swap two array element - Java Collection Framework

Java examples for Collection Framework:Array Element

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Description

swap two array element

Demo Code

/* --------------------------------------------------------===
 * TradeManager : An application to trade strategies for the Java(tm) platform
 * --------------------------------------------------------===
 *
 * (C) Copyright 2011-2011, by Simon Allen and Contributors.
 *
 * Project Info:  org.trade//from  w  w  w.  j a  va  2 s. c  om
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This library 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 Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 * [Java is a trademark or registered trademark of Oracle, Inc.
 * in the United States and other countries.]
 *
 * (C) Copyright 2011-2011, by Simon Allen and Contributors.
 *
 * Original Author:  Simon Allen;
 * Contributor(s):   -;
 *
 * Changes
 * -------
 *
 */
//package com.book2s;

public class Main {
    public static void main(String[] argv) {
        int i = 42;
        int j = 42;
        String[] index = new String[] { "1", "abc", "level", null,
                "book2s.com", "asdf 123" };
        swap(i, j, index);
    }

    /**
     * Method swap.
     * 
     * @param i
     *            int
     * @param j
     *            int
     * @param index
     *            String[]
     */
    private static void swap(int i, int j, String[] index) {
        String tmp = index[i];

        index[i] = index[j];
        index[j] = tmp;
    }
}

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