Java程序源代码

1、经典Java程序源代码1 .加法器(该java源文件的名称是)import .*;import .*;public class Adder implements ActionListener(JFrame AdderFrame;JTextField TOprand1;JTextField TOprand2;JLabel LAdd,LSum;JButton BAdd,BClear;JPanel JP1,JP2;public Adder()(AdderFrame=new JFrame("AdderFrame");TOprand1=new JTextField("&qu

2、ot;);TOprand2=new JTextField("");LAdd=new JLabel("+");LSum=new JLabel("= ");BAdd=new JButton("Add");BClear=new JButton("Clear");JP1=new JPanel();JP2=new JPanel();(this);(new ActionListener()(public void actionPerformed(ActionEvent event) (""

3、;)；("")；("=");)；(JP1)；(TOprandl);(LAdd);(TOprand2);(LSum);(JP2)；(BAdd);(BCIear);().setLayout(new BorderLayout();().add(JP1,;().add(JP2,;(new WindowAdapterQpublic void windowClosing(WindowEvent event)(0)；)；0；(true);(false);(250,100);)public void actionPerformed(ActionEvent event)d

4、ouble sum=(double)().doubleValue()+().doubleValue(); ("="+sum);)public static void main(String args)Adder adder=new Adder();2 .小型记事本该java源文件由两个类构成,importimportimportclass mynotepad extends JFrame (File file=null;Color color=;mynotepadQinitTextContent();initMenu();initAboutDialogQ;void init

5、TextContent()getContentPane().add(new JScrollPane(content); )JTextPane content=new JTextPane();JFileChooser openfile=new JFileChooser();JColorChooser opencolor=new JColorChooser();JDialog about=new JDialog(this);名称为JMenuBar menu=new JMenuBar();ength;j+)(menusi.add(optionofmenuij);optionofmenuij.addA

6、ctionListener( action);)(menu);)ActionListener action=new ActionListener()quals(name)("")；file=null;)else if("翻开".equals(name)(if(file !=null)(file);int returnVal=;if(returnVal=file=();unfoldQ;)else if("保存".equals(name)(if(file!=null) (file);int returnVal=;if(returnVal=

7、 (file=();saving();)else if("退出".equals(name)(mynotepad f=new mynotepad();ints=(f,"退出？ 退出】if(s=(0)；)else if("剪切".equals(name)(0；)else if("复制".equals(name)0；)else if("粘贝占".equals(name)(0；)else if("颜色".equals(name)(color=,"",color);(colo

8、r);)else if("关于".equals(name)(300,150);0；)void saving()tryFileWriter Writef=new FileWriter(file);0)；0；)catch(Exception e)(0；)void unfold()(try(FileReader Readf=new FileReader(file); int len=(int)();char buffer=new charlen;(buffer,0,len);0；(new String(buffer);)catch(Exception e)0；void initA

9、boutDialogQ(new GridLayout(3,1);O.setBackground;().add(new JLabel("我的记事本程序");dd(new JLabel("制 Fwx");().add(new JLabel("2007 年 12 月)； (true);importclass simplecalculator (static String point=new String();static String Amal=new String();static String ONE=new String();static St

10、ring TWO=new String();static String THREE=new String();static String FOUR=new String();static String FIVE=new String();static String SIX=new String();static String SEVEN=new String();static String EIGHT=new String();static String NINE=new String();static String ZERO=new String();static String Result

11、State=new StringQ;static Double QF;static JButton zero=new JButton("0");static JButton one=new JButton("1");static JButton two=new JButton("2");static JButton three=new JButton("3");static JButton four=new JButton("4");static JButton five=new JButton

12、("5");static JButton six=new JButton("6");static JButton seven=new JButton("7");static JButton eight=new JButton("8");static JButton nine=new JButton("9");static JButton add=new JButton("+");static JButton sub=new JButton("-");sta

