Java Array Swap swap(int[] arr, int a, int b)

Description

Swaps two elements of an array.

License

Open Source License

Parameter

Parameter	Description
arr	The array whose elements to swap.
a	The index of the first element.
b	The index of the second element.

Declaration

public static void swap(int[] arr, int a, int b) 

Method Source Code

//package com.java2s;
/**/*w ww  .java2 s  .  c  om*/
 * Java Modular Image Synthesis Toolkit (JMIST)
 * Copyright (C) 2008-2013 Bradley W. Kimmel
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

public class Main {
    /**
     * Swaps two elements of an array.
     * @param arr The array whose elements to swap.
     * @param a The index of the first element.
     * @param b The index of the second element.
     */
    public static void swap(int[] arr, int a, int b) {
        int temp = arr[a];
        arr[a] = arr[b];
        arr[b] = temp;
    }

    /**
     * Swaps two elements of an array.
     * @param arr The array whose elements to swap.
     * @param a The index of the first element.
     * @param b The index of the second element.
     */
    public static void swap(float[] arr, int a, int b) {
        float temp = arr[a];
        arr[a] = arr[b];
        arr[b] = temp;
    }

    /**
     * Swaps two elements of an array.
     * @param arr The array whose elements to swap.
     * @param a The index of the first element.
     * @param b The index of the second element.
     */
    public static void swap(double[] arr, int a, int b) {
        double temp = arr[a];
        arr[a] = arr[b];
        arr[b] = temp;
    }
}

Related

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5. swap(int[] a, int i, int j)
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7. swap(int[] arr, int a, int b, int c, int d, int key)
8. swap(int[] arr, int i, int j)
9. swap(int[] array)