java基础 面向对象4

public interface USB {
    public static final double length = 12;
    public static final double width = 4.5;
//输入
public void input();
//输出
public void output();
//充电
public void charge();
}

//implements是实现接口
//类实现接口，就要实现接口中所有抽象方法
public class XiaoMi implements Phone{


@Override
public void call() {
  System.out.println("小米手机打电话方式");

}


@Override
public void hold() {
  System.out.println("小米手机接电话方式");
}


@Override
public void send() {
System.out.println("小米手机发短信方式");
}


@Override
public void photo() {
System.out.println("小米手机拍照方式");

}


}

public class TestXiaoMi {
public static void main(String[] args) {
XiaoMi myxiaomi = new XiaoMi();
myxiaomi.call();
}
}