13、tic JButton mul=new JButton("*");static JButton div=new JButton("/");static JButton QuFan=new JButton("+/-");static JButton Dian=new JButton(".");static JButton equal=new JButton("=");static JButton clear=new JButton("C");static JButton Bai

14、Fen=new JButton("%");static JButton FenZhiYi=new JButton("1/x");static int i=0;static Double addNumber;static Double subNumber;static Double mulNumber;static Double divNumber;static Double equalNumber;static Double temp;static JTextArea result=new JTextArea(1,20);public static vo

15、id main(String args)(JFrame frame=new JFrame(“计算器");(false);("")；ResultState="窗口空JPanel ForResult=new JPanel();JPanel ForButton7_clear=new JPanel();JPanel ForButton4_mul=new JPanel();JPanel ForButton1_sub=new JPanel();JPanel ForButton0_equaI=new JPanel();FlowLayout FLO=new FlowLa

16、yout();(result);(FLO);(seven);(eight);(nine);(div);(clear);(FLO);(four);(five);(six);(mul);(BaiFen);(FLO);(one);(two);(three);(sub);(FenZhiYi);(FLO);(zero);(QuFan);(Dian);(add);(equal);().setLayout(FLO);().add(ForResult);().add(ForButton7_clear);().add(ForButton4_mul);().add(ForButton1_sub);().add(F

17、orButtonO_equal);(250,250,245,245);(false);(true);(new ActionListener()(public void action Performed (Action Event e) ("")；ZERO=""ONE=""TWO=""THREE*FOUR=""FIVE=""SIX=""SEVEN=""EIGHT*NINE=""ResultState="窗口空

18、point=""i=0;);(new ActionListener()(public void actionPerformed(ActionEvent e)(ZERO="已经点击ResultState="窗口不为空if(ONE="已经点击"|TWO="已经点击"|THREE="已经点击 已经点击"|EIGHT="已经点击"|NINE="已经点击")("0")；)if(ResultState="窗口空)("0"

19、;);)；(new ActionListener()(public void actionPerformed(ActionEvent e)(ONE="已经点击ResultState="窗口不为空"|FOUR="已经点击"|FIVE="已经点击"|SIX="已经点击"|SEVEN="if(point="已经点击"|ZERO!="已经点击"|ONE="已经点击"|TWO="已经点击|THREE="已经点击|FIVE=&q

20、uot;已经点击"|SIX="已经点击 |SEVEN=" 已经点击"|EIGHT="已经点击"|NINE="已经点击"&&()!="0")if(ResultState="窗口空")；(new ActionListenerQpublic void actionPerformed(ActionEvent e)TWO="已经点击Resultstate二"窗口不为空if(point="已经点击"|ZERO!="已经点击

21、"|ONE="已经点击"|TWO="已经点击|THREE="已经点击"|FIVE="已经点击"|SIX="已经点击 |SEVEN=" 已经点击"|EIGHT="已经点击"|NINE="已经点击"&&()!="0")if(ResultState="窗口空");(new ActionListener()(public void actionPerformed(ActionEvent e)(THR

22、EE="已经点击ResultState="窗口不为空if(point="已经点击"|ZERO!="已经点击"|ONE="已经点击"|TWO="已经点击"|THREE="已经点击"|FIVE="已经点击"|SIX="已经 点击 |SEVEN=" 已经点击"|EIGHT="已经点击"|NINE="已经点击"&&()!="0")("3")

23、；)if(ResultState="窗口空)("3");)；(new ActionListener()(public void actionPerformed(ActionEvent e)(FOUR="已经点击ResultState="窗口不为空if(point="已经点击"|ZERO!="已经点击"|ONE="已经点击"|TWO="已经点击"|THREE="已经点击"|FIVE="已经点击"|SIX="已经点击|S

24、EVEN="已经点击"|EIGHT="已经点击"|NINE="已经点击"&&()!="0") ("4");) if(ResultState="窗口 空") ("4"););(new ActionListener()(public void actionPerformed(ActionEvent e)(FIVE="已经点击"ResultState="窗口不为空"if(point="已经点击&q

