integer.decode(String)
      // Integer.getInteger(String)
      // Integer.getInteger(String,int val)
      // Integer.getInteger(String,Integer val)
      // new Integer(String)
      // new Double(String)
      // new Byte(String)
      // new Long(String)
      // Long.getLong(String)
      // Long.getLong(String,int)
      // Long.getLong(String,Integer)
      // Long.valueOf(String,int)
      // Long.valueOf(String)
      // new Short(String)
      // Short.decode(String)
      // Short.valueOf(String,int)
      // Short.valueOf(String)
      // new BigDecimal(String)
      // new BigInteger(String)
      // new BigInteger(String,int radix)
      // Possible inputs:
      // 45 45.5 45E7 4.5E7 Hex Oct Binary xxxF xxxD xxxf xxxd
      // plus minus everything. Prolly more. A lot are not separable.
  
      /**
       * <p>Turns a string value into a java.lang.Number.</p>
       *
       * <p>First, the value is examined for a type qualifier on the end
       * (<code>'f','F','d','D','l','L'</code>).  If it is found, it starts 
       * trying to create succissively larger types from the type specified
       * until one is found that can hold the value.</p>
       *
       * <p>If a type specifier is not found, it will check for a decimal point
       * and then try successively larger types from <code>Integer</code> to
       * <code>BigInteger</code> and from <code>Float</code> to
       * <code>BigDecimal</code>.</p>
       *
       * <p>If the string starts with <code>0x</code> or <code>-0x</code>, it
       * will be interpreted as a hexadecimal integer.  Values with leading
       * <code>0</code>'s will not be interpreted as octal.</p>
       *
       * @param val String containing a number
       * @return Number created from the string
       * @throws NumberFormatException if the value cannot be converted
       */
      public static Number createNumber(String val) throws NumberFormatException {
          if (val == null) {
              return null;
          }
          if (val.length() == 0) {
              throw new NumberFormatException("\"\" is not a valid number.");
          }
          if (val.startsWith("--")) {
              // this is protection for poorness in java.lang.BigDecimal.
              // it accepts this as a legal value, but it does not appear 
              // to be in specification of class. OS X Java parses it to 
              // a wrong value.
              return null;
          }
          if (val.startsWith("0x") || val.startsWith("-0x")) {
              return createInteger(val);
          }   
          char lastChar = val.charAt(val.length() - 1);
          String mant;
          String dec;
          String exp;
          int decPos = val.indexOf('.');
          int expPos = val.indexOf('e') + val.indexOf('E') + 1;
  
          if (decPos > -1) {
  
              if (expPos > -1) {
                  if (expPos < decPos) {
                      throw new NumberFormatException(val + " is not a valid number.");
                  }
                  dec = val.substring(decPos + 1, expPos);
              } else {
                  dec = val.substring(decPos + 1);
              }
              mant = val.substring(0, decPos);
          } else {
              if (expPos > -1) {
                  mant = val.substring(0, expPos);
              } else {
                  mant = val;
              }
              dec = null;
          }
          if (!Character.isDigit(lastChar)) {
              if (expPos > -1 && expPos < val.length() - 1) {
                  exp = val.substring(expPos + 1, val.length() - 1);
              } else {
                  exp = null;
              }
              //Requesting a specific type..
              String numeric = val.substring(0, val.length() - 1);
              boolean allZeros = isAllZeros(mant) && isAllZeros(exp);
              switch (lastChar) {
                  case 'l' :
                  case 'L' :
                      if (dec == null
                          && exp == null
                          && isDigits(numeric.substring(1))
                          && (numeric.charAt(0) == '-' || Character.isDigit(numeric.charAt(0)))) {
                          try {
                              return createLong(numeric);
                          } catch (NumberFormatException nfe) {
                              //Too big for a long
                          }
                          return createBigInteger(numeric);
  
                      }
                      throw new NumberFormatException(val + " is not a valid number.");
                  case 'f' :
                  case 'F' :
                      try {
                          Float f = NumberUtils.createFloat(numeric);
                          if (!(f.isInfinite() || (f.floatValue() == 0.0F && !allZeros))) {
                              //If it's too big for a float or the float value = 0 and the string
                              //has non-zeros in it, then float doens't have the presision we want
                              return f;
                          }
  
                      } catch (NumberFormatException nfe) {
                      }
                      //Fall through
                  case 'd' :
                  case 'D' :
                      try {
                          Double d = NumberUtils.createDouble(numeric);
                          if (!(d.isInfinite() || (d.floatValue() == 0.0D && !allZeros))) {
                              return d;
                          }
                      } catch (NumberFormatException nfe) {
                      }
                      try {
                          return createBigDecimal(numeric);
                      } catch (NumberFormatException e) {
                      }
                      //Fall through
                  default :
                      throw new NumberFormatException(val + " is not a valid number.");
  
              }
          } else {
              //User doesn't have a preference on the return type, so let's start
              //small and go from there...
              if (expPos > -1 && expPos < val.length() - 1) {
                  exp = val.substring(expPos + 1, val.length());
              } else {
                  exp = null;
              }
              if (dec == null && exp == null) {
                  //Must be an int,long,bigint
                  try {
                      return createInteger(val);
                  } catch (NumberFormatException nfe) {
                  }
                  try {
                      return createLong(val);
                  } catch (NumberFormatException nfe) {
                  }
                  return createBigInteger(val);
  
              } else {
                  //Must be a float,double,BigDec
                  boolean allZeros = isAllZeros(mant) && isAllZeros(exp);
                  try {
                      Float f = createFloat(val);
                      if (!(f.isInfinite() || (f.floatValue() == 0.0F && !allZeros))) {
                          return f;
                      }
                  } catch (NumberFormatException nfe) {
                  }
                  try {
                      Double d = createDouble(val);
                      if (!(d.isInfinite() || (d.doubleValue() == 0.0D && !allZeros))) {
                          return d;
                      }
                  } catch (NumberFormatException nfe) {
                  }
  
                  return createBigDecimal(val);
  
              }
          }
      }
  
      /**
       * <p>Utility method for {@link #createNumber(java.lang.String)}.</p>
       *
       * <p>Returns <code>true</code> if s is <code>null</code>.</p>
       * 
       * @param s the String to check
       * @return if it is all zeros or <code>null</code>
       */
      private static boolean isAllZeros(String s) {
          if (s == null) {
              return true;
          }
          for (int i = s.length() - 1; i >= 0; i--) {
              if (s.charAt(i) != '0') {
                  return false;
              }
          }
          return s.length() > 0;
      }
  
      //-----------------------------------------------------------------------
      /**
       * <p>Convert a <code>String</code> to a <code>Float</code>.</p>
       * 
       * @param val  a <code>String</code> to convert
       * @return converted <code>Float</code>
       * @throws NumberFormatException if the value cannot be converted
       */
      public static Float createFloat(String val) {
          return Float.valueOf(val);
      }
  
      /**
       * <p>Convert a <code>String</code> to a <code>Double</code>.</p>
       * 
       * @param val  a <code>String</code> to convert
       * @return converted <code>Double</code>
       * @throws NumberFormatException if the value cannot be converted
       */
      public static Double createDouble(String val) {
          return Double.valueOf(val);
      }
  
      /**
       * <p>Convert a <code>String</code> to a <code>Integer</code>, handling
       * hex and octal notations.</p>
       * 
       * @param val  a <code>String</code> to convert
       * @return converted <code>Integer</code>
       * @throws NumberFormatException if the value cannot be converted
       */
      public static Integer createInteger(String val) {
          // decode() handles 0xAABD and 0777 (hex and octal) as well.
          return Integer.decode(val);
      }
  
      /**
       * <p>Convert a <code>String</code> to a <code>Long</code>.</p>
       * 
       * @param val  a <code>String</code> to convert
       * @return converted <code>Long</code>
       * @throws NumberFormatException if the value cannot be converted
       */
      public static Long createLong(String val) {
          return Long.valueOf(val);
      }
  
      /**
       * <p>Convert a <code>String</code> to a <code>BigInteger</code>.</p>
       * 
       * @param val  a <code>String</code> to convert
       * @return converted <code>BigInteger</code>
       * @throws NumberFormatException if the value cannot be converted
       */
      public static BigInteger createBigInteger(String val) {
          BigInteger bi = new BigInteger(val);
          return bi;
      }
  
      /**
       * <p>Convert a <code>String</code> to a <code>BigDecimal</code>.</p>
       * 
       * @param val  a <code>String</code> to convert
       * @return converted <code>BigDecimal</code>
       * @throws NumberFormatException if the value cannot be converted
       */
      public static BigDecimal createBigDecimal(String val) {
          BigDecimal bd = new BigDecimal(val);
          return bd;
      }
  
