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From "Michael Burke" <mbu...@bestweb.net>
Subject Can't create bean
Date Wed, 01 Aug 2001 01:43:28 GMT
I modified the NumberGuessBean example put my jsp page can't create the modified bean now any
suggestions would be appreciated.
The modified  jsp is:<!--
  Copyright (c) 1999 The Apache Software Foundation.  All rights 
  reserved.

  Number Guess Game
  Written by Jason Hunter, CTO, K&A Software
  http://www.servlets.com
-->

<%@ page import = "num.NumberGuessBean" %>

<jsp:useBean id="numguess" class="num.NumberGuessBean" scope="session"/>
<jsp:setProperty name="numguess" property="*"/>

<html>
<head><title>Number Guess</title></head>
<body bgcolor="white">
<font size=4>

<% if (numguess.getSuccess()) { %>

  Congratulations!  You got it.
  And after just <%= numguess.getNumGuesses() %> tries.<p>

  <% numguess.reset(); %>

  Care to <a href="numguess.jsp">try again</a>?

<% } else if (numguess.getNumGuesses() == 0) { %>

  Welcome to the Number Guess game.<p>

  Play with default limits ( a number between 0 and 100)<p>
  or enter upper and lower limits.<p>
  
  <form method=get>
  Play with defaults?: <input type=radio name=default value="yes">Yes
                                  <input type=radio name=default value="no">No
   <\form>
   
   <%  if (numguess.getRadio().equals("no")) { %>
   
   <form method=get>
   Enter upper limit:<input type=text name=upperLimit>
   Enter lower limit:<input type=text name=lowerLimit>
   <\form>
   
   <% numguess.reset(); %>
   
   <% } %>
   
  <form method=get>
  What's your guess? <input type=text name=guess>
  <input type=submit value="Submit">
  </form>

<% } else { %>

  Good guess, but nope.  Try <b><%= numguess.getHint() %></b>.

  You have made <%= numguess.getNumGuesses() %> guesses.<p>

  I'm thinking of a number between <jsp:getProperty name="numguess" property="lowerLimit"/>
and <jsp:getProperty name="numguess" property="upperLimit"/>.<p>

  <form method=get>
  What's your guess? <input type=text name=guess>
  <input type=submit value="Submit">
  </form>

<% } %>



</font>
</body>
</html>
The modified bean which compiles cleanly is:
/*
 * ====================================================================
 *
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 1999 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", "Tomcat", 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 Group.
 *
 * 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/>.
 *
 */

/*
 * Originally written by Jason Hunter, http://www.servlets.com.
 */

package num;

import java.util.*;

public class NumberGuessBean {

  int answer;
  boolean success;
  String hint;
  int numGuesses;
 String radiochoice;
 int lowerLimit=0;
 int upperLimit=100;
 String error;

  public NumberGuessBean() {
    reset();
  }

  public void setGuess(String guess) {
    numGuesses++;

    int g;
    try {
      g = Integer.parseInt(guess);
    }
    catch (NumberFormatException e) {
      g = -1;
    }

    if (g == answer) {
      success = true;
    }
    else if (g == -1) {
      hint = "a number next time";
    }
    else if (g < answer) {
      hint = "higher";
    }
    else if (g > answer) {
      hint = "lower";
    }
  }

public void setRadio(String s) {
 radiochoice=s;
}

public String getRadio() {
 return radiochoice;
}

public void setLowerLimit( int lowerLimit) {
 this.lowerLimit=lowerLimit;
}

public int getLowerLimit() {
 return lowerLimit;
}

public void setUpperLimit(int upperLimit) {
 this.upperLimit=upperLimit;
}

public int getUpperLimit() {
 return upperLimit;
}

  public boolean getSuccess() {
    return success;
  }

  public String getHint() {
    return "" + hint;
  }

public String getError() {
 return ""+error;
}

  public int getNumGuesses() {
    return numGuesses;
  }

  public void reset() {
   if (getRadio().equals("yes")) {
   answer = (int)(Math.random()*100);
  }
  else {
   int i;
   i=(int)(Math.random()*upperLimit);
   if (i<lowerLimit) {
    i=i+lowerLimit;
   }
   answer=i;
  }
  success = false;
    numGuesses = 0;
  }
}


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