Java tutorial
//package com.java2s; //License from project: Apache License import java.io.*; public class Main { public static final String ENCODING = "UTF-8"; public static byte[] charArrayToByteArray(char[] buffer) { try { ByteArrayOutputStream baos = new ByteArrayOutputStream(); OutputStreamWriter out = new OutputStreamWriter(baos, ENCODING); Reader reader = new CharArrayReader(buffer); for (int ch; (ch = reader.read()) != -1;) { out.write(ch); } return baos.toByteArray(); } catch (Exception ex) { return null; } } }