Java tutorial
//package com.java2s; //License from project: Apache License import java.util.Arrays; public class Main { public static <T> T[] concatArray(T[] array1, T[] array2) { if (array1 == null || array1.length == 0) { return array2; } if (array2 == null || array2.length == 0) { return array1; } T[] result = Arrays.copyOf(array1, array1.length + array2.length); System.arraycopy(array2, 0, result, array1.length, array2.length); return result; } }