Here you can find the source of arrayCopy(byte[] src, int srcOffset, byte[] target, int targetOffset, int length)
public static byte[] arrayCopy(byte[] src, int srcOffset, byte[] target, int targetOffset, int length)
//package com.java2s; /*/*w w w . java2 s . c o m*/ * Copyright 2015 Evgeny Dolganov (evgenij.dolganov@gmail.com). * * 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[] arrayCopy(byte[] src, int srcOffset, byte[] target, int targetOffset, int length) { System.arraycopy(src, srcOffset, target, targetOffset, length); return target; } }