狮子和计算Java题

package cn.bdqn.com;

import java.util.Scanner;

public class Jisaunqi {
    int num1;
    int num2;
    int jieguo;
    public void show(){
        Scanner input=new Scanner(System.in);
        String fuhao1=input.next();
        char fuhao2=fuhao1.charAt(0);
                
        switch(fuhao2){
        case '+':
            jieguo=num1+num2;
            break;
        case '-':
            jieguo=num1-num2;
            break;
        case '*':
            jieguo=num1*num2;
            break;
        case '/':
            jieguo=num1*num2;
        }
        System.out.println(num1+fuhao1+num2+"="+jieguo);
    }
    public static void main(String[] args) {
        Scanner input=new Scanner(System.in);
        Jisaunqi ji=new Jisaunqi();
        System.out.println("请输入第一个数");
        ji.num1=input.nextInt();
        System.out.println("请输入第二个数");
        ji.num2=input.nextInt();
        System.out.println("请输入运算符");
        ji.show();
         
        
    }

}

package cn.bdqn.com;
public class Autolion {
    String color="黄色";
    public void run(){
        System.out.println("正在以0.1米/秒的速度向前奔跑.");
        }
    public String bark(){
        String sound="大声吼叫";
        return sound;
    }
    public String getColor(){
        return color;
    }
    public String showLion(){
        return "这是一个"+getColor()+"的玩具狮子!";
    }
    public static void main(String[] args) {
        Autolion lion=new Autolion();
        String info=lion.showLion();
        System.out.println(info);
        lion.run();
        System.out.println(lion.bark());
    }

}