2024.12.9

 

ublic class Main{

    public static void main(String[] args) {

        IgoChessman black1,black2,black3,white1,white2;

        IgoChessmanFactory factory;

        factory = IgoChessmanFactory.getInstance();

        black1 = factory.getIgoChessman("b");

        black2 = factory.getIgoChessman("b");

        black3 = factory.getIgoChessman("b");

        System.out.println("判断两颗黑棋是否相同："+(black1==black2));

 

        white1 = factory.getIgoChessman("w");

        white2 = factory.getIgoChessman("w");

        System.out.println("判断两颗白棋是否相同："+(white1==white2));

 

        black1.locate(new Coordinates(1, 1));

        black2.locate(new Coordinates(2, 4));

        black3.locate(new Coordinates(2, 3));

        white1.locate(new Coordinates(3, 5));

        white2.locate(new Coordinates(2, 6));

    }

 

}

public class Coordinates {

    private int x;

    private int y;

 

    public Coordinates(int x,int y) {

        // TODO Auto-generated constructor stub

        this.x = x;

        this.y = y;

    }

 

    public int getX() {

        return x;

    }

 

    public void setX(int x) {

        this.x = x;

    }

 

    public int getY() {

        return y;

    }

 

    public void setY(int y) {

        this.y = y;

    }

}

public abstract class IgoChessman {

    public abstract String getColor();

    public void locate(Coordinates coord){

        System.out.println("棋子颜色："+this.getColor()+",棋子位置："+coord.getX()+","+coord.getY());

    }

}

class BlackIgoChessman extends IgoChessman{

 

    @Override

    public String getColor() {

        return "黑色";

    }

}

class WhiteIgoChessman extends IgoChessman{

    @Override

    public String getColor() {

        return "白色";

    }

 

}

public class IgoChessmanFactory {

    private static IgoChessmanFactory instance = new IgoChessmanFactory();

    private static Hashtable ht;

 

    public IgoChessmanFactory() {

        ht = new Hashtable();

        IgoChessman black,white;

        black = new BlackIgoChessman();

        ht.put("b", black);

        white = new WhiteIgoChessman();

        ht.put("w", white);

    }

 

    public static IgoChessmanFactory getInstance(){

        return instance;

    }

 

    public static IgoChessman getIgoChessman(String color){

        return (IgoChessman)ht.get(color);

    }

}

IgoChessman为抽象享原类

BlackIgoChessman为具体享元类

WhiteIgoChessman为具体享元类

IgoChessmanFactory为享元工厂类