JAVA橋接模式 2013軟件設(shè)計師下半年下午題

SegmentFault 發(fā)布于2019-08-14 16:41 / 1644人閱讀

摘要：橋接模式類圖總是上傳不了本地圖片啊圖在上面鏈接畫的線畫的圓畫的線畫的圓畫長方形都沒有橋接模式標(biāo)簽啊。。。

橋接模式類圖 SF總是上傳不了本地圖片啊 ↑圖在上面鏈接↑

interface Drawing{
    public void drawLine(double x1,double y1,double x2,double y2);
    public void drawCircle(double x,double y,double r);
}

class V1Drawing implements Drawing{
    public void drawLine(double x1,double y1,double x2,double y2){DP1.draw_a_line(x1,y1,x2,y2);}
    public void drawCircle(double x,double y,double r){DP1.draw_a_circle(x, y, r);}
}
class V2Drawing implements Drawing{
    public void drawLine(double x1,double x2,double y1,double y2){DP2.drawLine(x1,y1,x2,y2);}
    public void drawCircle(double x,double y,double r){DP2.drawcircle(x, y, r);}
}

class DP1{
    static public void draw_a_line(double x1,double y1,double x2,double y2){
        System.out.println("DP1 畫的線");
    }
    static public void draw_a_circle(double x,double y,double r){
        System.out.println("DP1 畫的圓");
    }
}
class DP2{
    static public void drawLine(double x1,double y1,double x2,double y2){
        System.out.println("DP2 畫的線");
    }
    static public void drawcircle(double x,double y,double r){
        System.out.println("DP2 畫的圓");
    }
}



abstract class Shape{
    
    private Drawing _dp;
    
    public Shape(Drawing dp){
        this._dp=dp;
    }
    
    abstract public void draw();
    
    public void drawLine(double x1,double y1,double x2,double y2){
        
        this._dp.drawLine(x1,x2,y1,y2);
    }
    public void drawCircle(double x,double y,double r){this._dp.drawCircle(x,y,r);}
    
}
class Rectangle extends Shape{
    
    private double _x1,_x2,_y1,_y2;
    
    
    public Rectangle(Drawing dp,double x1,double x2,double y1,double y2){
        super(dp);
        this._x1=x1;
        this._x2=x2;
        this._y1=y1;
        this._y2=y2;
        
    }
    public void draw(){
        System.out.println("畫長方形"+this._x1+this._x2+this._y1+this._y2);
        drawLine(_x1,_x2,_y1,_y2);
        }
}
class Circle extends Shape{
    private double _x,_y,_r;
    public Circle (Drawing dp,double x,double y,double r){
        super(dp);
    }
    public void draw(){drawCircle(_x,_y,_r);}
}

public class qiaojie {
    
    public static void main(String[] args){
        V1Drawing v1=new V1Drawing();
        V2Drawing v2=new V2Drawing();
        Rectangle r1=new Rectangle(v1,1.0,2.0,3.0,4.0);
        r1.draw();
        v2.drawCircle(2.1, 4.5, 5.6);
        v2.drawLine(2.4, 3.3 ,4.2, 5.1);
    
    }    
}

都沒有橋接模式標(biāo)簽啊。。。