两个原素交换位置

package com.miya.algorithm.sort;

/**
 * Created by kayle on 16/9/8.
 * 交换数组两个元素位置
 */
public class Change {

    public static void main(String[] args) {

        int x = 3, y = 5;

        int[] arr = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

        test(arr, x, y);

    }

    public static void test (int[] arr, int x, int y) {
        int a = arr[x];
        int b = arr[y];
        a = a+b;
        b = a-b;
        a = a-b;
        arr[x] = a;
        arr[y] = b;

        for (int i = 0; i < arr.length; i++) {
            System.out.println(arr[i]);
        }
    }
}