Java设计模式

1、interface Log/ 抽象工厂public void writelog();class FileLog implements Logpublic void writelog() / TODO Auto-generated method stubSystem.out.println(" 文件日志记录 ");class DatabaseLog implements Logpublic void writelog() / TODO Auto-generated method stubSystem.out.println(" 数据库日志记录 "); in

2、terface LogFactorypublic Log creatLog();class FileLogFactory implements LogFactorypublic Log creatLog() / TODO Auto-generated method stub return new FileLog();class DatabaseFactory implements LogFactorypublic Log creatLog() / TODO Auto-generated method stub return new DatabaseLog();public class Clie

3、nt public static void main( String args) LogFactory factory;Log log;factory=new DatabaseFactory(); log=factory.creatLog(); log.writelog();/建造者模式public class Actor / 复合场品private String type;private String sex;private String face;private String costume;private String hairstyle;public String getType()

4、return type;public void setType(String type) this.type = type;public String getSex() return sex;public void setSex(String sex) this.sex = sex;public String getFace() return face;public void setFace(String face) this.face = face;public String getCostume() return costume;public void setCostume(String

5、costume) this.costume = costume;public String getHairstyle() return hairstyle;public void setHairstyle(String hairstyle) this.hairstyle = hairstyle;abstract class ActorBulider/ 抽象的建造者protected Actor actor=new Actor(); public abstract void bulidType(); public abstract void bulidSex(); public abstract

6、 void bulidFace(); public abstract void BulidCostume(); public abstract void bulidHairstype(); public Actor creatActor() return actor;class HeroBuilder extends ActorBuliderpublic void BulidCostume() / TODO Auto-generated method stub actor.setCostume(盔甲)；public void bulidFace() / TODO Auto-generated

7、method stub actor.setFace("英俊");public void bulidHairstype() / TODO Auto-generated method stub actor.setHairstyle(" 飘逸 ");public void bulidSex() / TODO Auto-generated method stubactor.setSex'"男"public void bulidType / TODO Auto-generated method stub actor.setType英雄；

8、class AngelBuilder extends ActorBuliderpublic void BulidCostume / TODO Auto-generated method stub actor.setCostume 白裙"public void bulidFace / TODO Auto-generated method stub actor.setFace"漂 亮"public void bulidHairstype / TODO Auto-generated method stub actor.setHairstyle" 披肩长发 &q

9、uot;public void bulidSex / TODO Auto-generated method stub actor.setSex"女"public void bulidType / TODO Auto-generated method stub actor.setType"天使"class GhostBuilder extends ActorBuliderpublic void BulidCostume() / TODO Auto-generated method stub actor.setCostume( 黑衣)；public void

10、 bulidFace() / TODO Auto-generated method stub actor.setFace('丑陋");public void bulidHairstype() / TODO Auto-generated method stub actor.setHairstyle(" 光头 ");public void bulidSex() / TODO Auto-generated method stub actor.setSex('妖");public void bulidType() / TODO Auto-gene

11、rated method stub actor.setType(魔鬼");class ActorController / 角色控制：指挥者public Actor construct (ActorBulider ab)Actor actor;ab.BulidCostume(); ab.bulidFace(); ab.bulidHairstype(); ab.bulidSex();ab.bulidType(); actor=ab.creatActor(); return actor;public class Client public static void main( String

12、args) ActorController ac=new ActorController(); ActorBulider ab;ab=new GhostBuilder();Actor angel;angel=ac.construct(ab);System.out.println(angel.getType()+ "System.out.println(" 性别System.out.println(" 面容System.out.println(" 服饰 System.out.println(" 发型的外观： ")"+angel

13、.getSex();"+angel.getFace(); "+angel.getCostume(); "+angel.getHairstyle();/原型模式class WeekLog implements Cloneable public String getName() return name;public void setName(String name) = name;public String getData() return data;public void setData(String data) this.data = data

14、;public String getContent() return content;public void setContent(String content) this.content = content;private String name;private String data;private String content;public Object clone()Object obj=null;tryobj=super.clone(); return obj; catch(CloneNotSupportedException e) System.out.println("

15、 不能复制 "); return null;public class Client public static void main( String args)WeekLog log_previous=new WeekLog(); log_previous.setName("zhangsan"); log_previous.setData("2022-12"); log_previous.setContent("busy");System.out.println("*week*");System.out.p

