题解 | 交换变量值

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt();
        int b = scanner.nextInt();

        //write your code here.......
        a = (a+b)-(b=a);
        

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

比较普通的一道a，b互换题目，通过括号的优先运算规则可以得出正确答案