Java Array Copy arrayCopy(int[] array, int i0, int n, boolean isReverse)

Description

array Copy

License

Open Source License

Declaration

public static int[] arrayCopy(int[] array, int i0, int n, boolean isReverse) 

Method Source Code

//package com.java2s;
/* $RCSfile$//  w  w  w .  j a v a2 s  .  c  o m
 * $Author: egonw $
 * $Date: 2005-11-10 09:52:44 -0600 (Thu, 10 Nov 2005) $
 * $Revision: 4255 $
 *
 * Copyright (C) 2003-2005  The Jmol Development Team
 *
 * Contact: jmol-developers@lists.sf.net
 *
 *  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 St, Fifth Floor, Boston, MA 02110-1301 USA.
 */

public class Main {
    public static int[] arrayCopy(int[] array, int i0, int n, boolean isReverse) {
        if (array == null)
            return null;
        int oldLength = array.length;
        if (n == -1)
            n = oldLength;
        if (n == -2)
            n = oldLength / 2;
        n = n - i0;
        int[] t = new int[n];
        System.arraycopy(array, i0, t, 0, n);
        if (isReverse)
            for (int i = n / 2; --i >= 0;)
                swap(t, i, n - 1 - i);
        return t;
    }

    public static void swap(int[] array, int indexA, int indexB) {
        int t = array[indexA];
        array[indexA] = array[indexB];
        array[indexB] = t;
    }
}

Related

1. arraycopy(char[] A1, int offset1, char[] A2, int offset2, int length)
2. arrayCopy(char[] chars)
3. arrayCopy(double[][] src)
4. arrayCopy(final byte[] src, final byte[] dest)
5. arrayCopy(final float[] arrayToCopy)
6. arrayCopy(int[] array, int length)
7. arrayCopy(int[] x)
8. arrayCopy(int[][] source, int[][] destination)
9. arraycopy(long src[], int srcOffset, long dest[], int destOffset, int limit)