Here you can find the source of arraycopy(long[] src, int srcPos, long[] dest, int destPos, int length)
public static void arraycopy(long[] src, int srcPos, long[] dest, int destPos, int length)
//package com.java2s; /*/* ww w . ja v a 2 s.c o m*/ * Copyright (C) 2014 Bastian Venz * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ public class Main { public static void arraycopy(long[] src, int srcPos, long[] dest, int destPos, int length) { for (int i = 0; i < length; i++) { dest[destPos + i] = src[srcPos + i]; } } public static void arraycopy(byte[] src, int srcPos, byte[] dest, int destPos, int length) { for (int i = 0; i < length; i++) { dest[destPos + i] = src[srcPos + i]; } } }