面向接口编程

package mianxiangjiekou;

public class Computer {
String brand;

public void coonnect(Usb u){
    System.out.println("获取数据："+u.getData());
}
    
}

package mianxiangjiekou;

public class Phone implements Usb {
String pic="";
public void takePicture(String name){
    pic=pic+" "+name;
}

    public String getData() {
        // TODO Auto-generated method stub
        return pic;
    }

}

package mianxiangjiekou;

public class UDisk implements Usb{
    String data;
    
    public UDisk(String data){
        this.data=data;
    }
    
    
     public String getData(){
         return this.data;
    
}
}

package mianxiangjiekou;

public interface Usb {
String getData();
}

package mianxiangjiekou;
public class Test {
    public static void main(String[] args) {
    UDisk u=new UDisk("美人鱼.mp4");
    Computer c=new Computer();
    c.coonnect(u);
    
    Phone p=new Phone();
    p.takePicture("初一拜年照.jpg");
    p.takePicture("初二吃喝照.jpg");
    p.takePicture("初三学习照.jpg");
    
    c.coonnect(p);
    }

}