越努力，越幸运
public class TestApplyInterface {
public static void main(String[] args) {
Dog dog = new Dog();
dog.swim();
dog.run();
}
}
abstract class Animal{
String breed;
int age;
String sex;
public abstract void eat();
public abstract void sleep();
}
class Dog extends Animal implements Runnable , Swimmable{
String furcolor;
public void eat(){}
public void sleep(){}
public void run(){
System.out.println("狗在狂奔。。。");
}
public void swim(){
System.out.println("狗在游");
}
}
class Cat extends Animal implements Runnable{
String furcolor;
public void eat(){}
public void sleep(){}
public void run(){
System.out.println("猫在跑");
}
}
class Fish extends Animal implements Swimmable{
public void eat(){}
public void sleep(){}
public void swim(){
System.out.println("鱼在游");
}
}
class Bird extends Animal implements Flyable{
String furcolor;
public void eat(){}
public void sleep(){}
public void fly(){
System.out.println("鸟在飞");
}
}
interface Runnable {
void run();
}
interface Swimmable{
void swim();
}
interface Flyable{
void fly();
}