Java tutorial
//package com.java2s; //License from project: Open Source License public class Main { public static byte[] arrayCopy(byte[] old_src, byte[] new_src) { byte[] des = new byte[old_src.length + new_src.length]; System.arraycopy(old_src, 0, des, 0, old_src.length); System.arraycopy(new_src, 0, des, old_src.length, new_src.length); return des; } }