面向对象练习

package Zuoye;
public class Demo {

     String name;
     int age;  //私有属性，只能在当前类中调用
     int weight;

public Demo(){

}

public Demo(String name,int age,int weight){

this.name = name;

this.age = age;

this.weight = weight;

}

    public void eat(){
        System.out.println("吃奥利给");
    }

    public void play(){
        System.out.println("玩奥利给");
    }

    public void show(){
        System.out.println("name:" +this.name);
        System.out.println("age:" +this.age);
        System.out.println("weight:" +this.weight);
    }
 

public static void main(String[] args){

Deno demo = new Demo();

demo.name = "精神顺";

demo.age = 18;

demo.weight = 130;

demo.show();

}

}