不知道哪里错了，请大神帮忙指出

源自：9-1 Java 中的继承

不知道哪里错了，请大神帮忙指出

public class jicheng {
   public static void main(String args[]){
       rabbit b1=new rabbit("兔子");
       tiger b2=new tiger("老虎");
       b1.print();
       b1.eat();
       b1.sleep;
       System.out.println("");
       b2.print();
       b2.eat();
       b2.sleep();
   }

}
class animal{
   protected String name;
   public void eat(){
       System.out.println("吃啊");
   }
   public void sleep(){
       System.out.println("睡觉");
   }
}
class rabbit extends animal{
   public rabbit(String name){
       this.name=name;
   }
   public void eat(){
       System.out.println("吃草");
   }
   public void sleep(){
       System.out.println("睡觉");
   }
}
class tiger extends animal{
   public tiger(String name){
       this.name=name;
   }
   public void eat(){
       System.out.println("吃肉");
   }
   public void sleep(){
       System.out.println("睡觉");
   }
}

提问者：木槿花半夏如烟0 2016-05-27 18:37

个回答

慕码人6349566: 2016-05-27 23:05:15

已采纳

public class jicheng {
    public static void main(String args[]){
        rabbit b1=new rabbit("兔子");
        tiger b2=new tiger("老虎");
        //要打印出动物名字，需要获取name
        System.out.println(b1.name);
        b1.eat();
        b1.sleep();
        System.out.println("");
        System.out.println(b2.name);
        b2.eat();
        b2.sleep();
    }

}
class animal{
    protected String name;
    public void eat(){
        System.out.println("吃啊");
    }
    public void sleep(){
        System.out.println("睡觉");
    }
}
class rabbit extends animal{
    public rabbit(String name){
        this.name=name;
    }
    public void eat(){
        System.out.println("吃草");
    }
    public void sleep(){
        System.out.println("睡觉");
    }
}
class tiger extends animal{
    public tiger(String name){
        this.name=name;
    }
    public void eat(){
        System.out.println("吃肉");
    }
    public void sleep(){
        System.out.println("睡觉");
    }
}

木槿花半夏如烟0

2016-05-28 13:13:58

哦哦，对了额，谢谢啊

0
木槿花半夏如烟0

2016-05-27 21:34:44

输出的结果是兔子吃草睡觉，老虎吃肉睡觉，可是运行结果不对，把这个b1.print();删除后也还是不行，是怎么回事啊，求大神解答

0
qq_卟懂_03360209

2016-05-27 18:57:11

package guqingtong;

public class HelloWorld {
public static void main(String args[]){
rabbit b1=new rabbit("兔子");
tiger b2=new tiger("老虎");

b1.eat();
b1.sleep();
System.out.println("");

b2.eat();
b2.sleep();
}

}
class animal{
protected String name;
public void eat(){
System.out.println("吃啊");
}
public void sleep(){
System.out.println("睡觉");
}
}
class rabbit extends animal{
public rabbit(String name){
this.name=name;
}
public void eat(){
System.out.println("吃草");
}
public void sleep(){
System.out.println("睡觉");
}
}
class tiger extends animal{
public tiger(String name){
this.name=name;
}
public void eat(){
System.out.println("吃肉");
}
public void sleep(){
System.out.println("睡觉");
}
}
//b1.print();这个方法你没有定义啊，怎么调用

0