- public class Ch01 {
- public static void main(String[] args) {
- Dog d1=new Dog("憨憨",2,1.28,"棕色");
- Dog d2=new Dog("球球",1,1.35,"白色");
- Cat c1=new Cat("咪咪",3,0.95);
- d1.showProfile();
- d1.makeSound(2);
- d2.showProfile();
- d2.makeSound(3);
- c1.showProfile();
- c1.makeSound(5);
- }
- }
- 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
- {
- String color;
- Dog(String n,int a,double w,String c)
- {
- super(n,a,w);
- color=c;
- }
- void makeSound(int x)
- {
- for(int i=1;i<=x;i++)
- System.out.print("汪~");
- System.out.println();
- }
- void showProfile()
- {
- System.out.printf("%s今年%d歲,體重%f公斤,毛色為%s%n",name,age,weight,color);
- }
- }
- class Cat extends Animal
- {
- Cat(String n,int a,double w)
- {
- super(n,a,w);
- }
- void makeSound(int x)
- {
- for(int i=1;i<=x;i++)
- System.out.print("喵~");
- System.out.println();
- }
- }
複製代碼 |