题解 | #简单运算#

import java.util.Scanner;
import java.io.PrintStream;
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (true) {
            int a = scanner.nextInt();
            int b = scanner.nextInt();
            //判断输入条件
            if (a < 0 || b < 0) {
                System.out.println("输入有误");
            } else {
                // 使用三元运算符，并用括号包围整个表达式
                PrintStream printStream = (a > b) ? System.out.printf("%d %d %d %d %d", a + b,
                                          a - b, a * b, a / b, a % b) : System.out.printf("%d %d %d %d %d", a + b, b - a,
                                                  a * b, b / a, b % a);
                break;
            }
        }



    }
}