设计模式实验12实验13

package test12;

public class Memory {
    public void check(){
        System.out.println("内存自检");
    }
}


package test12;

public class HardDisk {
    public void read(){
        System.out.println("硬盘读取");
    }
}


package test12;

public class CPU {
    public void run(){
        System.out.println("CPU运行");
    }
}


package test12;

public class OS {
    public void load(){
        System.out.println("操作系统的载入");
    }
}

package test12;

public class Mainframe {
    private Memory memory;
    private CPU cpu;
    private HardDisk hardDisk;
    private OS os;

    public Mainframe() {
        memory=new Memory();
        cpu=new CPU();
        hardDisk=new HardDisk();
        os=new OS();
    }

    public void on(){
        System.out.println("计算机开机。。。");
        memory.check();
        cpu.run();
        hardDisk.read();
        os.load();
        System.out.println("计算机开机成功");
    }
}

package test12;

public class Client {
    public static void main(String[] args) {
        Mainframe mainframe=new Mainframe();
        mainframe.on();
    }
}

package test13;

// 享元接口
interface ChessPiece {
    void display(int x, int y);
}

package test13;

class WhiteChessPiece implements ChessPiece {
    @Override
    public void display(int x, int y) {
        System.out.println("在坐标(" + x + ", " + y + ")显示白棋");
    }
}


package test13;

class BlackChessPiece implements ChessPiece {
    @Override
    public void display(int x, int y) {
        System.out.println("在坐标(" + x + ", " + y + ")显示黑棋");
    }
}

package test13;

class ChessFactory {
    private static ChessPiece whiteChessPiece;
    private static ChessPiece blackChessPiece;

    // 获取白棋对象
    static ChessPiece getWhiteChessPiece() {
        if (whiteChessPiece == null) {
            whiteChessPiece = new WhiteChessPiece();
        }
        return whiteChessPiece;
    }

    // 获取黑棋对象
    static ChessPiece getBlackChessPiece() {
        if (blackChessPiece == null) {
            blackChessPiece = new BlackChessPiece();
        }
        return blackChessPiece;
    }
}


package test13;

public class Client {
    public static void main(String[] args) {
        // 获取享元工厂对象
        ChessFactory chessFactory = new ChessFactory();

        // 在不同位置显示白棋
        ChessPiece whiteChess1 = chessFactory.getWhiteChessPiece();
        whiteChess1.display(1, 1);

        ChessPiece whiteChess2 = chessFactory.getWhiteChessPiece();
        whiteChess2.display(2, 2);

        // 在不同位置显示黑棋
        ChessPiece blackChess1 = chessFactory.getBlackChessPiece();
        blackChess1.display(3, 3);

        ChessPiece blackChess2 = chessFactory.getBlackChessPiece();
        blackChess2.display(4, 4);
    }
}