16、rintln(log_previous.getContent();System.out.println(log_previous.getName();System.out.println(log_previous.getData();WeekLog now; now=(WeekLog)log_previous.clone();now.setData("2022-13");System.out.println("*week*");System.out.println(now.getContent();System.out.println(now.getNa

17、me();System.out.println(now.getData();/适配器模式package hehe;import java.awt.BorderLayout;import java.awt.Container;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.JButton;import javax.swing.JDesktopPane;import javax.swing.JFrame;import javax.swing.JInternalFram

18、e;import javax.swing.event.InternalFrameAdapter;import javax.swing.event.InternalFrameEvent;/单class SubFrame extends JInternalFrameprivate static SubFrame frame;private SubFrame()super("子窗体 ,true,true,true,false);this.setLocation(20, 20);this.setSize(200, 200);this.addInternalFrameListener(new

19、MyIFListener(); this.setVisible(true);public static SubFrame getFrame()if(frame=null) frame=new SubFrame();return frame;class MyIFListener extends InternalFrameAdapterpublic void internalFrameClosing(InternalFrameEvent e) if(frame!=null) frame=null;public class Client extends JFrameprivate JButton b

20、utton;private JDesktopPane desktopPane;private SubFrame iFrame=null;public Client()super("主窗体)；Container c=this.getContentPane();c.setLayout(new BorderLayout()； button=new JButton(" 单机内部的窗体 ")； button.addActionListener(new BtListener()； c.add(button,BorderLayout.SOUTH)； desktopPane=ne

21、w JDesktopPane()； c.add(desktopPane)； this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)； this.setLocationRelativeTo(null)； this.setSize(400,400)； this.show()；class BtListener implements ActionListenerOverride public void actionPerformed(ActionEvent e) / TODO Auto-generated method stub if(iFrame!=n

22、ull)desktopPane.remove(iFrame);iFrame=SubFrame.getFrame(); desktopPane.add(iFrame);public static void main(String arg)new Client();interface DataOperationpublic int sort (int array);public int search(int array,int key);/快排适配器 class Quicksortpublic int quickSort(int array)sort(array, 0, array.length-

23、1); return array;public void sort(int a,int p,int r)int q=0;if(p<r)q=partition(a ,p,r); sort(a, p, q-1); sort(a, q+1, r);private int partition(int a, int p, int r) / TODO Auto-generated method stubint x=ar;int j=p-1;for(int i=p;i<=r-1;i+)if(ai<x)j+; swap(a,j,i);swap(a,j+1,r);return j+1;publ

24、ic void swap(int a,int i,int j)int t=ai;ai=aj;aj=t;/二分法查找适配器class BinarySearchpublic int binarySearch(int array,int key)int low=0;int high=array.length-1;while(low<=high)int mid=(low+high)/2;int midVal=arraymid;if(midVal<key)low=mid+1;else if(mid>key)high=mid-1;else return 1;return -1;class

25、 OperationAdapter implements DataOperationprivate Quicksort quicksort;private BinarySearch binarySearch;public OperationAdapter(Quicksort quicksort,BinarySearch binarySearch) this.quicksort=quicksort;this.binarySearch=binarySearch;public int search(int array, int key) / TODO Auto-generated method st

26、ubreturn binarySearch.binarySearch(array, key);public int sort(int array) / TODO Auto-generated method stubreturn quicksort.quickSort(array);public class Client public static void main(String args) DataOperation dataOperation;Quicksort quicksort=new Quicksort();BinarySearch binarySearch=new BinarySe

27、arch(); dataOperation=new OperationAdapter(quicksort, binarySearch); int array=13,24,15,36,26,17,68,78;int result;int value;System.out.println("the result is:");result=dataOperation.sort(array);for(int i=0;i<result.length;i+)System.out.print(resulti+",");System.out.println();

28、System.out.println("search result is:"); value=dataOperation.search(array, 24); if(value!=-1)System.out.println("24 be find");else System.out.println("24 is not find");/桥连接模式abstract class OprationSystemVersionprotected VideoFile vf;public void setVf(VideoFile vf) this.

