Here you can find the source of swap(final Object[] values, final int firstPosition, final int secondPosition)
public static void swap(final Object[] values, final int firstPosition, final int secondPosition)
//package com.java2s; /*//from w w w . j av a2s. c om * Copyright 2016, Manuel Menezes de Sequeira. * * This code is free software: you can redistribute it and/or modify it under * the terms of the GNU General Public License as published by the Free Software * Foundation, either version 3 of the License, or (at your option) any later * version. * * This code is distributed in the hope that it will be useful, but WITHOUT ANY * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR * A PARTICULAR PURPOSE. See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along with * this code. If not, see http://www.gnu.org/licenses. */ public class Main { public static void swap(final Object[] values, final int firstPosition, final int secondPosition) { final Object temporary = values[firstPosition]; values[firstPosition] = values[secondPosition]; values[secondPosition] = temporary; } }