java交换两个变量的值

可以通过一个临时变量来实现两个变量的值交换，代码如下：

int a = 5;
int b = 10;
int temp = a;
a = b;
b = temp;
System.out.println("a = " + a + ", b = " + b);

输出结果为：a = 10, b = 5