29、vf = vf;public abstract void paly( String fileName);interface VideoFilepublic void decode(String osType,String fileName);class MPEGFile implements VideoFilepublic void decode(String osType, String fileName) / TODO Auto-generated method stubSystem.out.println(" 格式为 MPEG 的视屏 "+fileName+"

30、; 在 "+osType+" 中播放 "); class RMVBFile implements VideoFilepublic void decode(String osType, String fileName) / TODO Auto-generated method stubSystem.out.println(" 格式为 RMVB 的视屏 "+fileName+" 在 "+osType+" 中播放 "); class AVIFile implements VideoFilepublic void

31、 decode(String osType, String fileName) / TODO Auto-generated method stubSystem.out.println(" 格式为 AVI 的视屏 "+fileName+" 在 "+osType+" 中播放 "); class WindowsVersion extends OprationSystemVersionOverridepublic void paly(String fileName) / TODO Auto-generated method stubvf.de

32、code("windows", fileName);class LinuxVersion extends OprationSystemVersionOverridepublic void paly(String fileName) / TODO Auto-generated method stubvf.decode("LINUx", fileName); class UnixVersion extends OprationSystemVersionOverridepublic void paly(String fileName) / TODO Auto-

33、generated method stub vf.decode("Unix", fileName);public class Client public static void main(String args) VideoFile videoFile;OprationSystemVersion oprationSystemVersion; videoFile=new A VIFile();oprationSystemVersion=new WindowsVersion(); oprationSystemVersion.setVf(videoFile); oprationS

34、ystemVersion.paly(" 让子弹飞 ");import java.util.*;/抽象文件类abstract class AbstractFilepublic abstract void add(AbstractFile element);public abstract void remove (AbstractFile element); public abstract void display();/容器类class Folder extends AbstractFileprivate ArrayList fileList=new ArrayList();

35、private String fileName;public Folder(String fileName)this.fileName=fileName;Overridepublic void add(AbstractFile element) / TODO Auto-generated method stub fileList.add(element);Overridepublic void display() / TODO Auto-generated method stubSystem.out.println(" 文件夹 "+fileName+" 包含如下资

36、料 "); for(Object obj:fileList)(AbstractFile)obj).display();Overridepublic void remove(AbstractFile element) / TODO Auto-generated method stub fileList.remove(element);/叶子构件class ImageFile extends AbstractFileprivate String fileName;public ImageFile(String fileName) this.fileName=fileName;Overri

37、depublic void add(AbstractFile element) / TODO Auto-generated method stubSystem.out.println(" 对不起不支持该方法 ");Overridepublic void display() / TODO Auto-generated method stub System.out.println(" 浏览图片文件 "+fileName);Overridepublic void remove(AbstractFile element) / TODO Auto-generate

38、d method stub System.out.println(" 对不起不支持该方法 ");class TextFile extends AbstractFileprivate String fileName;public TextFile(String fileName)this.fileName=fileName;Overridepublic void add(AbstractFile element) / TODO Auto-generated method stub System.out.println(" 对不起不支持该方法 ");Over

39、ridepublic void display() / TODO Auto-generated method stubSystem.out.println(" 浏览文本文件 "+fileName); Overridepublic void remove(AbstractFile element) / TODO Auto-generated method stub System.out.println(" 对不起不支持该方法 ");public class Client public static void main(String args) Abstra

40、ctFile file1,file2,folder1,folder2,folder3;file1=new ImageFile("girl.jpg"); file2=new TextFile("java design"); file1.add(file1);file1.display();folder1=new Folder("new Imag");folder1.add(file1);folder2=new Folder("personer");folder2.add(file2);folder1.display(

41、);folder3=new Folder("zi liao ku");folder3.add(folder1);folder3.add(folder2);folder3.display();abstract class Windowpublic abstract void display();class SimpleWindow extends Window Override public void display() / TODO Auto-generated method stub System.out.println(" 显示窗体 ");/窗体装饰

42、类 : 抽象装饰类 class WindowDecorator extends Window private Window window;public WindowDecorator(Window window) this.window=window;Overridepublic void display() / TODO Auto-generated method stub window.display();/滚动条窗体装饰类：具体抽象类 class ScrollbarDecorator extends WindowDecoratorpublic ScrollbarDecorator(Win

43、dow window) super(window);/ TODO Auto-generated constructor stubpublic void display() this.setScrollbar(); super.display();public void setScrollbar() / TODO Auto-generated method stub System.out.println("add Scrollbar");class TransparentDecorator extends WindowDecorator public TransparentD

