结构型模式 --- 桥接模式

将抽象与实现分离，使它们可以独立变化。它是用组合关系代替继承关系来实现，从而降低了抽象和实现这两个可变维度的耦合度

就是将2种抽象桥接起来 从而实现2中实现类的组合和随意扩展

package study.org;


public class Demo {
    public static void main(String[] args) {
        Phone phone = new Huawei();
        Style style = new AStyle(phone);
        style.draw();
        style.phone.open();
    }
}


interface Phone {
    void open();
}

class Huawei implements Phone {
    @Override
    public void open() {
        System.out.println("Huawei open");
    }
}

class Xiaomi implements Phone {
    @Override
    public void open() {
        System.out.println("Xiaomi open");
    }
}

abstract class Style {
    protected Phone phone;
    
    public Style(Phone phone) {
        this.phone = phone;
    }
    
    public abstract void draw();
}

class AStyle extends Style{

    public AStyle(Phone phone) {
        super(phone);
    }

    @Override
    public void draw() {
        System.out.println("AStyle draw");
    }
}