Java 初始 多态

什么是多态

简单的来说就是具有多种形态的能力的特征

package ten;

public interface Day1 {
public void ring();
}







package ten;

public class Day2 extends Day3 implements Day4,Day1 {

	@Override
	public void openlock() {
		// TODO Auto-generated method stub
		System.out.println("...............");
	}

	@Override
	public void getlock() {
		// TODO Auto-generated method stub
		System.out.println("...............");
	}

	@Override
	public void open() {
		// TODO Auto-generated method stub
		System.out.println("...............");
	}

	@Override
	public void close() {
		// TODO Auto-generated method stub
		System.out.println("...............");
	}

	@Override
	public void ring() {
		// TODO Auto-generated method stub
		System.out.println("..........25646+.....");
	}

}






package ten;

public abstract class Day3 {
	//开门
public abstract void open ();
//关门
public abstract void close();
}









package ten;

public interface  Day4 {
	//开锁
public void openlock();
//上锁
public void getlock();
}








package ten;

public class luge {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
			Day2 d = new Day2();
			d.getlock();
			d.open();
			d.openlock();
			d.close();
			d.ring();
	}

}