I want a small java program to convert a UTF-8 string to SHIFT-JIS

String shiftJIS = theUTF8String.getBytes("Shift_JIS");

sorry a little correction

String shiftJIS = new String( theUTF8String.getBytes("Shift_JIS") );

I was working on the following:

import java.io.*;
import java.lang.*;

public class strConvert{

      public String exec(){
            try{
                  String str = new String("`This is a test string`");
                  String sjisStr = new String(str.getBytes("UTF-8"), "SHIFT_JIS");
                  return sjisStr;
            } catch (Exception e){
                         //return e;
                  return "0";
                 }
      }

}


but i always get back 0

You should print your exception...

          } catch (Exception e){
                      //return e;
               e.printStackTrace() ;
               return "0";
               }

what is ur JDK version? if JDK 1.4.2 make sure that the jar ( {urJDKHome/jre/lib/charsets.jar) is in ur classpath

OK, modified my program to:

import java.io.*;
import java.lang.*;

public class strConvert{
      public String exec(){
            try{
                  String str = new String("`This is a test string`");
                  String shiftJIS = new String(str.getBytes("Shift_JIS"));
                  return shiftJIS;
            }catch (Exception e){
                  //return e;
                  e.printStackTrace() ;
                  return "0";
               }
      }
}

and i get  "java.io.UnsupportedEncodingException: SJIS"

my JDK is j2sdk1.4.2_06

My CLASSPATH =  C:\j2sdk1.4.2_06\bin

>> My CLASSPATH =  C:\j2sdk1.4.2_06\bin
I think u mean that this is ur PATH not CLASSPATH, please run ur java application like this :

java -cp %CLASSPATH%;C:\j2sdk1.4.2_06\jre\lib strConvert

or better:
java -cp .;C:\j2sdk1.4.2_06\jre\lib;%CLASSPATH% strConvert

OK, maybe I have some other issues here.

I am calling this java program from ColdFusion application server.

I instantiate the java object and call the exec() method.  Then output the results of the method call.

Im my windows environment variables, I have a variable names CLASSPATH with a value of C:\j2sdk1.4.2_06\bin

Do I need to make some changes?  The program compiles fine, but I get the above java exception when I run the program from ColdFusion.

Cold Fusion is using  java.home=C:/Java/j2re1.4.2_05 - which is also on my windows machine.

ok append to ur classpath c:\j2sdk1.4.2_06\lib;c:\j2sdk1.4.2_06\jre\lib

still getting "java.io.UnsupportedEncodingException: SJIS" in the thread output....?

could u please run this command and get the us the result:


echo %CLASSPATH%

result is: C:\Java\j2re1.4.2_05\lib

did I do something wrong when I edited the CLASSPATH environment varaiable in windows?

make sure that u edit CLASPATH in the System enviroment variables (not user enviroment variable) and their is no CLASSPATH variable in the user enviroment variables that overwrites

There is no User variable for CLASSPATH - and only one in SYSTEM.  That is the one i (first created) and edited.

can u post me the Enviroment variable u set, the enviroment name and value

OK, changed ColdFusion to not use a specific JVM - the program is no longer throwing an exception.

Now - how do i modify this:

import java.io.*;
import java.lang.*;

public class strConvert{

      public String exec(){
            try{
                  String str = new String("`This is a test string`");
                  String shiftJIS = new String(str.getBytes("Shift_JIS"));
                  return shiftJIS;
            }catch (Exception e){
                  //return e;
                  e.printStackTrace() ;
                  return "0";
               }
      }

}

to take an input of type String - the string to be converted from UTF-8 to SHIFT_JIS?

actually - "return new String( value.getBytes(targetEncoding) );"

Thank you very much - that worked!

welcome :-)