class Animal{
String name;
private int age;
String color;
public Animal(String name,String color,int age){
this.name = name;
this.color = color;
this.age=age;
System.out.println("Animal带参的构造函数...");
}
public Animal(){
System.out.println("Animal无参的构造函数...");
}
public void eat(){
System.out.println(color+name+"在吃...");
}
}
//鸟 鸟是属于动物中一种。
class Bird extends Animal{ // Bird 就称作为Animal的子类。 Animal 称作为Bird的父类、 超类、基类
public Bird(){
System.out.println("Bird无参的构造函数...");
}
public void fly(){
System.out.println(name+"在飞翔...");
}
}
class Demo51
{
public static void main(String[] args)
{
Bird b = new Bird();
b.name = "喜鹊";
b.color = "彩色";
b.eat();
new Bird();
new Bird();
}
}
