多重catch语句的使用

package com.lk.classTest;

import java.util.InputMismatchException;
import java.util.Scanner;
/**
 * @author:Melirn
 * @e-mail:2227287556@qq.com
 * @date:2021.5.6
 */
public class two {
    public static void main(String[] args) {
        try {
            Scanner input = new Scanner(System.in);
            System.out.println("请输入被除数");
            int num1 = input.nextInt();
            System.out.println("请输入除数");
            int num2 = input.nextInt();
            System.out.println(String.format("%d/%d=%d",num1,num2,num1/num2));
            System.out.println("感谢使用本程序");
        }catch (InputMismatchException e){
            System.err.println("出现错误:被除数和除数必须是整数");
        }catch (ArithmeticException e){
            System.err.println("出现错误:除数不能为零");
        }catch (Exception e){
            System.err.println("其他未知异常");
        }finally {
            System.out.println("感谢使用本程序");
        }

    }

}