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From "minglaing ma (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FREEMARKER-102) ${float?string('0.##;; roundingMode=halfUp')}
Date Wed, 08 Aug 2018 08:13:00 GMT
minglaing ma created FREEMARKER-102:
---------------------------------------

             Summary: ${float?string('0.##;; roundingMode=halfUp')}
                 Key: FREEMARKER-102
                 URL: https://issues.apache.org/jira/browse/FREEMARKER-102
             Project: Apache Freemarker
          Issue Type: Bug
    Affects Versions: 2.3.28
            Reporter: minglaing ma


java

Configuration configuration = new Configuration(Configuration.VERSION_2_3_28);
 configuration.setClassForTemplateLoading(new Main().getClass(), "/jigndu");
 Template template = configuration.getTemplate("index.ftl");

Map<Object,Object> root =new HashMap<Object, Object>();
 root.put("float", 172.525f);
 Writer out =new OutputStreamWriter(System.out);
 template.process(root, out);

 

ftl

${float?string('0.##;; roundingMode=halfUp')}

 

output

172.52

 

I think 172.53 is right

 

the reason is 
[java|eclipse-javadoc:%E2%98%82=myfreemarker/D:%5C/Java%5C/jdk1.8.0_45_64%5C/jre%5C/lib%5C/rt.jar%3Cjava].[text|eclipse-javadoc:%E2%98%82=myfreemarker/D:%5C/Java%5C/jdk1.8.0_45_64%5C/jre%5C/lib%5C/rt.jar%3Cjava.text].NumberFormat  format
method   param is a double,now i use a float。
when float to double wrong,i  think
 
freemarker.core.JavaTemplateNumberFormat.format  method should
 
if (number instanceof Float)
 {
 return javaNumberFormat.format(new BigDecimal(String.valueOf(number)));
 }
 return javaNumberFormat.format(number);
 

 



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