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());
    }
 
}