      //-----------------------------------------------------------------------
      /**
       * <p>Gets the minimum of three <code>long</code> values.</p>
       * 
       * @param a  value 1
       * @param b  value 2
       * @param c  value 3
       * @return  the smallest of the values
       */
      public static long min(long a, long b, long c) {
          if (b < a) {
              a = b;
          }
          if (c < a) {
              a = c;
          }
          return a;
      }
  
      /**
       * <p>Gets the minimum of three <code>int</code> values.</p>
       * 
       * @param a  value 1
       * @param b  value 2
       * @param c  value 3
       * @return  the smallest of the values
       */
      public static int min(int a, int b, int c) {
          if (b < a) {
              a = b;
          }
          if (c < a) {
              a = c;
          }
          return a;
      }
  
      /**
       * <p>Gets the minimum of three <code>short</code> values.</p>
       * 
       * @param a  value 1
       * @param b  value 2
       * @param c  value 3
       * @return  the smallest of the values
       */
      public static short min(short a, short b, short c) {
          if (b < a) {
              a = b;
          }
          if (c < a) {
              a = c;
          }
          return a;
      }
  
      /**
       * <p>Gets the minimum of three <code>byte</code> values.</p>
       * 
       * @param a  value 1
       * @param b  value 2
       * @param c  value 3
       * @return  the smallest of the values
       */
      public static byte min(byte a, byte b, byte c) {
          if (b < a) {
              a = b;
          }
          if (c < a) {
              a = c;
          }
          return a;
      }
  
      /**
       * <p>Gets the minimum of three <code>double</code> values.</p>
       * 
       * <p>If any value is NaN, NaN is returned. Infinity is handled.</p>
       * 
       * @param a  value 1
       * @param b  value 2
       * @param c  value 3
       * @return  the smallest of the values
       */
      public static double min(double a, double b, double c) {
          return Math.min(Math.min(a, b), c);
      }
  
      /**
       * <p>Gets the minimum of three <code>float</code> values.</p>
       * 
       * <p>If any value is NaN, NaN is returned. Infinity is handled.</p>
       * 
       * @param a  value 1
       * @param b  value 2
       * @param c  value 3
       * @return  the smallest of the values
       */
      public static float min(float a, float b, float c) {
          return Math.min(Math.min(a, b), c);
      }
  
      //-----------------------------------------------------------------------
      /**
       * <p>Gets the maximum of three <code>long</code> values.</p>
       * 
       * @param a  value 1
       * @param b  value 2
       * @param c  value 3
       * @return  the largest of the values
       */
      public static long max(long a, long b, long c) {
          if (b > a) {
              a = b;
          }
          if (c > a) {
              a = c;
          }
          return a;
      }
  
      /**
       * <p>Gets the maximum of three <code>int</code> values.</p>
       * 
       * @param a  value 1
       * @param b  value 2
       * @param c  value 3
       * @return  the largest of the values
       */
      public static int max(int a, int b, int c) {
          if (b > a) {
              a = b;
          }
          if (c > a) {
              a = c;
          }
          return a;
      }
  
      /**
       * <p>Gets the maximum of three <code>short</code> values.</p>
       * 
       * @param a  value 1
       * @param b  value 2
       * @param c  value 3
       * @return  the largest of the values
       */
      public static short max(short a, short b, short c) {
          if (b > a) {
              a = b;
          }
          if (c > a) {
              a = c;
          }
          return a;
      }
  
      /**
       * <p>Gets the maximum of three <code>byte</code> values.</p>
       * 
       * @param a  value 1
       * @param b  value 2
       * @param c  value 3
       * @return  the largest of the values
       */
      public static byte max(byte a, byte b, byte c) {
          if (b > a) {
              a = b;
          }
          if (c > a) {
              a = c;
          }
          return a;
      }
  
      /**
       * <p>Gets the maximum of three <code>double</code> values.</p>
       * 
       * <p>If any value is NaN, NaN is returned. Infinity is handled.</p>
       * 
       * @param a  value 1
       * @param b  value 2
       * @param c  value 3
       * @return  the largest of the values
       */
      public static double max(double a, double b, double c) {
          return Math.max(Math.max(a, b), c);
      }
  
      /**
       * <p>Gets the maximum of three <code>float</code> values.</p>
       * 
       * <p>If any value is NaN, NaN is returned. Infinity is handled.</p>
       * 
       * @param a  value 1
       * @param b  value 2
       * @param c  value 3
       * @return  the largest of the values
       */
      public static float max(float a, float b, float c) {
          return Math.max(Math.max(a, b), c);
      }
  
      //-----------------------------------------------------------------------
      /**
       * <p>Compares two <code>doubles</code> for order.</p>
       *
       * <p>This method is more comprehensive than the standard Java greater
       * than, less than and equals operators.</p>
       * <ul>
       *  <li>It returns <code>-1</code> if the first value is less than the second.
       *  <li>It returns <code>+1</code> if the first value is greater than the second.
       *  <li>It returns <code>0</code> if the values are equal.
       * </ul>
       *
       * <p>
       * The ordering is as follows, largest to smallest:
       * <ul>
       *  <li>NaN
       *  <li>Positive infinity
       *  <li>Maximum double
       *  <li>Normal positve numbers
       *  <li>+0.0
       *  <li>-0.0
       *  <li>Normal negative numbers
       *  <li>Minimum double (-Double.MAX_VALUE)
       *  <li>Negative infinity
       * </ul>
       * </p>
       *
       * <p>Comparing <code>NaN</code> with <code>NaN</code> will
       * return <code>0</code>.</p>
       * 
       * @param lhs  the first <code>double</code>
       * @param rhs  the second <code>double</code>
       * @return <code>-1</code> if lhs is less, <code>+1</code> if greater,
       *  <code>0</code> if equal to rhs
       */
      public static int compare(double lhs, double rhs) {
          if (lhs < rhs) {
              return -1;
          }
          if (lhs > rhs) {
              return +1;
          }
          // Need to compare bits to handle 0.0 == -0.0 being true
          // compare should put -0.0 < +0.0
          // Two NaNs are also == for compare purposes
          // where NaN == NaN is false
          long lhsBits = Double.doubleToLongBits(lhs);
          long rhsBits = Double.doubleToLongBits(rhs);
          if (lhsBits == rhsBits) {
              return 0;
          }
          // Something exotic! A comparison to NaN or 0.0 vs -0.0
          // Fortunately NaN's long is > than everything else
          // Also negzeros bits < poszero
          // NAN: 9221120237041090560
          // MAX: 9218868437227405311
          // NEGZERO: -9223372036854775808
          if (lhsBits < rhsBits) {
              return -1;
          } else {
              return +1;
          }
      }
      
      /**
       * <p>Compares two floats for order.</p>
       *
       * <p>This method is more comprhensive than the standard Java greater than,
       * less than and equals operators.</p>
       * <ul>
       *  <li>It returns <code>-1</code> if the first value is less than the second.
       *  <li>It returns <code>+1</code> if the first value is greater than the second.
       *  <li>It returns <code>0</code> if the values are equal.
       * </ul>
       *
       * <p> The ordering is as follows, largest to smallest:
       * <ul>
       * <li>NaN
       * <li>Positive infinity
       * <li>Maximum float
       * <li>Normal positve numbers
       * <li>+0.0
       * <li>-0.0
       * <li>Normal negative numbers
       * <li>Minimum float (-Float.MAX_VALUE)
       * <li>Negative infinity
       * </ul>
       *
       * <p>Comparing <code>NaN</code> with <code>NaN</code> will return
       * <code>0</code>.</p>
       * 
       * @param lhs  the first <code>float</code>
       * @param rhs  the second <code>float</code>
       * @return <code>-1</code> if lhs is less, <code>+1</code> if greater,
       *  <code>0</code> if equal to rhs
       */
      public static int compare(float lhs, float rhs) {
          if (lhs < rhs) {
              return -1;
          }
          if (lhs > rhs) {
              return +1;
          }
          //Need to compare bits to handle 0.0 == -0.0 being true
          // compare should put -0.0 < +0.0
          // Two NaNs are also == for compare purposes
          // where NaN == NaN is false
          int lhsBits = Float.floatToIntBits(lhs);
          int rhsBits = Float.floatToIntBits(rhs);
          if (lhsBits == rhsBits) {
              return 0;
          }
          //Something exotic! A comparison to NaN or 0.0 vs -0.0
          //Fortunately NaN's int is > than everything else
          //Also negzeros bits < poszero
          //NAN: 2143289344
          //MAX: 2139095039
          //NEGZERO: -2147483648
          if (lhsBits < rhsBits) {
              return -1;
          } else {
              return +1;
          }
      }
      
