Here you can find the source of reverse(T[] originalArray)
public static <T> T[] reverse(T[] originalArray)
//package com.java2s; /*/*from ww w. j ava 2 s . c o m*/ * Copyright [2016] [Mannheim University of Applied Sciences] * * 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 { public static <T> T[] reverse(T[] originalArray) { T[] array = Arrays.copyOf(originalArray, originalArray.length); int indexA = 0, indexB = array.length - 1; T temp; while (indexB > indexA) { temp = array[indexB]; array[indexB] = array[indexA]; array[indexA] = temp; indexA++; indexB--; } return array; } }