Here you can find the source of clone(T[] array)
Shallow clones an array returning a typecast result and handling null
.
The objects in the array are not cloned, thus there is no special handling for multi-dimensional arrays.
This method returns null
for a null
input array.
Parameter | Description |
---|---|
array | the array to shallow clone, may be <code>null</code> |
null
if null
input
public static <T> T[] clone(T[] array)
//package com.java2s; /*/*from w ww .ja v a 2s . co m*/ * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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 { /** * <p>Shallow clones an array returning a typecast result and handling * <code>null</code>.</p> * * <p>The objects in the array are not cloned, thus there is no special * handling for multi-dimensional arrays.</p> * * <p>This method returns <code>null</code> for a <code>null</code> input array.</p> * * @param array the array to shallow clone, may be <code>null</code> * @return the cloned array, <code>null</code> if <code>null</code> input */ public static <T> T[] clone(T[] array) { if (array == null) { return null; } return array.clone(); } /** * <p>Clones an array returning a typecast result and handling * <code>null</code>.</p> * * <p>This method returns <code>null</code> for a <code>null</code> input array.</p> * * @param array the array to clone, may be <code>null</code> * @return the cloned array, <code>null</code> if <code>null</code> input */ public static long[] clone(long[] array) { if (array == null) { return null; } return array.clone(); } /** * <p>Clones an array returning a typecast result and handling * <code>null</code>.</p> * * <p>This method returns <code>null</code> for a <code>null</code> input array.</p> * * @param array the array to clone, may be <code>null</code> * @return the cloned array, <code>null</code> if <code>null</code> input */ public static int[] clone(int[] array) { if (array == null) { return null; } return array.clone(); } /** * <p>Clones an array returning a typecast result and handling * <code>null</code>.</p> * * <p>This method returns <code>null</code> for a <code>null</code> input array.</p> * * @param array the array to clone, may be <code>null</code> * @return the cloned array, <code>null</code> if <code>null</code> input */ public static short[] clone(short[] array) { if (array == null) { return null; } return array.clone(); } /** * <p>Clones an array returning a typecast result and handling * <code>null</code>.</p> * * <p>This method returns <code>null</code> for a <code>null</code> input array.</p> * * @param array the array to clone, may be <code>null</code> * @return the cloned array, <code>null</code> if <code>null</code> input */ public static char[] clone(char[] array) { if (array == null) { return null; } return array.clone(); } /** * <p>Clones an array returning a typecast result and handling * <code>null</code>.</p> * * <p>This method returns <code>null</code> for a <code>null</code> input array.</p> * * @param array the array to clone, may be <code>null</code> * @return the cloned array, <code>null</code> if <code>null</code> input */ public static byte[] clone(byte[] array) { if (array == null) { return null; } return array.clone(); } /** * <p>Clones an array returning a typecast result and handling * <code>null</code>.</p> * * <p>This method returns <code>null</code> for a <code>null</code> input array.</p> * * @param array the array to clone, may be <code>null</code> * @return the cloned array, <code>null</code> if <code>null</code> input */ public static double[] clone(double[] array) { if (array == null) { return null; } return array.clone(); } /** * <p>Clones an array returning a typecast result and handling * <code>null</code>.</p> * * <p>This method returns <code>null</code> for a <code>null</code> input array.</p> * * @param array the array to clone, may be <code>null</code> * @return the cloned array, <code>null</code> if <code>null</code> input */ public static float[] clone(float[] array) { if (array == null) { return null; } return array.clone(); } /** * <p>Clones an array returning a typecast result and handling * <code>null</code>.</p> * * <p>This method returns <code>null</code> for a <code>null</code> input array.</p> * * @param array the array to clone, may be <code>null</code> * @return the cloned array, <code>null</code> if <code>null</code> input */ public static boolean[] clone(boolean[] array) { if (array == null) { return null; } return array.clone(); } }