      //-----------------------------------------------------------------------
      /**
       * <p>Checks whether the <code>String</code> contains only
       * digit characters.</p>
       *
       * <p><code>Null</code> and empty String will return
       * <code>false</code>.</p>
       *
       * @param str  the <code>String</code> to check
       * @return <code>true</code> if str contains only unicode numeric
       */
      public static boolean isDigits(String str) {
          if ((str == null) || (str.length() == 0)) {
              return false;
          }
          for (int i = 0; i < str.length(); i++) {
              if (!Character.isDigit(str.charAt(i))) {
                  return false;
              }
          }
          return true;
      }
  
      /**
       * <p>Checks whether the String a valid Java number.</p>
       *
       * <p>Valid numbers include hexadecimal marked with the <code>0x</code>
       * qualifier, scientific notation and numbers marked with a type
       * qualifier (e.g. 123L).</p>
       *
       * <p><code>Null</code> and empty String will return
       * <code>false</code>.</p>
       *
       * @param str  the <code>String</code> to check
       * @return <code>true</code> if the string is a correctly formatted number
       */
      public static boolean isNumber(String str) {
          if ((str == null) || (str.length() == 0)) {
              return false;
          }
          char[] chars = str.toCharArray();
          int sz = chars.length;
          boolean hasExp = false;
          boolean hasDecPoint = false;
          boolean allowSigns = false;
          boolean foundDigit = false;
          // deal with any possible sign up front
          int start = (chars[0] == '-') ? 1 : 0;
          if (sz > start + 1) {
              if (chars[start] == '0' && chars[start + 1] == 'x') {
                  int i = start + 2;
                  if (i == sz) {
                      return false; // str == "0x"
                  }
                  // checking hex (it can't be anything else)
                  for (; i < chars.length; i++) {
                      if ((chars[i] < '0' || chars[i] > '9')
                          && (chars[i] < 'a' || chars[i] > 'f')
                          && (chars[i] < 'A' || chars[i] > 'F')) {
                          return false;
                      }
                  }
                  return true;
              }
          }
          sz--; // don't want to loop to the last char, check it afterwords
                // for type qualifiers
          int i = start;
          // loop to the next to last char or to the last char if we need another digit to
          // make a valid number (e.g. chars[0..5] = "1234E")
          while (i < sz || (i < sz + 1 && allowSigns && !foundDigit)) {
              if (chars[i] >= '0' && chars[i] <= '9') {
                  foundDigit = true;
                  allowSigns = false;
  
              } else if (chars[i] == '.') {
                  if (hasDecPoint || hasExp) {
                      // two decimal points or dec in exponent   
                      return false;
                  }
                  hasDecPoint = true;
              } else if (chars[i] == 'e' || chars[i] == 'E') {
                  // we've already taken care of hex.
                  if (hasExp) {
                      // two E's
                      return false;
                  }
                  if (!foundDigit) {
                      return false;
                  }
                  hasExp = true;
                  allowSigns = true;
              } else if (chars[i] == '+' || chars[i] == '-') {
                  if (!allowSigns) {
                      return false;
                  }
                  allowSigns = false;
                  foundDigit = false; // we need a digit after the E
              } else {
                  return false;
              }
              i++;
          }
          if (i < chars.length) {
              if (chars[i] >= '0' && chars[i] <= '9') {
                  // no type qualifier, OK
                  return true;
              }
              if (chars[i] == 'e' || chars[i] == 'E') {
                  // can't have an E at the last byte
                  return false;
              }
              if (!allowSigns
                  && (chars[i] == 'd'
                      || chars[i] == 'D'
                      || chars[i] == 'f'
                      || chars[i] == 'F')) {
                  return foundDigit;
              }
              if (chars[i] == 'l'
                  || chars[i] == 'L') {
                  // not allowing L with an exponoent
                  return foundDigit && !hasExp;
              }
              // last character is illegal
              return false;
          }
          // allowSigns is true iff the val ends in 'E'
          // found digit it to make sure weird stuff like '.' and '1E-' doesn't pass
          return !allowSigns && foundDigit;
      }
      
  }
  
  
  
  1.15      +3 -2      jakarta-commons/lang/src/java/org/apache/commons/lang/builder/CompareToBuilder.java
  
  Index: CompareToBuilder.java
  ===================================================================
  RCS file: /home/cvs/jakarta-commons/lang/src/java/org/apache/commons/lang/builder/CompareToBuilder.java,v
  retrieving revision 1.14
  retrieving revision 1.15
  diff -u -r1.14 -r1.15
  --- CompareToBuilder.java	18 Apr 2003 09:12:16 -0000	1.14
  +++ CompareToBuilder.java	24 Jun 2003 21:14:50 -0000	1.15
  @@ -57,7 +57,8 @@
   import java.lang.reflect.Modifier;
   import java.util.Comparator;
   
  -import org.apache.commons.lang.NumberUtils;
  +import org.apache.commons.lang.math.NumberUtils;
  +
   /** 
    * <p><code>CompareTo</code> generation routines.</p>
    *
  
  
  
  1.5       +3 -1      jakarta-commons/lang/src/java/org/apache/commons/lang/BooleanUtils.java
  
  Index: BooleanUtils.java
  ===================================================================
  RCS file: /home/cvs/jakarta-commons/lang/src/java/org/apache/commons/lang/BooleanUtils.java,v
  retrieving revision 1.4
  retrieving revision 1.5
  diff -u -r1.4 -r1.5
  --- BooleanUtils.java	4 Feb 2003 22:50:31 -0000	1.4
  +++ BooleanUtils.java	24 Jun 2003 21:14:50 -0000	1.5
  @@ -53,6 +53,8 @@
    */
   package org.apache.commons.lang;
   
  +import org.apache.commons.lang.math.NumberUtils;
  +
   /**
    * <p><code>BooleanUtils</code> contains utility methods for working for
    * boolean and Boolean objects.</p>
  
  
  
  1.11      +6 -38     jakarta-commons/lang/src/java/org/apache/commons/lang/NumberUtils.java
  
  Index: NumberUtils.java
  ===================================================================
  RCS file: /home/cvs/jakarta-commons/lang/src/java/org/apache/commons/lang/NumberUtils.java,v
  retrieving revision 1.10
  retrieving revision 1.11
  diff -u -r1.10 -r1.11
  --- NumberUtils.java	8 Jun 2003 14:14:01 -0000	1.10
  +++ NumberUtils.java	24 Jun 2003 21:14:50 -0000	1.11
  @@ -55,6 +55,7 @@
   
   import java.math.BigInteger;
   import java.math.BigDecimal;
  +
   /**
    * <p>Provides extra functionality for Java Number classes.</p>
    *
  @@ -66,46 +67,13 @@
    * @author Phil Steitz
    * @since 1.0
    * @version $Id$
  + * 
  + * @deprecated Moved to org.apache.commons.lang.math.
  + *             Class will be removed in Commons Lang 3.0.
    */
   public final class NumberUtils {
  +    // DEPRECATED CLASS !!!
       
  -    /** Reusable Long constant for zero. */
  -    public static final Long LONG_ZERO = new Long(0L);
  -    /** Reusable Long constant for one. */
  -    public static final Long LONG_ONE = new Long(1L);
  -    /** Reusable Long constant for minus one. */
  -    public static final Long LONG_MINUS_ONE = new Long(-1L);
  -    /** Reusable Integer constant for zero. */
  -    public static final Integer INTEGER_ZERO = new Integer(0);
  -    /** Reusable Integer constant for one. */
  -    public static final Integer INTEGER_ONE = new Integer(1);
  -    /** Reusable Integer constant for minus one. */
  -    public static final Integer INTEGER_MINUS_ONE = new Integer(-1);
  -    /** Reusable Short constant for zero. */
  -    public static final Short SHORT_ZERO = new Short((short) 0);
  -    /** Reusable Short constant for one. */
  -    public static final Short SHORT_ONE = new Short((short) 1);
  -    /** Reusable Short constant for minus one. */
  -    public static final Short SHORT_MINUS_ONE = new Short((short) -1);
  -    /** Reusable Byte constant for zero. */
  -    public static final Byte BYTE_ZERO = new Byte((byte) 0);
  -    /** Reusable Byte constant for one. */
  -    public static final Byte BYTE_ONE = new Byte((byte) 1);
  -    /** Reusable Byte constant for minus one. */
  -    public static final Byte BYTE_MINUS_ONE = new Byte((byte) -1);
  -    /** Reusable Double constant for zero. */
  -    public static final Double DOUBLE_ZERO = new Double(0.0d);
  -    /** Reusable Double constant for one. */
  -    public static final Double DOUBLE_ONE = new Double(1.0d);
  -    /** Reusable Double constant for minus one. */
  -    public static final Double DOUBLE_MINUS_ONE = new Double(-1.0d);
  -    /** Reusable Float constant for zero. */
  -    public static final Float FLOAT_ZERO = new Float(0.0f);
  -    /** Reusable Float constant for one. */
  -    public static final Float FLOAT_ONE = new Float(1.0f);
  -    /** Reusable Float constant for minus one. */
  -    public static final Float FLOAT_MINUS_ONE = new Float(-1.0f);
  -
       /**
        * <p><code>NumberUtils</code> instances should NOT be constructed in standard programming.
        * Instead, the class should be used as <code>NumberUtils.stringToInt("6");</code>.</p>
  
