关于两个值的交换

关于两个值的交换还有一种方法，但是本人能力有限不能解释！我会在最下面给出代码，谁会的话可以解释一下原理！

public class Dome04{public static void main(String[] agrs){int a=3;//经典的a b值交换int c;int b=4;System.out.println(" a = " + a + ",b = " + b);c = a;a = b;b = c;System.out.println(" a = " + a + ",b = " + b);System.out.println("-------------------------------"); a = 3;  //因为上面已经定义过了a和b，现在再定义运行时就会报错了！ b = 4;System.out.println(" a = " + a + ",b = " + b);a = a + b;b = a - b;                                  //简单的数学技巧a = a - b;System.out.println(" a = "+ a  + ",b = " + b);}}

我只把交换的代码写一下吧，定义和上面的一样:

a = a^b;

b = a^b;

a = b^a;