package ch3; public class Animal { private String name ; private String color; public Animal(String name,String color){ this.name =name; this.color =color; } public void speak(String action) { System.out.println("my name"+name+"我的颜色"+color+"\t"+action); } }
package ch3; public class Dog extends Animal { private String food; public Dog(String name,String color,String food) { super(name,color); this.food =food; } @Override public void speak(String action) { // TODO Auto-generated method stub System.out.println("喜欢"+food); } }