  
  
  1.51      +4 -2      jakarta-commons/lang/src/java/org/apache/commons/lang/StringUtils.java
  
  Index: StringUtils.java
  ===================================================================
  RCS file: /home/cvs/jakarta-commons/lang/src/java/org/apache/commons/lang/StringUtils.java,v
  retrieving revision 1.50
  retrieving revision 1.51
  diff -u -r1.50 -r1.51
  --- StringUtils.java	24 Jun 2003 08:15:15 -0000	1.50
  +++ StringUtils.java	24 Jun 2003 21:14:50 -0000	1.51
  @@ -56,6 +56,8 @@
   import java.util.Iterator;
   import java.util.StringTokenizer;
   
  +import org.apache.commons.lang.math.NumberUtils;
  +
   /**
    * <p>Common <code>String</code> manipulation routines.</p>
    *
  @@ -2292,7 +2294,7 @@
                   }
   
                   // Step 6
  -                d[i][j] = NumberUtils.minimum(d[i - 1][j] + 1, d[i][j - 1] + 1, d[i - 1][j - 1] + cost);
  +                d[i][j] = NumberUtils.min(d[i - 1][j] + 1, d[i][j - 1] + 1, d[i - 1][j - 1] + cost);
               }
           }
   
  
  
  
  1.4       +3 -2      jakarta-commons/lang/src/test/org/apache/commons/lang/math/MathTestSuite.java
  
  Index: MathTestSuite.java
  ===================================================================
  RCS file: /home/cvs/jakarta-commons/lang/src/test/org/apache/commons/lang/math/MathTestSuite.java,v
  retrieving revision 1.3
  retrieving revision 1.4
  diff -u -r1.3 -r1.4
  --- MathTestSuite.java	14 May 2003 02:41:26 -0000	1.3
  +++ MathTestSuite.java	24 Jun 2003 21:14:51 -0000	1.4
  @@ -1,7 +1,7 @@
   /* ====================================================================
    * The Apache Software License, Version 1.1
    *
  - * Copyright (c) 2002 The Apache Software Foundation.  All rights
  + * Copyright (c) 2002-2003 The Apache Software Foundation.  All rights
    * reserved.
    *
    * Redistribution and use in source and binary forms, with or without
  @@ -91,6 +91,7 @@
           suite.addTest(IntRangeTest.suite());
           suite.addTest(LongRangeTest.suite());
           suite.addTest(NumberRangeTest.suite());
  +        suite.addTest(NumberUtilsTest.suite());
           suite.addTest(RandomUtilsTest.suite());
           return suite;
       }
  
  
  
  1.1                  jakarta-commons/lang/src/test/org/apache/commons/lang/math/NumberUtilsTest.java
  
  Index: NumberUtilsTest.java
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2002-2003 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Commons", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  package org.apache.commons.lang.math;
  
  import java.math.BigDecimal;
  import java.math.BigInteger;
  
  import junit.framework.Test;
  import junit.framework.TestCase;
  import junit.framework.TestSuite;
  
  import org.apache.commons.lang.SystemUtils;
  
  /**
   * Unit tests {@link org.apache.commons.lang.math.NumberUtils}.
   *
   * @author <a href="mailto:rand_mcneely@yahoo.com">Rand McNeely</a>
   * @author <a href="mailto:ridesmet@users.sourceforge.net">Ringo De Smet</a>
   * @author Eric Pugh
   * @author Phil Steitz
   * @author Stephen Colebourne
   * @version $Id: NumberUtilsTest.java,v 1.1 2003/06/24 21:14:51 scolebourne Exp $
   */
  public class NumberUtilsTest extends TestCase {
  
      public NumberUtilsTest(String name) {
          super(name);
      }
  
      public static Test suite() {
          TestSuite suite = new TestSuite(NumberUtilsTest.class);
          suite.setName("NumberUtils Tests");
          return suite;
      }
  
      //---------------------------------------------------------------------
  
      /**
       * Test for int stringToInt(String)
       */
      public void testStringToIntString() {
          assertTrue("stringToInt(String) 1 failed", NumberUtils.stringToInt("12345") == 12345);
          assertTrue("stringToInt(String) 2 failed", NumberUtils.stringToInt("abc") == 0);
      }
  
      /**
       * Test for int stringToInt(String, int)
       */
      public void testStringToIntStringI() {
          assertTrue("stringToInt(String,int) 1 failed", NumberUtils.stringToInt("12345", 5) == 12345);
          assertTrue("stringToInt(String,int) 2 failed", NumberUtils.stringToInt("1234.5", 5) == 5);
      }
  
      public void testCreateNumber() {
          //a lot of things can go wrong
          assertEquals("createNumber(String) 1 failed", new Float("1234.5"), NumberUtils.createNumber("1234.5"));
          assertEquals("createNumber(String) 2 failed", new Integer("12345"), NumberUtils.createNumber("12345"));
          assertEquals("createNumber(String) 3 failed", new Double("1234.5"), NumberUtils.createNumber("1234.5D"));
          assertEquals("createNumber(String) 4 failed", new Float("1234.5"), NumberUtils.createNumber("1234.5F"));
          assertEquals("createNumber(String) 5 failed", new Long(Integer.MAX_VALUE + 1L), NumberUtils.createNumber("" + (Integer.MAX_VALUE + 1L)));
          assertEquals("createNumber(String) 6 failed", new Long(12345), NumberUtils.createNumber("12345L"));
          assertEquals("createNumber(String) 7 failed", new Float("-1234.5"), NumberUtils.createNumber("-1234.5"));
          assertEquals("createNumber(String) 8 failed", new Integer("-12345"), NumberUtils.createNumber("-12345"));
          assertTrue("createNumber(String) 9 failed", 0xFADE == NumberUtils.createNumber("0xFADE").intValue());
          assertTrue("createNumber(String) 10 failed", -0xFADE == NumberUtils.createNumber("-0xFADE").intValue());
          assertEquals("createNumber(String) 11 failed", new Double("1.1E200"), NumberUtils.createNumber("1.1E200"));
          assertEquals("createNumber(String) 12 failed", new Float("1.1E20"), NumberUtils.createNumber("1.1E20"));
          assertEquals("createNumber(String) 13 failed", new Double("-1.1E200"), NumberUtils.createNumber("-1.1E200"));
          assertEquals("createNumber(String) 14 failed", new Double("1.1E-200"), NumberUtils.createNumber("1.1E-200"));
  
          // jdk 1.2 doesn't support this. unsure about jdk 1.2.2
          if(SystemUtils.isJavaVersionAtLeast(1.3f)) { 
              assertEquals("createNumber(String) 15 failed", new BigDecimal("1.1E-700"), NumberUtils.createNumber("1.1E-700F"));
          }
          assertEquals(
              "createNumber(String) 16 failed",
              new Long("10" + Integer.MAX_VALUE),
              NumberUtils.createNumber("10" + Integer.MAX_VALUE + "L"));
          assertEquals(
              "createNumber(String) 17 failed",
              new Long("10" + Integer.MAX_VALUE),
              NumberUtils.createNumber("10" + Integer.MAX_VALUE));
          assertEquals(
              "createNumber(String) 18 failed",
              new BigInteger("10" + Long.MAX_VALUE),
              NumberUtils.createNumber("10" + Long.MAX_VALUE));
  
