how to encode double to a Base64 string

["Sye, Karin" <ka...@lmco.com>]

Hi,

  I'm having problems to save doubles into my xml file as Base64 encoding
strings.
  The source code and  error messages are attached below.   Can someone
point
  out to me what's been done wrong in the source code?  Thanks for the help.

karin



    try {
      ByteArrayOutputStream byteOut = new ByteArrayOutputStream();;
      DataOutputStream out = new DataOutputStream(byteOut);
     
      double d = 1.1;
      out.writeDouble(d);
	out.flush();
	byte[] buf  = byteOut.toByteArray();
      System.out.println(buf.length);
      byte[] buf2 = (new Base64()).encode(buf);
    } catch (Exception e) {
      e.printStackTrace();
    }

     
       8 
       java.lang.ArrayIndexOutOfBoundsException
        at org.apache.xerces.utils.Base64.encode(Base64.java, Compiled Code)
        at byteTest.main(byteTest.java:18)