44、ecorator(Window window) super(window);/ TODO Auto-generated constructor stubpublic void display() this.setTransparent(); super.display();private void setTransparent() / TODO Auto-generated method stub System.out.println("set window transparent"); public class Clientpublic static void main(

45、String args)/ TODO 自动生成方法存根Window windows,windowsb,windowT; windows=new SimpleWindow(); windowsb=new ScrollbarDecorator(windows); windowT=new TransparentDecorator(windowsb); windowT.display();import java.beans.DesignMode; import java.io.FileInputStream;import java.io.FileNotFoundException; import ja

46、va.io.FileOutputStream;import java.io.IOException;/加密外观类class EncryptFacade private FileReader reader; private CipherMachine clpher; private FileWriter writer;public EncryptFacade() reader = new FileReader(); writer = new FileWriter(); clpher = new CipherMachine();public void fileEncrypt(String file

47、NameSrc, String fileNameDes) String plainStr = reader.read(fileNameSrc);String encryptStr = clpher.encrypt(plainStr); writer.write(encryptStr, fileNameDes);/文件读取类：子系统类class FileReader public String read(String FileNameSrc) System.out.println(" read filesrc");StringBuffer sBuffer = new Stri

48、ngBuffer();try FileInputStream inFS = new FileInputStream(FileNameSrc); int data;while (data = inFS.read() != -1) sBuffer = sBuffer.append(char) data); inFS.close(); catch (FileNotFoundException e) System.out.println("file not find");/ TODO: handle exception catch (IOException e) System.ou

49、t.println(" file farr");/ TODO: handle exceptionreturn sBuffer.toString();/文件保存class FileWriterpublic void write(String encryptSrc,String fileNameDes)System.out.println("file save");try FileOutputStream outFS=new FileOutputStream(fileNameDes);outFS.write(encryptSrc.getBytes(); ou

50、tFS.close(); catch (FileNotFoundException e) / TODO: handle exception System.out.println("file not find");catch (IOException e) / TODO: handle exceptionSystem.out.println(" file error");/文件加密class CipherMachinepublic String encrypt(String plainText)System.out.println("file i

51、s encrypting");String eString=""for(int i=0; i<plainText.length();i+)/String cString=String.valueOf(plainText.charAt(i)%7);String cString=String.valueOf(plainText); eString+=cString;return eString;public class Client public static void main(String args) / TODO 自动生成方法存根EncryptFacade

52、 eFacade=new EncryptFacade(); eFacade.fileEncrypt("facade/src.txt", "facade/des.txt");/坐标类：外部状态类import java.util.Hashtable;/享元模式class Coordinatesprivate int x;private int y;public Coordinates(int x, int y) this.x = x;this.y = y;public int getX() return x; public void setX(int x)

53、this.x = x;public int getY() return y; public void setY(int y) this.y = y;/抽象的享元类abstract class IgoChessmanpublic abstract String getColor();public void locate(Coordinates coordinates)System.out.println(" 棋 子 的 颜 色 "+this.getColor()+" 棋 子 的 位 置 "+coordinates.getX()+","+

54、coordinates.getY();class BlackIgoChessman extends IgoChessmanOverridepublic String getColor() / TODO Auto-generated method stub return "black"class WhiteIgoChessman extends IgoChessmanOverridepublic String getColor() / TODO Auto-generated method stub return "white"/享元工厂类 class Ig

55、oChessmanFactoryprivate static IgoChessmanFactory instance=new IgoChessmanFactory(); private static Hashtable hashtable;private IgoChessmanFactory() hashtable=new Hashtable(); IgoChessman black,white; black=new BlackIgoChessman(); white=new WhiteIgoChessman(); hashtable.put("b", black); ha

56、shtable.put("w", white);public static IgoChessmanFactory getInstance()return instance;public static IgoChessman getIgoChessman(String color)return (IgoChessman)hashtable.get(color);public class Client public static void main(String args) / TODO 自动生成方法存根IgoChessman black1,black2,black3,white1,white2; IgoChessmanFactory factory; factory=IgoChessmanFactory.getInstance(); black1=factory.getIgoChessman("b"); black2=factory.getIgoChessman