      }
  
      public void testCreateFloat() {
          assertEquals("createFloat(String) failed", new Float("1234.5"), NumberUtils.createFloat("1234.5"));
      }
  
      public void testCreateDouble() {
          assertEquals("createDouble(String) failed", new Double("1234.5"), NumberUtils.createDouble("1234.5"));
      }
  
      public void testCreateInteger() {
          assertEquals("createInteger(String) failed", new Integer("12345"), NumberUtils.createInteger("12345"));
      }
  
      public void testCreateLong() {
          assertEquals("createInteger(String) failed", new Long("12345"), NumberUtils.createLong("12345"));
      }
  
      public void testCreateBigInteger() {
          assertEquals("createBigInteger(String) failed", new BigInteger("12345"), NumberUtils.createBigInteger("12345"));
      }
  
      public void testCreateBigDecimal() {
          assertEquals("createBigDecimal(String) failed", new BigDecimal("1234.5"), NumberUtils.createBigDecimal("1234.5"));
      }
  
      public void testMinimumLong() {
          assertEquals("minimum(long,long,long) 1 failed", 12345L, NumberUtils.min(12345L, 12345L + 1L, 12345L + 2L));
          assertEquals("minimum(long,long,long) 2 failed", 12345L, NumberUtils.min(12345L + 1L, 12345L, 12345 + 2L));
          assertEquals("minimum(long,long,long) 3 failed", 12345L, NumberUtils.min(12345L + 1L, 12345L + 2L, 12345L));
          assertEquals("minimum(long,long,long) 4 failed", 12345L, NumberUtils.min(12345L + 1L, 12345L, 12345L));
          assertEquals("minimum(long,long,long) 5 failed", 12345L, NumberUtils.min(12345L, 12345L, 12345L));
      }
  
      public void testMinimumInt() {
          assertEquals("minimum(int,int,int) 1 failed", 12345, NumberUtils.min(12345, 12345 + 1, 12345 + 2));
          assertEquals("minimum(int,int,int) 2 failed", 12345, NumberUtils.min(12345 + 1, 12345, 12345 + 2));
          assertEquals("minimum(int,int,int) 3 failed", 12345, NumberUtils.min(12345 + 1, 12345 + 2, 12345));
          assertEquals("minimum(int,int,int) 4 failed", 12345, NumberUtils.min(12345 + 1, 12345, 12345));
          assertEquals("minimum(int,int,int) 5 failed", 12345, NumberUtils.min(12345, 12345, 12345));
      }
  
      public void testMinimumShort() {
          short low = 1234;
          short mid = 1234 + 1;
          short high = 1234 + 2;
          assertEquals("minimum(int,int,int) 1 failed", low, NumberUtils.min(low, mid, high));
          assertEquals("minimum(int,int,int) 1 failed", low, NumberUtils.min(mid, low, high));
          assertEquals("minimum(int,int,int) 1 failed", low, NumberUtils.min(mid, high, low));
          assertEquals("minimum(int,int,int) 1 failed", low, NumberUtils.min(low, mid, low));
      }
  
      public void testMinimumByte() {
          byte low = 123;
          byte mid = 123 + 1;
          byte high = 123 + 2;
          assertEquals("minimum(int,int,int) 1 failed", low, NumberUtils.min(low, mid, high));
          assertEquals("minimum(int,int,int) 1 failed", low, NumberUtils.min(mid, low, high));
          assertEquals("minimum(int,int,int) 1 failed", low, NumberUtils.min(mid, high, low));
          assertEquals("minimum(int,int,int) 1 failed", low, NumberUtils.min(low, mid, low));
      }
  
      public void testMaximumLong() {
          assertEquals("maximum(long,long,long) 1 failed", 12345L, NumberUtils.max(12345L, 12345L - 1L, 12345L - 2L));
          assertEquals("maximum(long,long,long) 2 failed", 12345L, NumberUtils.max(12345L - 1L, 12345L, 12345L - 2L));
          assertEquals("maximum(long,long,long) 3 failed", 12345L, NumberUtils.max(12345L - 1L, 12345L - 2L, 12345L));
          assertEquals("maximum(long,long,long) 4 failed", 12345L, NumberUtils.max(12345L - 1L, 12345L, 12345L));
          assertEquals("maximum(long,long,long) 5 failed", 12345L, NumberUtils.max(12345L, 12345L, 12345L));
      }
  
      public void testMaximumInt() {
          assertEquals("maximum(int,int,int) 1 failed", 12345, NumberUtils.max(12345, 12345 - 1, 12345 - 2));
          assertEquals("maximum(int,int,int) 2 failed", 12345, NumberUtils.max(12345 - 1, 12345, 12345 - 2));
          assertEquals("maximum(int,int,int) 3 failed", 12345, NumberUtils.max(12345 - 1, 12345 - 2, 12345));
          assertEquals("maximum(int,int,int) 4 failed", 12345, NumberUtils.max(12345 - 1, 12345, 12345));
          assertEquals("maximum(int,int,int) 5 failed", 12345, NumberUtils.max(12345, 12345, 12345));
      }
  
      public void testMaximumShort() {
          short low = 1234;
          short mid = 1234 + 1;
          short high = 1234 + 2;
          assertEquals("minimum(int,int,int) 1 failed", high, NumberUtils.max(low, mid, high));
          assertEquals("minimum(int,int,int) 1 failed", high, NumberUtils.max(mid, low, high));
          assertEquals("minimum(int,int,int) 1 failed", high, NumberUtils.max(mid, high, low));
          assertEquals("minimum(int,int,int) 1 failed", high, NumberUtils.max(high, mid, high));
      }
  
      public void testMaximumByte() {
          byte low = 123;
          byte mid = 123 + 1;
          byte high = 123 + 2;
          assertEquals("minimum(int,int,int) 1 failed", high, NumberUtils.max(low, mid, high));
          assertEquals("minimum(int,int,int) 1 failed", high, NumberUtils.max(mid, low, high));
          assertEquals("minimum(int,int,int) 1 failed", high, NumberUtils.max(mid, high, low));
          assertEquals("minimum(int,int,int) 1 failed", high, NumberUtils.max(high, mid, high));
      }
  
      public void testCompareDouble() {
          assertTrue(NumberUtils.compare(Double.NaN, Double.NaN) == 0);
          assertTrue(NumberUtils.compare(Double.NaN, Double.POSITIVE_INFINITY) == +1);
          assertTrue(NumberUtils.compare(Double.NaN, Double.MAX_VALUE) == +1);
          assertTrue(NumberUtils.compare(Double.NaN, 1.2d) == +1);
          assertTrue(NumberUtils.compare(Double.NaN, 0.0d) == +1);
          assertTrue(NumberUtils.compare(Double.NaN, -0.0d) == +1);
          assertTrue(NumberUtils.compare(Double.NaN, -1.2d) == +1);
          assertTrue(NumberUtils.compare(Double.NaN, -Double.MAX_VALUE) == +1);
          assertTrue(NumberUtils.compare(Double.NaN, Double.NEGATIVE_INFINITY) == +1);
          
          assertTrue(NumberUtils.compare(Double.POSITIVE_INFINITY, Double.NaN) == -1);
          assertTrue(NumberUtils.compare(Double.POSITIVE_INFINITY, Double.POSITIVE_INFINITY) == 0);
          assertTrue(NumberUtils.compare(Double.POSITIVE_INFINITY, Double.MAX_VALUE) == +1);
          assertTrue(NumberUtils.compare(Double.POSITIVE_INFINITY, 1.2d) == +1);
          assertTrue(NumberUtils.compare(Double.POSITIVE_INFINITY, 0.0d) == +1);
          assertTrue(NumberUtils.compare(Double.POSITIVE_INFINITY, -0.0d) == +1);
          assertTrue(NumberUtils.compare(Double.POSITIVE_INFINITY, -1.2d) == +1);
          assertTrue(NumberUtils.compare(Double.POSITIVE_INFINITY, -Double.MAX_VALUE) == +1);
          assertTrue(NumberUtils.compare(Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY) == +1);
          
          assertTrue(NumberUtils.compare(Double.MAX_VALUE, Double.NaN) == -1);
          assertTrue(NumberUtils.compare(Double.MAX_VALUE, Double.POSITIVE_INFINITY) == -1);
          assertTrue(NumberUtils.compare(Double.MAX_VALUE, Double.MAX_VALUE) == 0);
          assertTrue(NumberUtils.compare(Double.MAX_VALUE, 1.2d) == +1);
          assertTrue(NumberUtils.compare(Double.MAX_VALUE, 0.0d) == +1);
          assertTrue(NumberUtils.compare(Double.MAX_VALUE, -0.0d) == +1);
          assertTrue(NumberUtils.compare(Double.MAX_VALUE, -1.2d) == +1);
          assertTrue(NumberUtils.compare(Double.MAX_VALUE, -Double.MAX_VALUE) == +1);
          assertTrue(NumberUtils.compare(Double.MAX_VALUE, Double.NEGATIVE_INFINITY) == +1);
          
          assertTrue(NumberUtils.compare(1.2d, Double.NaN) == -1);
          assertTrue(NumberUtils.compare(1.2d, Double.POSITIVE_INFINITY) == -1);
          assertTrue(NumberUtils.compare(1.2d, Double.MAX_VALUE) == -1);
          assertTrue(NumberUtils.compare(1.2d, 1.2d) == 0);
          assertTrue(NumberUtils.compare(1.2d, 0.0d) == +1);
          assertTrue(NumberUtils.compare(1.2d, -0.0d) == +1);
          assertTrue(NumberUtils.compare(1.2d, -1.2d) == +1);
          assertTrue(NumberUtils.compare(1.2d, -Double.MAX_VALUE) == +1);
          assertTrue(NumberUtils.compare(1.2d, Double.NEGATIVE_INFINITY) == +1);
          