25、uot;|ZERO!="已经点击"|ONE="已经点击"|TWO="已经点击"|THREE="已经点击"|FIVE="已经点击"|SIX="已经 点击|SEVEN="已经点击"|EIGHT="已经点击"|NINE="已经点击"&&()!="0")("5");if(ResultState="窗口 空")("6"););(new Act

26、ionListener()(public void actionPerformed(ActionEvent e)(SIX="已经点击ResultState="窗口不为空if(point="已经点击"|ZERO!="已经点击"|ONE="已经点击"|TWO="已经点击"|THREE="已经点击"|FIVE="已经点击"|SIX="已经 点击"|SEVEN="已经点击"|EIGHT="已经点击"|NI

27、NE="已经点击"&&()!="0")("6")；)if(ResultState="窗口空)("6");)；(new ActionListener()(public void actionPerformed(ActionEvent e)(SEVEN="已经点击ResultState="窗口不为空if(point="已经点击"|ZERO!="已经点击"|ONE="已经点击"|TWO="已经点击"

28、;|THREE="已经点击"|FIVE="已经点击"|SIX="已经 点击 |SEVEN=" 已经点击"|EIGHT="已经点击"|NINE="已经点击"&&()!="0") if(ResultState="窗口 空") ("7");)；(new ActionListener()(public void actionPerformed(ActionEvent e)(EIGHT="已经点击"R

29、esultState="窗口不为空"if(point="已经点击"|ZERO!="已经点击"|ONE="已经点击"|TWO="已经点击"|THREE="已经点击"|FIVE="已经点击"|SIX="已经 点击|SEVEN="已经点击"|EIGHT="已经点击"|NINE="已经点击&&()!="0")("8"); if(ResultState

30、="窗口 空") ("8"););(new ActionListenerQpublic void actionPerformed(ActionEvent e)(NINE="已经点击ResultState="窗口不为空if(point="已经点击"|ZERO!="已经点击"|ONE="已经点击"|TWO="已经点击"|THREE="已经点击"|FIVE="已经点击"|SIX="已经 点击 |SEVEN=&qu

31、ot; 已经点击"|EIGHT="已经点击"|NINE="已经点击"&&()!="0")("9")；)if(ResultState="窗口空)( ("9");)；(new ActionListenerQ(public void actionPerformed(ActionEvent e)(point="已经点击i=i+1;if(ResultState="窗口不为空"&&i=1) );(new ActionListe

32、ner()(public void action Performed (Action Event e) (Amal="已经选择加号addNumber=().doubleValue();("")；i=0;)；(new ActionListener()(public void action Performed (Action Event e) (Amal="已经选择减号subNumber=().doubleV alue();("")；i=0;);(new ActionListener()(public void action Perfor

33、med (Action Event e) (Amal="已经选择乘号mulNumber=().doubleValue();("")；i=0;)；(new ActionListener()(public void action Performed (Action Event e) (Amal="已经选择除号divNumber=().doubleValue();i=0;)；(new ActionListenerQpublic void action Performed (Action Event e)QF=new Double().doubleV alue(

34、);QF=QF*(-1);0)；)；(new ActionListener()(public void action Performed (Action Event e)(equalNumber=().doubleV alue(); if(Amal="已经选择加号") (temp=addNumber+equalNumber;0)；)if(Amal="已经选择减号")(temp=subNumber-equalNumber;0)；)if(Amal="已经选择乘号")(temp=mulNumber*equalNumber;0)；)if(Am

35、al="已经选择除号")(temp=divNumber/equalNumber;0)；)；(new ActionListener()(public void action Performed (Action Event e) (if(ResultState="窗口不为空")(temp=().doubleValue()/100;0)；)；(new ActionListener()(public void action Performed (Action Event e)temp=1/().doubleValue();0)；);)3 .图形化写字板(该jav

