java入门第二季–继承–java中的方法重写

java中的方法重写

重写前

/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();
}

}

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” );
}
}