![clipboard.png clipboard.png](https://image-static.segmentfault.com/323/954/323954385-5c46c395d3299_articlex)
重写前
![clipboard.png clipboard.png](https://image-static.segmentfault.com/885/844/885844347-5c46c3ace1d96_articlex)
/javaDemo3/src/com/imooc/Animal.java
package com.imooc;
public class Animal {
public int age;
public String name;
public void eat() {
System.out.println("年龄:"+age+ "动物可以吃东西" );
}
}
/javaDemo3/src/com/imooc/Dog.java
package com.imooc;
public class Dog extends Animal {
}
/javaDemo3/src/com/imooc/Initail.java
package com.imooc;
public class Initail {
public static void main(String[] args) {
// TODO Auto-generated method stub
Dog dog = new Dog();
dog.age = 10;
dog.name = "aa";
dog.eat();
}
}
![clipboard.png clipboard.png](https://image-static.segmentfault.com/268/901/2689010814-5c46c3ea7723f_articlex)
重写后
/javaDemo3/src/com/imooc/Dog.java
package com.imooc;
public class Dog extends Animal {
public void eat() {
System.out.println("年龄:"+age+ "狗可以吃东西" );
}
}
![clipboard.png clipboard.png](https://image-static.segmentfault.com/171/680/1716807196-5c46c40b5dbc8_articlex)