Here you can find the source of copyArray(T[] original)
public static <T> T[] copyArray(T[] original)
//package com.java2s; /*-------------------------------------------------------------------------+ | | | Copyright 2005-2011 The ConQAT Project | | | | 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. | +-------------------------------------------------------------------------*/ import java.util.Arrays; public class Main { /**/*w w w . j ava 2s.com*/ * Copy an array. This is a shortcut for * {@link Arrays#copyOf(Object[], int)} that does not require to specify the * length. */ public static <T> T[] copyArray(T[] original) { return Arrays.copyOf(original, original.length); } }