Here you can find the source of swap(final byte[] array, int firstIndex, int secondIndex)
static void swap(final byte[] array, int firstIndex, int secondIndex)
//package com.java2s; /*/*from www . j a va2s .co m*/ * Copyright 2017 TFA Hub Team * * 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 { static void swap(final byte[] array, int firstIndex, int secondIndex) { final byte tmp = array[firstIndex]; array[firstIndex] = array[secondIndex]; array[secondIndex] = tmp; } static void swap(final int[] array, int firstIndex, int secondIndex) { final int tmp = array[firstIndex]; array[firstIndex] = array[secondIndex]; array[secondIndex] = tmp; } static void swap(final float[] array, int firstIndex, int secondIndex) { final float tmp = array[firstIndex]; array[firstIndex] = array[secondIndex]; array[secondIndex] = tmp; } static void swap(final double[] array, int firstIndex, int secondIndex) { final double tmp = array[firstIndex]; array[firstIndex] = array[secondIndex]; array[secondIndex] = tmp; } static <T> void swap(final T[] array, int firstIndex, int secondIndex) { final T tmp = array[firstIndex]; array[firstIndex] = array[secondIndex]; array[secondIndex] = tmp; } }