package com.zcj.eg001;

public class VarChange {

    public static void main(String[] args) {

        int a = 10;

        int b = 15;

        System.out.println(a+";"+b);

        int temp = a;

        a = b;

        b = temp;

        System.out.println(a+";"+b);

        //超出 int 的值会损失精度

        a = a + b;

        b = a - b;

        a = a - b;

        System.out.println(a+";"+b);

        //一个数异或同一个数两次，结果还是那个数，而且不会超出int范围

        a = a^b;

        b = a^b;

        a = a^b;

        System.out.println(a+";"+b);

    }

}