- public class Ch01 {
- public static void main(String[] args) {
- Dog d1=new Dog("憨憨",2,1.28);
- Dog d2=new Dog("球球",1,1.35);
- Cat c1=new Cat("咪咪",3,0.95);
- d1.showProfile();
- d2.showProfile();
- c1.showProfile();
- }
- }
- class Animal
- {
- String name;
- int age;
- double weight;
- Animal(String n,int a, double w)
- {
- name=n;
- age=a;
- weight=w;
- }
- void showProfile()
- {
- System.out.printf("%s今年%d歲,體重%.2f公斤%n",name,age,weight);
- }
- }
- class Dog extends Animal
- {
- Dog(String n,int a,double w)
- {
- super(n,a,w);
- }
- }
- class Cat extends Animal
- {
- Cat(String n,int a,double w)
- {
- super(n,a,w);
- }
- }
複製代碼 |