          assertTrue(NumberUtils.compare(0.0d, Double.NaN) == -1);
          assertTrue(NumberUtils.compare(0.0d, Double.POSITIVE_INFINITY) == -1);
          assertTrue(NumberUtils.compare(0.0d, Double.MAX_VALUE) == -1);
          assertTrue(NumberUtils.compare(0.0d, 1.2d) == -1);
          assertTrue(NumberUtils.compare(0.0d, 0.0d) == 0);
          assertTrue(NumberUtils.compare(0.0d, -0.0d) == +1);
          assertTrue(NumberUtils.compare(0.0d, -1.2d) == +1);
          assertTrue(NumberUtils.compare(0.0d, -Double.MAX_VALUE) == +1);
          assertTrue(NumberUtils.compare(0.0d, Double.NEGATIVE_INFINITY) == +1);
          
          assertTrue(NumberUtils.compare(-0.0d, Double.NaN) == -1);
          assertTrue(NumberUtils.compare(-0.0d, Double.POSITIVE_INFINITY) == -1);
          assertTrue(NumberUtils.compare(-0.0d, Double.MAX_VALUE) == -1);
          assertTrue(NumberUtils.compare(-0.0d, 1.2d) == -1);
          assertTrue(NumberUtils.compare(-0.0d, 0.0d) == -1);
          assertTrue(NumberUtils.compare(-0.0d, -0.0d) == 0);
          assertTrue(NumberUtils.compare(-0.0d, -1.2d) == +1);
          assertTrue(NumberUtils.compare(-0.0d, -Double.MAX_VALUE) == +1);
          assertTrue(NumberUtils.compare(-0.0d, Double.NEGATIVE_INFINITY) == +1);
          
          assertTrue(NumberUtils.compare(-1.2d, Double.NaN) == -1);
          assertTrue(NumberUtils.compare(-1.2d, Double.POSITIVE_INFINITY) == -1);
          assertTrue(NumberUtils.compare(-1.2d, Double.MAX_VALUE) == -1);
          assertTrue(NumberUtils.compare(-1.2d, 1.2d) == -1);
          assertTrue(NumberUtils.compare(-1.2d, 0.0d) == -1);
          assertTrue(NumberUtils.compare(-1.2d, -0.0d) == -1);
          assertTrue(NumberUtils.compare(-1.2d, -1.2d) == 0);
          assertTrue(NumberUtils.compare(-1.2d, -Double.MAX_VALUE) == +1);
          assertTrue(NumberUtils.compare(-1.2d, Double.NEGATIVE_INFINITY) == +1);
          
          assertTrue(NumberUtils.compare(-Double.MAX_VALUE, Double.NaN) == -1);
          assertTrue(NumberUtils.compare(-Double.MAX_VALUE, Double.POSITIVE_INFINITY) == -1);
          assertTrue(NumberUtils.compare(-Double.MAX_VALUE, Double.MAX_VALUE) == -1);
          assertTrue(NumberUtils.compare(-Double.MAX_VALUE, 1.2d) == -1);
          assertTrue(NumberUtils.compare(-Double.MAX_VALUE, 0.0d) == -1);
          assertTrue(NumberUtils.compare(-Double.MAX_VALUE, -0.0d) == -1);
          assertTrue(NumberUtils.compare(-Double.MAX_VALUE, -1.2d) == -1);
          assertTrue(NumberUtils.compare(-Double.MAX_VALUE, -Double.MAX_VALUE) == 0);
          assertTrue(NumberUtils.compare(-Double.MAX_VALUE, Double.NEGATIVE_INFINITY) == +1);
          
          assertTrue(NumberUtils.compare(Double.NEGATIVE_INFINITY, Double.NaN) == -1);
          assertTrue(NumberUtils.compare(Double.NEGATIVE_INFINITY, Double.POSITIVE_INFINITY) == -1);
          assertTrue(NumberUtils.compare(Double.NEGATIVE_INFINITY, Double.MAX_VALUE) == -1);
          assertTrue(NumberUtils.compare(Double.NEGATIVE_INFINITY, 1.2d) == -1);
          assertTrue(NumberUtils.compare(Double.NEGATIVE_INFINITY, 0.0d) == -1);
          assertTrue(NumberUtils.compare(Double.NEGATIVE_INFINITY, -0.0d) == -1);
          assertTrue(NumberUtils.compare(Double.NEGATIVE_INFINITY, -1.2d) == -1);
          assertTrue(NumberUtils.compare(Double.NEGATIVE_INFINITY, -Double.MAX_VALUE) == -1);
          assertTrue(NumberUtils.compare(Double.NEGATIVE_INFINITY, Double.NEGATIVE_INFINITY) == 0);
      }
  
      public void testCompareFloat() {
          assertTrue(NumberUtils.compare(Float.NaN, Float.NaN) == 0);
          assertTrue(NumberUtils.compare(Float.NaN, Float.POSITIVE_INFINITY) == +1);
          assertTrue(NumberUtils.compare(Float.NaN, Float.MAX_VALUE) == +1);
          assertTrue(NumberUtils.compare(Float.NaN, 1.2f) == +1);
          assertTrue(NumberUtils.compare(Float.NaN, 0.0f) == +1);
          assertTrue(NumberUtils.compare(Float.NaN, -0.0f) == +1);
          assertTrue(NumberUtils.compare(Float.NaN, -1.2f) == +1);
          assertTrue(NumberUtils.compare(Float.NaN, -Float.MAX_VALUE) == +1);
          assertTrue(NumberUtils.compare(Float.NaN, Float.NEGATIVE_INFINITY) == +1);
          
          assertTrue(NumberUtils.compare(Float.POSITIVE_INFINITY, Float.NaN) == -1);
          assertTrue(NumberUtils.compare(Float.POSITIVE_INFINITY, Float.POSITIVE_INFINITY) == 0);
          assertTrue(NumberUtils.compare(Float.POSITIVE_INFINITY, Float.MAX_VALUE) == +1);
          assertTrue(NumberUtils.compare(Float.POSITIVE_INFINITY, 1.2f) == +1);
          assertTrue(NumberUtils.compare(Float.POSITIVE_INFINITY, 0.0f) == +1);
          assertTrue(NumberUtils.compare(Float.POSITIVE_INFINITY, -0.0f) == +1);
          assertTrue(NumberUtils.compare(Float.POSITIVE_INFINITY, -1.2f) == +1);
          assertTrue(NumberUtils.compare(Float.POSITIVE_INFINITY, -Float.MAX_VALUE) == +1);
          assertTrue(NumberUtils.compare(Float.POSITIVE_INFINITY, Float.NEGATIVE_INFINITY) == +1);
          
          assertTrue(NumberUtils.compare(Float.MAX_VALUE, Float.NaN) == -1);
          assertTrue(NumberUtils.compare(Float.MAX_VALUE, Float.POSITIVE_INFINITY) == -1);
          assertTrue(NumberUtils.compare(Float.MAX_VALUE, Float.MAX_VALUE) == 0);
          assertTrue(NumberUtils.compare(Float.MAX_VALUE, 1.2f) == +1);
          assertTrue(NumberUtils.compare(Float.MAX_VALUE, 0.0f) == +1);
          assertTrue(NumberUtils.compare(Float.MAX_VALUE, -0.0f) == +1);
          assertTrue(NumberUtils.compare(Float.MAX_VALUE, -1.2f) == +1);
          assertTrue(NumberUtils.compare(Float.MAX_VALUE, -Float.MAX_VALUE) == +1);
          assertTrue(NumberUtils.compare(Float.MAX_VALUE, Float.NEGATIVE_INFINITY) == +1);
          
          assertTrue(NumberUtils.compare(1.2f, Float.NaN) == -1);
          assertTrue(NumberUtils.compare(1.2f, Float.POSITIVE_INFINITY) == -1);
          assertTrue(NumberUtils.compare(1.2f, Float.MAX_VALUE) == -1);
          assertTrue(NumberUtils.compare(1.2f, 1.2f) == 0);
          assertTrue(NumberUtils.compare(1.2f, 0.0f) == +1);
          assertTrue(NumberUtils.compare(1.2f, -0.0f) == +1);
          assertTrue(NumberUtils.compare(1.2f, -1.2f) == +1);
          assertTrue(NumberUtils.compare(1.2f, -Float.MAX_VALUE) == +1);
          assertTrue(NumberUtils.compare(1.2f, Float.NEGATIVE_INFINITY) == +1);
          
