设计模式课后习题

建造者模式课后第一题：产品类：public class GamePerson private String face;private String gender;private String cloth;public String getFace() return face;public void setFace(String face) this.face = face;public String getGender() return gender;public void setGender(String gender) this.gender = gender;public String getCloth() return cloth;public void setCloth(String cloth) this.cloth = cloth;抽象建造类：public abstract class PersonCreate protected GamePerson person=new GamePerson();public abstract void createFace();public abstract void createGender();public abstract void createCloth();public GamePerson getPerson()return person;具体建造者类：public class PersonType1 extends PersonCreate public void createFace() person.setFace(“瓜子脸“);public void createGender() person.setGender(“美女“);public void createCloth() person.setCloth(“洛丽塔“);具体建造类：public class PersonType2 extends PersonCreate public void createFace() person.setFace(“国字脸“);public void createGender() person.setGender(“帅哥“);public void createCloth() person.setCloth(“西装革履“);指挥者类：public class GamePlayer private PersonCreate pc;public void choseType(PersonCreate pc)this.pc=pc;public GamePerson create()pc.createCloth();pc.createFace();pc.createGender();return pc.getPerson();测试类：public class Test public static void main(String args) PersonCreate pc=new PersonType1();GamePlayer gp=new GamePlayer();gp.choseType(pc);GamePerson person=gp.create();System.out.println(“游戏人物特征：“);System.out.println(“长着一张“+person.getFace()+“穿着“+person.getCloth()+“的“+person.getGender();课后第二题：产品类：public class Computer private String cpu;private String storage;public String getCpu() return cpu;public void setCpu(String cpu) this.cpu = cpu;public String getStorage() return storage;public void setStorage(String storage) this.storage = storage;抽象建造类：public abstract class Factory protected Computer c=new Computer();public abstract void installCpu();public abstract void installStorage();public Computer getComputer()return c;具体建造者类：public class Desktop extends Factory public void installCpu() c.setCpu(“AMD“);public void installStorage() c.setStorage(“8G内存“);具体建造类：public class Laptop extends Factory public void installCpu() c.setCpu(“intel“);public void installStorage() c.setStorage(“1G内存“);指挥者类：public class User private Factory f;public void buy(Factory f)this.f=f;public Computer con()f.installCpu();f.installStorage();return f.getComputer();测试类：public class Test public static void main(String args) Factory f=new Laptop();User u=new User();u.buy(f);Computer c=u.con();System.out.println(c.getCpu()+“ “+c.getStorage();单例模式课后第一题：懒汉式模式：public class SingletonWindow extends JInternalFrame private static SingletonWindow instance=null;private SingletonWindow() super(“内部窗口“,true,true,true);System.out.println(“创建了一个内部窗体“);public static SingletonWindow getInstance()if(instance=null)instance=new SingletonWindow();elseSystem.out.println(“已经创建了一个内部窗体！“);return instance;测试类：public class Main extends JFrame private static final long serialVersionUID = 1L;private JButton btnAdd;private JPanel btnpl;private JDesktopPane dtp;private JInternalFrame itf;public Main() this.setSize(new Dimension(600, 700);this.setDefaultCloseOperation(EXIT_ON_CLOSE);this.setResizable(false);this.setVisible(true);this.setLocationRelativeTo(this);this.setTitle(“实验 2“);this.setLayout(null);this.dtp=new JDesktopPane();this.dtp.setBounds(new Rectangle(0, 0, 600, 600);this.btnpl=new JPanel();this.btnpl.setBounds(new Rectangle(0, 600, 600, 100);this.btnAdd=new JButton(“添加一个内部窗体“);this.btnAdd.setBounds(new Rectangle(10, 10, 150, 30);this.add(dtp);this.add(btnpl);this.btnpl.add(btnAdd);this.btnAdd.addActionListener(new ActionListener() public void actionPerformed(ActionEvent arg0) itf=SingletonWindow.getInstance();itf.setSize(200, 200);itf.setVisible(true);dtp.add(itf););public static void main(String args) new Main();适配器模式课后第一题目标抽象类：public abstract class Robot public abstract void run();public abstract void cry();适配者类：public class Dog public void run()System.out.println(“狗跑“);public class Bird public void cry()System.out.println(“鸟叫“);适配器类：public class RobotAdapter extends Robot private Bird bird;private Dog dog;public RobotAdapter(Bird bird,Dog dog) this.bird=bird;this.dog=dog;public void run() System.out.print(“机器人学“);dog.run();public void cry() System.out.print(“机器人学“);bird.cry();测试类：public class Test public static void main(String args) Bird bird=new Bird();Dog dog=new Dog();RobotAdapter adapter=new RobotAdapter(bird, dog);adapter.run();adapter.cry();组合模式课后习题一public abstract class MyElement public abstract void eat();public abstract void add(MyElement element);public abstract void remove(MyElement element);public class Apple extends MyElement public void eat() System.out.println(“吃苹果“);public void add(MyElement element) public void remove(MyElement element) public class Banana extends MyElement public void eat() System.out.println(“吃香蕉“);public void add(MyElement element) public void remove(MyElement element) public class Pear extends MyElement public void eat() System.out.println(“吃梨子“);public void add(MyElement element) public void remove(MyElement element) public class Plate extends MyElement private ArrayList list=new ArrayList();public void eat() for (Object object : list) (MyElement)object).eat();public void add(MyElement element) list.add(element);public void remove(MyElement element) list.remove(element);测试类：public class Client public static void main(String args) MyElement obj1,obj2,obj3,obj4,obj5;Plate plate1,plate2,plate3;obj1=new Apple();obj2=new Pear();obj3=new Banana();plate1=new Plate();plate1.add(obj1);plate1.add(obj2);plate1.add(obj3);obj4=new Apple();obj5=new Banana();plate2=new Plate();plate3=new Plate();plate2.add(obj4);plate2.add(obj5);plate3.add(plate1);plate3.add(plate2);plate3.eat();课后习题二public abstract class AbstractFile public abstract void add(AbstractFile file );public abstract void delete(AbstractFile file);public abstract void lookThrough();public abstract String getfileName();public class ImageFile extends AbstractFile private String fileName;public ImageFile(String fileName) this.fileName=fileName;public void add(AbstractFile file) public void delete(AbstractFile file) public void lookThrough() public String getfileName() return fileName;public class TextFile extends AbstractFilep