/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" ); } public Animal() { System.out.println("Animal类执行了" ); } }
/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" ); } public Dog() { System.out.println("Dog类执行了" ); } }
/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(); } }
/javaDemo3/src/com/imooc/Animal.java
package com.imooc; public class Animal { public int age = 10; public String name; public void eat() { System.out.println("年龄:"+age+ "动物可以吃东西" ); } public Animal() { age = 20; System.out.println("Animal类执行了" ); } }
/javaDemo3/src/com/imooc/Initail.java
package com.imooc; public class Initail { public static void main(String[] args) { // TODO Auto-generated method stub Animal animal = new Animal(); System.out.println("animal的age:" + animal.age ); Dog dog = new Dog(); dog.age = 10; dog.name = "aa"; dog.eat(); } }