          assertTrue(NumberUtils.compare(0.0f, Float.NaN) == -1);
          assertTrue(NumberUtils.compare(0.0f, Float.POSITIVE_INFINITY) == -1);
          assertTrue(NumberUtils.compare(0.0f, Float.MAX_VALUE) == -1);
          assertTrue(NumberUtils.compare(0.0f, 1.2f) == -1);
          assertTrue(NumberUtils.compare(0.0f, 0.0f) == 0);
          assertTrue(NumberUtils.compare(0.0f, -0.0f) == +1);
          assertTrue(NumberUtils.compare(0.0f, -1.2f) == +1);
          assertTrue(NumberUtils.compare(0.0f, -Float.MAX_VALUE) == +1);
          assertTrue(NumberUtils.compare(0.0f, Float.NEGATIVE_INFINITY) == +1);
          
          assertTrue(NumberUtils.compare(-0.0f, Float.NaN) == -1);
          assertTrue(NumberUtils.compare(-0.0f, Float.POSITIVE_INFINITY) == -1);
          assertTrue(NumberUtils.compare(-0.0f, Float.MAX_VALUE) == -1);
          assertTrue(NumberUtils.compare(-0.0f, 1.2f) == -1);
          assertTrue(NumberUtils.compare(-0.0f, 0.0f) == -1);
          assertTrue(NumberUtils.compare(-0.0f, -0.0f) == 0);
          assertTrue(NumberUtils.compare(-0.0f, -1.2f) == +1);
          assertTrue(NumberUtils.compare(-0.0f, -Float.MAX_VALUE) == +1);
          assertTrue(NumberUtils.compare(-0.0f, Float.NEGATIVE_INFINITY) == +1);
          
          assertTrue(NumberUtils.compare(-1.2f, Float.NaN) == -1);
          assertTrue(NumberUtils.compare(-1.2f, Float.POSITIVE_INFINITY) == -1);
          assertTrue(NumberUtils.compare(-1.2f, Float.MAX_VALUE) == -1);
          assertTrue(NumberUtils.compare(-1.2f, 1.2f) == -1);
          assertTrue(NumberUtils.compare(-1.2f, 0.0f) == -1);
          assertTrue(NumberUtils.compare(-1.2f, -0.0f) == -1);
          assertTrue(NumberUtils.compare(-1.2f, -1.2f) == 0);
          assertTrue(NumberUtils.compare(-1.2f, -Float.MAX_VALUE) == +1);
          assertTrue(NumberUtils.compare(-1.2f, Float.NEGATIVE_INFINITY) == +1);
          
          assertTrue(NumberUtils.compare(-Float.MAX_VALUE, Float.NaN) == -1);
          assertTrue(NumberUtils.compare(-Float.MAX_VALUE, Float.POSITIVE_INFINITY) == -1);
          assertTrue(NumberUtils.compare(-Float.MAX_VALUE, Float.MAX_VALUE) == -1);
          assertTrue(NumberUtils.compare(-Float.MAX_VALUE, 1.2f) == -1);
          assertTrue(NumberUtils.compare(-Float.MAX_VALUE, 0.0f) == -1);
          assertTrue(NumberUtils.compare(-Float.MAX_VALUE, -0.0f) == -1);
          assertTrue(NumberUtils.compare(-Float.MAX_VALUE, -1.2f) == -1);
          assertTrue(NumberUtils.compare(-Float.MAX_VALUE, -Float.MAX_VALUE) == 0);
          assertTrue(NumberUtils.compare(-Float.MAX_VALUE, Float.NEGATIVE_INFINITY) == +1);
          
          assertTrue(NumberUtils.compare(Float.NEGATIVE_INFINITY, Float.NaN) == -1);
          assertTrue(NumberUtils.compare(Float.NEGATIVE_INFINITY, Float.POSITIVE_INFINITY) == -1);
          assertTrue(NumberUtils.compare(Float.NEGATIVE_INFINITY, Float.MAX_VALUE) == -1);
          assertTrue(NumberUtils.compare(Float.NEGATIVE_INFINITY, 1.2f) == -1);
          assertTrue(NumberUtils.compare(Float.NEGATIVE_INFINITY, 0.0f) == -1);
          assertTrue(NumberUtils.compare(Float.NEGATIVE_INFINITY, -0.0f) == -1);
          assertTrue(NumberUtils.compare(Float.NEGATIVE_INFINITY, -1.2f) == -1);
          assertTrue(NumberUtils.compare(Float.NEGATIVE_INFINITY, -Float.MAX_VALUE) == -1);
          assertTrue(NumberUtils.compare(Float.NEGATIVE_INFINITY, Float.NEGATIVE_INFINITY) == 0);
      }
  
      public void testIsDigits() {
          assertEquals("isDigits(null) failed", false, NumberUtils.isDigits(null));
          assertEquals("isDigits('') failed", false, NumberUtils.isDigits(""));
          assertEquals("isDigits(String) failed", true, NumberUtils.isDigits("12345"));
          assertEquals("isDigits(String) neg 1 failed", false, NumberUtils.isDigits("1234.5"));
          assertEquals("isDigits(String) neg 3 failed", false, NumberUtils.isDigits("1ab"));
          assertEquals("isDigits(String) neg 4 failed", false, NumberUtils.isDigits("abc"));
      }
      
      /**
       * Tests isNumber(String) and tests that createNumber(String) returns
       * a valid number iff isNumber(String) returns false.
       */
      public void testIsNumber() {
          String val = "12345";
          assertTrue("isNumber(String) 1 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 1 failed", checkCreateNumber(val));
          val = "1234.5";
          assertTrue("isNumber(String) 2 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 2 failed", checkCreateNumber(val));
          val = ".12345";
          assertTrue("isNumber(String) 3 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 3 failed", checkCreateNumber(val));
          val = "1234E5";
          assertTrue("isNumber(String) 4 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 4 failed", checkCreateNumber(val));
          val = "1234E+5";
          assertTrue("isNumber(String) 5 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 5 failed", checkCreateNumber(val));
          val = "1234E-5";
          assertTrue("isNumber(String) 6 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 6 failed", checkCreateNumber(val));
          val = "123.4E5";
          assertTrue("isNumber(String) 7 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 7 failed", checkCreateNumber(val));
          val = "-1234";
          assertTrue("isNumber(String) 8 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 8 failed", checkCreateNumber(val));
          val = "-1234.5";
          assertTrue("isNumber(String) 9 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 9 failed", checkCreateNumber(val));
          val = "-.12345";
          assertTrue("isNumber(String) 10 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 10 failed", checkCreateNumber(val));
          val = "-1234E5";
          assertTrue("isNumber(String) 11 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 11 failed", checkCreateNumber(val));
          val = "0";
          assertTrue("isNumber(String) 12 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 12 failed", checkCreateNumber(val));
          val = "-0";
          assertTrue("isNumber(String) 13 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 13 failed", checkCreateNumber(val));
          val = "01234";
          assertTrue("isNumber(String) 14 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 14 failed", checkCreateNumber(val));
          val = "-01234";
          assertTrue("isNumber(String) 15 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 15 failed", checkCreateNumber(val));
          val = "0xABC123";
          assertTrue("isNumber(String) 16 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 16 failed", checkCreateNumber(val));
          val = "0x0";
          assertTrue("isNumber(String) 17 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 17 failed", checkCreateNumber(val));
          val = "123.4E21D";
          assertTrue("isNumber(String) 19 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 19 failed", checkCreateNumber(val));
          val = "-221.23F";
          assertTrue("isNumber(String) 20 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 20 failed", checkCreateNumber(val));
          val = "22338L";
          assertTrue("isNumber(String) 21 failed", NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 21 failed", checkCreateNumber(val));
          val = null;
          assertTrue("isNumber(String) 1 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 1 Neg failed", !checkCreateNumber(val));
          val = "";
          assertTrue("isNumber(String) 2 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 2 Neg failed", !checkCreateNumber(val));
          val = "--2.3";
          assertTrue("isNumber(String) 3 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 3 Neg failed", !checkCreateNumber(val));
          val = ".12.3";
          assertTrue("isNumber(String) 4 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 4 Neg failed", !checkCreateNumber(val));
          val = "-123E";
          assertTrue("isNumber(String) 5 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 5 Neg failed", !checkCreateNumber(val));
          val = "-123E+-212";
          assertTrue("isNumber(String) 6 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 6 Neg failed", !checkCreateNumber(val));
          val = "-123E2.12";
          assertTrue("isNumber(String) 7 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 7 Neg failed", !checkCreateNumber(val));
          val = "0xGF";
          assertTrue("isNumber(String) 8 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 8 Neg failed", !checkCreateNumber(val));
          val = "0xFAE-1";
          assertTrue("isNumber(String) 9 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 9 Neg failed", !checkCreateNumber(val));
          val = ".";
          assertTrue("isNumber(String) 10 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 10 Neg failed", !checkCreateNumber(val));
          val = "-0ABC123";
          assertTrue("isNumber(String) 11 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 11 Neg failed", !checkCreateNumber(val));
          val = "123.4E-D";
          assertTrue("isNumber(String) 12 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 12 Neg failed", !checkCreateNumber(val));
          val = "123.4ED";
          assertTrue("isNumber(String) 13 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 13 Neg failed", !checkCreateNumber(val));
          val = "1234E5l";
          assertTrue("isNumber(String) 14 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 14 Neg failed", !checkCreateNumber(val));
          val = "11a";
          assertTrue("isNumber(String) 15 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 15 Neg failed", !checkCreateNumber(val)); 
          val = "1a";
          assertTrue("isNumber(String) 16 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 16 Neg failed", !checkCreateNumber(val)); 
          val = "a";
          assertTrue("isNumber(String) 17 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 17 Neg failed", !checkCreateNumber(val)); 
          val = "11g";
          assertTrue("isNumber(String) 18 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 18 Neg failed", !checkCreateNumber(val)); 
          val = "11z";
          assertTrue("isNumber(String) 19 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 19 Neg failed", !checkCreateNumber(val)); 
          val = "11def";
          assertTrue("isNumber(String) 20 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 20 Neg failed", !checkCreateNumber(val)); 
          val = "11d11";
          assertTrue("isNumber(String) 21 Neg failed", !NumberUtils.isNumber(val));
          assertTrue("isNumber(String)/createNumber(String) 21 Neg failed", !checkCreateNumber(val)); 
  
