/**
 * @author WanJl
 * @version 1.0
 * @title HomeWork05
 * @description  7月14日课后作业-简易计算器
 * @create 2026/7/15
 */
public class HomeWork05 {
    public static void main(String[] args) {
        int a=15,b=20;
        char operator='/';
        if (operator=='+'){
            System.out.println(a+b);
        }else if (operator=='-'){
            System.out.println(a-b);
        }else if (operator=='*'){
            System.out.println(a*b);
        }else if (operator=='/'){
            if (b==0){
                System.out.println("除数不能为0");
            }
            System.out.println(a/b);
        }else if (operator=='%'){
            if (b==0){
                System.out.println("除数不能为0");
            }
            System.out.println(a%b);
        }
    }
}