36、a源文件的名称是)Jimportimportimport class JNotePadUI extends JPanel (etSystemClipboard();String text =etPath();if (file = null) (return;) etPath();if (savefile = null)return;)else(String docToSave =();if (docToSave != null)(FileOutputStream fstrm = null;BufferedOutputStream ostrm = null;try(fstrm = new Fil

37、eOutputStream(savefile);ostrm = new BufferedOutputStream(fstrm);byte bytes = null;try(bytes =();)catch (Exception e1)(0；)(bytes);)catch (lOException io) else(return;) etVisible(true);"lOException:"+ ();)finally(try(0；0；0；)catch (lOException ioe)"lOException:"+ ();(0);dd(applet,;(

38、new appCloseL();(800, 500);(500,170);(true);0；(false);)4 .数字化的连连看(该java源文件的名称是)importimportimportpublic class lianliankan implements ActionListener(JFrame mainFrame; ddActionListener(this);(diamondsButtoncolsrows);)exitButton=new JButton("退出");(this);resetButton=new JButton("重歹卜')

39、；(this);newlyButton=new JButton("再来局");(this);(exitButton);(resetButton);(newly Button);()；(fraction Lable);(280,100,500,450);(true);)public void randomBuild()(int randoms,cols,rows;for(int twins=1 ;twins<=15;twins+)(randoms=(int)()*25+1);for(int alike=1 ;alike<=2;alike+) (cols=(int)

40、()*6+1);rows=(int)()*5+1);while(gridcolsrows!=0) (cols=(int)()*6+1);rows=(int)()*5+1);)colsrows=randoms;)public void fraction()(0)+100);)public void reload()(int save = new int30;int n=0,cols,rows;int grid= new int87;for(int i=0;i<=6;i+)(for(int j=0;j<=5;j+)(ifij!=O)(saven=ij;n+;)n=n-1;=grid;w

41、hile(n>=0)(cols=(int)()*6+1);rows=(int)()*5+1);while(gridcolsrows!=0)(cols=(int)()*6+1);rows=(int)()*5+1);)colsrows=saven;n-;)(false);presslnformation=false; etVisible(false);),J Button bz)public void estimateEven(int placeXJnt placeY (if(presslnformation=false)(x=placeX;y=placeY;secondMsg=gridxy

42、;secondButton=bz; presslnformation=true;) else (xO=x;yO=y;fristMsg=secondMsg;firstButton=secondButton;x=placeX;y=placeY;secondMsg=gridxy;secondButton=bz;if(fristMsg=secondMsg && second Button !=firstButton) (xiao();)public void xiao() ;import importimport MenuDemo extends JPanel implements A

43、ctionListener(JTextArea JTA=new JTextArea(13,22);JFrame frame=new JFrame("The Editor");JScrollPane JSP=new JScrollPane(JTA);JFileChooser JFC=new JFileChooser();Clipboard clipbd = getToolkit().getSystemClipboard();int JFC_ReturnValue;String selection;MenuDemo()(JMenuBar jmb=new JMenuBar();J

44、Menu file= new JMenu("File");JMenu edit= new JMenu("Edit");JMenu search= new JMenu("Search");JMenu configure= new JMenu("Configure");JMenu help= new JMenu("Help");(file);(edit);(search);(configure);(help);JMenultem NEW=new JMenultem("New");

45、JMenultem OPEN=new JMenultem("Open");JMenultem SAVE=new JMenultem("Save As");JMenultem EXIT=new JMenultem("Exit");(NEW);(this);(OPEN);(this);(SAVE);(this);(EXIT);(this);JMenultem CUT=new JMenultem("Cut");JMenultem COPY=new JMenultem("Copy");JMenultem

46、 PASTE=new JMenultem("Paste");JMenultem DELETE=new JMenultem("Delete");(CUT);(this);(COPY);(this);(PASTE);(this);(DELETE);(this);JMenultem FIND=new JMenultem("Find");JMenultem REPLACE=new JMenultem("Replace");JMenultem BOOK_MARKS=new JMenultem("Bookmarks&

