JAVA

J2ME and Unicode

If you've ever run into problems faced with multi-lingual text differences, Jason's latest article will solve just that. Learn how to make use of Unicode character-sets when developing in a J2ME-based environment, where you'll more than likely have a need to develop MIDlets in multiple languages.

Author Info:

By: Jason Lam

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December 26, 2003

TABLE OF CONTENTS:

· J2ME and Unicode
· Enabling the J2ME Emulator with Unicode
· Simple Unicode Test
· Read Unicode File
· Reading a Text File with Unicode Codes
· Conclusion

J2ME and Unicode - Read Unicode File
(Page 4 of 6 )

The next step in module code separation would be to load language definitions from an external source. One option would be to read in language definitions from a text file, more appropriately a Unicode file. Here is a method you can use to read a Unicode text file:

To create a test file you can use the free application, Simredo, from http://www4.vc-net.ne.jp/~klivo/sim/simeng.htm

   public String readUnicodeFile(String filename) {
     StringBuffer buffer = null;
     InputStream is = null;
     InputStreamReader isr = null;
     try {
       Class c = this.getClass();
       is = c.getResourceAsStream(filename);
       if (is == null)
         throw new Exception("File Does Not Exist");

       isr = new InputStreamReader(is,"UTF8");

       buffer = new StringBuffer();
       int ch;
       while ((ch = isr.read()) > -1) {
         buffer.append((char)ch);
       }
       if (isr != null)
         isr.close();
     } catch (Exception ex) {
       System.out.println(ex);
     }
     return buffer.toString();
   }