public static void main(String[] args) {
/*最有效的方式算出2乘以8等于几
System.out.println(2<<3);
//对两个整数变量的值进行互换
int a=3,b=5;
/*int c;
c=a;
a=b;
b=c;*/
//面试可能,高效但阅读性差
a=a^b;//3^5
b=a^b;//(3^5)^5=3
a=a^b;//(3^5)^3=5
System.out.println("a="+a+",b="+b);
}
运行:
![](https://img.haomeiwen.com/i4519446/8f15e563775103e4.png)
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