Java设计模式中的桥接模式

public interface Brand {
    void open();
    void close();
    void call();
}

public class XiaoMi implements Brand {
    @Override
    public void open() {
        System.out.println("小米手机开机");
    }
    @Override
    public void close() {
        System.out.println("小米手机关机");
    }
    @Override
    public void call() {
        System.out.println("小米手机打电话");
    }
}

public class Vivo implements Brand{
    @Override
    public void open() {
        System.out.println("Vivo手机开机");
    }
    @Override
    public void close() {
        System.out.println("Vivo手机关机");
    }
    @Override
    public void call() {
        System.out.println("Vivo手机打电话");
    }
}

public abstract class Phone {
    private Brand brand;
    public Phone(Brand brand) {
        this.brand = brand;
    }
    protected void open(){
        this.brand.open();
    }
    protected void close(){
        this.brand.close();
    }
    protected void call() {
        this.brand.call();
    }
}

public class FoldedPhone extends Phone{

    public FoldedPhone(Brand brand) {
        super(brand);
    }
    @Override
    protected void open() {
        super.open();
        System.out.println("折叠样式手机");
    }
    @Override
    protected void close() {
        super.close();
        System.out.println("折叠样式手机");
    }
    @Override
    protected void call() {
        super.call();
        System.out.println("折叠样式手机");
    }
}

public class UpRightPhone extends Phone {
    public UpRightPhone(Brand brand) {
        super(brand);
    }
    @Override
    protected void open() {
        super.open();
        System.out.println("直立样式手机");
    }
    @Override
    protected void close() {
        super.close();
        System.out.println("直立样式手机");
    }
    @Override
    protected void call() {
        super.call();
        System.out.println("直立样式手机");
    }
}

public class Client {

    public static void main(String[] args) {
        Phone foldedPhone = new FoldedPhone(new XiaoMi());
        Phone upRightPhone = new UpRightPhone(new Vivo());
        foldedPhone.close();
        foldedPhone.open();
        foldedPhone.call();
        System.out.println("===============");
        upRightPhone.close();
        upRightPhone.open();
        upRightPhone.call();
    }
}