桥接模式 -- 设计模式

桥接（Bridge）是用于把抽象化与实现化解耦，使得二者可以独立变化。

思考: 其实就是把实现化的部分独立出来作为接口给其他类来实现, 然后通过use的关系来完成实现化的多样化, 使用红色的API就是红色的, 使用绿色的API就是绿色的

package day0317.BridgePattern;

import java.util.Scanner;

public class BridgePatternDemo{

    public static void main(String[] args){
        Circle redCircle = new Circle(0, 0, 10, new RedCircle());
        System.out.println(redCircle.draw());

    }

}

abstract class Shape{

    protected DrawAPI drawAPI;

    public Shape(DrawAPI drawAPI){
        this.drawAPI = drawAPI;
    }

    abstract String draw();
}

class Circle extends Shape {
    int x, y, radius;

    public Circle(int x, int y, int z, DrawAPI drawAPI){
        super(drawAPI);
    }

    @Override
    String draw(){
        return super.drawAPI.drawCircle(this.x, this.y, this.radius);
    }
}

interface DrawAPI{
    String drawCircle(int x, int y, int radius);
}

class RedCircle implements DrawAPI{

    @Override
    public String drawCircle(int x, int y, int radius){
        return String.format("Drawing a cirle(%s, %s, radius: %s), filling with red color%n", x, y, radius);
    }

}

class GreenCircle implements DrawAPI{

    @Override
    public String drawCircle(int x, int y, int radius){
        return String.format("Drawing a cirle(%s, %s, radius: %s), filling with green color%n", x, y, radius);
    }

}

class BissnessDemo{

}

interface Gang {
    void killPeople();
}

class DragonBang implements Gang{

    @Override
    public void killPeople(){
        System.out.println("use knife kill people");
    }
}

class TigerBang implements Gang{

    @Override
    public void killPeople(){
        System.out.println("use axe kill people");
    }
}
abstract class AbstractBissness {
    Gang gang;
    abstract void killPeople();
}

class GuangMingCorp extends AbstractBissness{

    @Override
    void killPeople(){

        System.out.println("你接受100万的拆迁费吗?");

        Scanner scanner = new Scanner(System.in);
        String anwser = scanner.next();
        if ("yes".equalsIgnoreCase(anwser)) {
            return;
        } else {
            super.gang.killPeople();
        }
    }
}


class HeiAnCorp extends AbstractBissness{

    @Override
    void killPeople(){

        System.out.println("你给不给我一百万?");

        Scanner scanner = new Scanner(System.in);
        String anwser = scanner.next();
        if ("yes".equalsIgnoreCase(anwser)) {
            return;
        } else {
            super.gang.killPeople();
        }
    }
}