- class Ch72
- {
- public static void main(String args[])
- {
- Dog d1=new Dog("5643545345",-12342132,2e-10),d2=new Dog("A",200,2.434e-30);
- d1.showProfile();
- d2.showProfile();
- Cat c=new Cat("€",-2,0.000000000001);
- c.showProfile() ;
- }
- }
- class Animal
- {
- String name;
- int age;
- double w;
- Animal(String n,int a,double w)
- {
- name=n;
- age=a;
- this.w=w;
- }
- void showProfile()
- {
- System.out.println(name+"今年"+age+"歲,體重"+w+"公斤");
- }
- }
- 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 |