Here you can find the source of combine(byte[] arr1, byte[] arr2)
public static byte[] combine(byte[] arr1, byte[] arr2)
//package com.java2s; /**//from w w w .ja v a 2 s . co m * Copyright (C) 2011-2017 ARM Limited. All rights reserved. * SPDX-License-Identifier: Apache-2.0 * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ public class Main { public static byte[] combine(byte[] arr1, byte[] arr2) { byte[] newArr = new byte[arr1.length + arr2.length]; System.arraycopy(arr1, 0, newArr, 0, arr1.length); System.arraycopy(arr2, 0, newArr, arr1.length, arr2.length); return newArr; } }