Here you can find the source of clone(Object[] source)
public static Object[] clone(Object[] source)
//package com.java2s; /*//from w ww . j ava 2 s . com * Copyright 2010 Sean Laurent * * 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 Object[] clone(Object[] source) { if (source == null) { return null; } Object[] dest = new Object[source.length]; for (int i = 0; i < source.length; i++) { dest[i] = source[i]; } return dest; } public static int[] clone(int[] source) { if (source == null) { return null; } int[] dest = new int[source.length]; for (int i = 0; i < source.length; i++) { dest[i] = source[i]; } return dest; } }