47、quot;);(FIND);(REPLACE);(BOOK_MARKS);JMenu SET_COLOR=new JMenu("Set Color");JMenuItem SET_BACK_GROUND_COLOR=new JMenuItem("SetBackGroundColor");JMenuItem SET_FONT_COLOR=new JMenuItem("SetFontColor");(SET_BACK_GROUND_COLOR);(this);(SET_FONT_COLOR);(this);JMenu SET_FONT=n

48、ew JMenu("Set Font");JMenuItem SET_FONT_SIZE=new JMenuItem("SetFontSize");JMenuItem SET_FONT_BLOCK=new JMenuItem("SetFontBlock");(SET_FONT_SIZE);(SET_FONT_BLOCK);(SET_COLOR);(SET_FONT);JMenuItem HELP_CONTENTS=new JMenuItem("HelpContents");JMenuItem ABOUT_THE_P

49、ROGRAM=new JMenuItem("AboutTheProgram");(HELP_CONTENTS);(ABOUT_THE_PROGRAM);(this);(true);(true);().setLayout(new FlowLayout();().add(jmb);().add(JSP);()；(252,300);(400,250);(false);J)public static void main(String args)(MenuDemo MD=new MenuDemo();)public void actionPerformed(ActionEvent e

50、)(if()="New")(int s=(frame,"Are you sure to build new one?n","New",; if(s=("")；)if()="Open")JFC_ReturnValue=(frame);if(JFC_ReturnValue=String file=().getPath();if(file=null)(return;)try(Reader in = new FileReader(file);char buff = new char4096;int nc

51、h;while (nch = (buff, 0,) != -1) (new PlainDocumentQ);(new String(buff, 0, nch);)catch (lOException io)("lOException:" + ();)else(return;if()="Save As")(JFC_ReturnValue=(frame);if(JFC_ReturnValue= (String savefile = ().getPath();if (savefile = null) (return;) else(String docToSav

52、e =();if (docToSave != null) (FileOutputStream fstrm = null;BufferedOutputStream ostrm = null;try(fstrm = new FileOutputStream(savefile);ostrm = new BufferedOutputStream(fstrm); byte bytes = null;trybytes =();)catch (Exception e1)(0；)(bytes);)catch (lOException io)("lOException:"+ ();) fin

53、ally(try(0；0；0；)catch (lOException ioe)"lOException:"+ ();)else(return;)if()="Exit")(int s=(frame,"Are you sure to exit?","Exit",;if(s=(0)；)if()="Cut")(selection=();StringSelection clipString = new StringSelection(selection);(clipString, clipString);

54、("),()；) if()="Copy")selection=();StringSelection clipString = new StringSelection(selection);(clipString, clipString);if()="Paste") (frame);(String);Transferable cl ip Data = try (String clipString = (clipString,(),();) catch (Exception ex)if()="Delete") (,(),()；i

55、f()="SetBackGroundColor")Color color = (this, "ChooseBackGroundColor",; if (color != null) (color);)elsereturn;)if()="SetFontColor")(Color color = (this, "ChooseBackGroundColor",; if (color != null) (color);)elsereturn;)if()="HelpContents")() if()=&q

56、uot;AboutTheProgram")(JTA,"Hello World!","AboutTheProgram",;5.小型抽奖系统导入 号和姓名该 java源文件的名称是在源代码之前告诉大家一声,导入的文件格式是叶尔凯西-革命-热依古丽-杰格尔-小叶-大爷-小花-系统最少要输入7名用户,三等奖3名,二等奖2名,txt文本格式,文件的内容可以有上千百万个用户和 号构成,格式如下:等奖1名,特等奖1名；下面是Java源代码import .*; import import .*; import .*;*public class ChooseAward extends JFrame (/*/new JMenuItem("保存"),new JMenuItem("退出")；JTextField t_identNumber = new JTextField(); ddActionListener(new ActionListener() (ddActionListener(new ActionListener() (."); .(awardThread = new ChooseThread(this);();("将产生：特(1名),一 (1名),