      }
  
      private boolean checkCreateNumber(String val) {
          try {
              Object obj = NumberUtils.createNumber(val);
              if (obj == null) {
                  return false;
              }
              return true;
          } catch (NumberFormatException e) {
              return false;
          } catch (NullPointerException e) {
              return false;
          }
      }
  
      public void testConstants() {
          assertTrue(NumberUtils.LONG_ZERO instanceof Long);
          assertTrue(NumberUtils.LONG_ONE instanceof Long);
          assertTrue(NumberUtils.LONG_MINUS_ONE instanceof Long);
          assertTrue(NumberUtils.INTEGER_ZERO instanceof Integer);
          assertTrue(NumberUtils.INTEGER_ONE instanceof Integer);
          assertTrue(NumberUtils.INTEGER_MINUS_ONE instanceof Integer);
          assertTrue(NumberUtils.SHORT_ZERO instanceof Short);
          assertTrue(NumberUtils.SHORT_ONE instanceof Short);
          assertTrue(NumberUtils.SHORT_MINUS_ONE instanceof Short);
          assertTrue(NumberUtils.BYTE_ZERO instanceof Byte);
          assertTrue(NumberUtils.BYTE_ONE instanceof Byte);
          assertTrue(NumberUtils.BYTE_MINUS_ONE instanceof Byte);
          assertTrue(NumberUtils.DOUBLE_ZERO instanceof Double);
          assertTrue(NumberUtils.DOUBLE_ONE instanceof Double);
          assertTrue(NumberUtils.DOUBLE_MINUS_ONE instanceof Double);
          assertTrue(NumberUtils.FLOAT_ZERO instanceof Float);
          assertTrue(NumberUtils.FLOAT_ONE instanceof Float);
          assertTrue(NumberUtils.FLOAT_MINUS_ONE instanceof Float);
          
          assertTrue(NumberUtils.LONG_ZERO.longValue() == 0);
          assertTrue(NumberUtils.LONG_ONE.longValue() == 1);
          assertTrue(NumberUtils.LONG_MINUS_ONE.longValue() == -1);
          assertTrue(NumberUtils.INTEGER_ZERO.intValue() == 0);
          assertTrue(NumberUtils.INTEGER_ONE.intValue() == 1);
          assertTrue(NumberUtils.INTEGER_MINUS_ONE.intValue() == -1);
          assertTrue(NumberUtils.SHORT_ZERO.shortValue() == 0);
          assertTrue(NumberUtils.SHORT_ONE.shortValue() == 1);
          assertTrue(NumberUtils.SHORT_MINUS_ONE.shortValue() == -1);
          assertTrue(NumberUtils.BYTE_ZERO.byteValue() == 0);
          assertTrue(NumberUtils.BYTE_ONE.byteValue() == 1);
          assertTrue(NumberUtils.BYTE_MINUS_ONE.byteValue() == -1);
          assertTrue(NumberUtils.DOUBLE_ZERO.doubleValue() == 0.0d);
          assertTrue(NumberUtils.DOUBLE_ONE.doubleValue() == 1.0d);
          assertTrue(NumberUtils.DOUBLE_MINUS_ONE.doubleValue() == -1.0d);
          assertTrue(NumberUtils.FLOAT_ZERO.floatValue() == 0.0f);
          assertTrue(NumberUtils.FLOAT_ONE.floatValue() == 1.0f);
          assertTrue(NumberUtils.FLOAT_MINUS_ONE.floatValue() == -1.0f);
      }
      
  }
  
  
  
  1.8       +1 -40     jakarta-commons/lang/src/test/org/apache/commons/lang/NumberUtilsTest.java
  
  Index: NumberUtilsTest.java
  ===================================================================
  RCS file: /home/cvs/jakarta-commons/lang/src/test/org/apache/commons/lang/NumberUtilsTest.java,v
  retrieving revision 1.7
  retrieving revision 1.8
  diff -u -r1.7 -r1.8
  --- NumberUtilsTest.java	8 Jun 2003 14:14:01 -0000	1.7
  +++ NumberUtilsTest.java	24 Jun 2003 21:14:51 -0000	1.8
  @@ -534,43 +534,4 @@
           }
       }
   
  -    public void testConstants() {
  -        assertTrue(NumberUtils.LONG_ZERO instanceof Long);
  -        assertTrue(NumberUtils.LONG_ONE instanceof Long);
  -        assertTrue(NumberUtils.LONG_MINUS_ONE instanceof Long);
  -        assertTrue(NumberUtils.INTEGER_ZERO instanceof Integer);
  -        assertTrue(NumberUtils.INTEGER_ONE instanceof Integer);
  -        assertTrue(NumberUtils.INTEGER_MINUS_ONE instanceof Integer);
  -        assertTrue(NumberUtils.SHORT_ZERO instanceof Short);
  -        assertTrue(NumberUtils.SHORT_ONE instanceof Short);
  -        assertTrue(NumberUtils.SHORT_MINUS_ONE instanceof Short);
  -        assertTrue(NumberUtils.BYTE_ZERO instanceof Byte);
  -        assertTrue(NumberUtils.BYTE_ONE instanceof Byte);
  -        assertTrue(NumberUtils.BYTE_MINUS_ONE instanceof Byte);
  -        assertTrue(NumberUtils.DOUBLE_ZERO instanceof Double);
  -        assertTrue(NumberUtils.DOUBLE_ONE instanceof Double);
  -        assertTrue(NumberUtils.DOUBLE_MINUS_ONE instanceof Double);
  -        assertTrue(NumberUtils.FLOAT_ZERO instanceof Float);
  -        assertTrue(NumberUtils.FLOAT_ONE instanceof Float);
  -        assertTrue(NumberUtils.FLOAT_MINUS_ONE instanceof Float);
  -        
  -        assertTrue(NumberUtils.LONG_ZERO.longValue() == 0);
  -        assertTrue(NumberUtils.LONG_ONE.longValue() == 1);
  -        assertTrue(NumberUtils.LONG_MINUS_ONE.longValue() == -1);
  -        assertTrue(NumberUtils.INTEGER_ZERO.intValue() == 0);
  -        assertTrue(NumberUtils.INTEGER_ONE.intValue() == 1);
  -        assertTrue(NumberUtils.INTEGER_MINUS_ONE.intValue() == -1);
  -        assertTrue(NumberUtils.SHORT_ZERO.shortValue() == 0);
  -        assertTrue(NumberUtils.SHORT_ONE.shortValue() == 1);
  -        assertTrue(NumberUtils.SHORT_MINUS_ONE.shortValue() == -1);
  -        assertTrue(NumberUtils.BYTE_ZERO.byteValue() == 0);
  -        assertTrue(NumberUtils.BYTE_ONE.byteValue() == 1);
  -        assertTrue(NumberUtils.BYTE_MINUS_ONE.byteValue() == -1);
  -        assertTrue(NumberUtils.DOUBLE_ZERO.doubleValue() == 0.0d);
  -        assertTrue(NumberUtils.DOUBLE_ONE.doubleValue() == 1.0d);
  -        assertTrue(NumberUtils.DOUBLE_MINUS_ONE.doubleValue() == -1.0d);
  -        assertTrue(NumberUtils.FLOAT_ZERO.floatValue() == 0.0f);
  -        assertTrue(NumberUtils.FLOAT_ONE.floatValue() == 1.0f);
  -        assertTrue(NumberUtils.FLOAT_MINUS_ONE.floatValue() == -1.0f);
  -    }
   }
  
  
  

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