用Java实现日历记事本

1、用Java实现日历记事本实验目的掌握RandomAccessFile类的使用；掌握字符输入、输出流缓和冲输入、输出流的使用。实验要求实验前，应预先熟习有关知识点，拟出相应的实验操作步骤，明的确验目的和要求；实验过程中，听从实验指导教师安排，恪守实验室的各项规章制度，爱惜实验仪器设施；实验操作达成后，仔细书写实验报告，总结实验经验，剖析实验过程中出现的问题。实验内容编程实现日历记事本。详细要求以下：1）该日历能够经过在文本框中输入年份和月份设置日期，也可按年前后翻动，用鼠标左键单击“上年”和“下年”按钮，将目前日历的年份减一和加一。还能够在某年内按月前后翻动，用鼠标左键单击“上月”和“下月”按钮

2、，将日历的月份减一和加一。2）左键单击日历上的日期，能够经过右边的记事本（文本区）编写有关日记，并将日记保留到一个文件，该文件的名字是由目前日期构成的字符序列。用户能够读取、删除某个日期的日记，也能够持续向某个日记增添新的内容。在保留、删除和读取日记时都会先弹出一个确认对话框，以确认保留、删除和读取操作。3）当某个日期有日记时，该日期以粗体16号字显示，表示这个日期有日记；当用户删除某个日期的日记后，该日期恢还本来的外观。实现成效图（参照）以下：提示：（1）组件调用publicvoidsetFont(Fontf)方法能够设置组件上的字体，Font法为：publicFont(Stringname

3、,intstyle,intsize)，此中name是字体的名字，字体的款式（如Font.BOLD表示粗体）size决定字体的大小。（详细请参照JDKAPI）（2）当左键单击日历上的日期时，如要获得该日期，可经过办理该组件上的鼠标事件来实现。类的结构方style决定4实验步骤、实行过程、重点代码、实验结果及剖析说明等1.CalendarPad类1)进行整体布局，成立日历记事本文件，设置日历卡，把日期按礼拜次序摆列，并用窗口监督器实现。2）用窗口监督器实现，结果以下：2.Notepad类（1）对日期的设置和获得，设置信息条，对文本框进行设置，保留日记、删除日记和读取日记按钮的事件实现。（2）保留日

4、记按钮事件实现以下：3）读取日记按钮事件实现以下：4.）删除日记按钮事件实现以下：Year类1）输入年份能够实现输出，给上下年按钮设置监督器，对上下年按钮事件的实现。（2）其结果以下：4.Month类1）设置上下月监督器，对上下月按钮的事件实现，划分闰年和平年，对天数不一样的月份进行分类。2）其结果以下：（续上页，可加页）各个类的源代码以下：CalendarPad类：/CalendarPad.javaimportjava.util.Calendar;importjavax.swing.*;importjava.awt.*;importjava.awt.event.*;importjava.io

5、.*;importjava.util.Hashtable;publicclassCalendarPadextendsJFrameimplementsMouseListener,ActionListenerintyear,month,day;Hashtablehashtable;JButtonSave,Delete,Read;Filefile;JTextFieldshowDay;JLabeltitle;CalendarDate;intWeekday;NotePadnotepad=null;MonthChangeMonth;YearChangeYear;Stringweek=礼拜日,礼拜一,礼拜二

6、,礼拜三,礼拜四,礼拜五,礼拜六;JPanelleftPanel,rightPanel;publicCalendarPad(intyear,intmonth,intday)leftPanel=newJPanel();JPanelleftCenter=newJPanel();JPanelleftNorth=newJPanel();leftCenter.setLayout(newGridLayout(7,7);rightPanel=newJPanel();this.year=year;this.month=month;this.day=day;ChangeYear=newYear(this);Ch

7、angeYear.setYear(year);ChangeMonth=newMonth(this);ChangeMonth.setMonth(month);title=newJLabel7;showDay=newJTextField42;for(intj=0;j7;j+)titlej=newJLabel();titlej.setText(weekj);titlej.setBorder(BorderFactory.createRaisedBevelBorder();titlej.setForeground(Color.blue);leftCenter.add(titlej);for(inti=0

8、;i42;i+)showDayi=newJTextField();showDayi.addMouseListener(this);showDayi.setEditable(false);leftCenter.add(showDayi);Save=newJButton(保留日记);Delete=newJButton(删除日记);Read=newJButton(读取日记);Read.addActionListener(this);Save.addActionListener(this);Delete.addActionListener(this);/设置监督器JPanelpSouth=newJPa

9、nel();pSouth.add(Save);pSouth.add(Delete);pSouth.add(Read);Date=Calendar.getInstance();Boxbox=Box.createHorizontalBox();box.add(ChangeYear);box.add(ChangeMonth);leftNorth.add(box);leftPanel.setLayout(newBorderLayout();add(leftNorth,BorderLayout.NORTH);leftPanel.add(leftCenter,BorderLayout.CENTER);ad

10、d(pSouth,BorderLayout.SOUTH);leftPanel.validate();notepad=newNotePad(this);rightPanel.add(notepad);Containercon=getContentPane();JSplitPanesplit=newJSplitPane(JSplitPane.HORIZONTAL_SPLIT,leftPanel,rightPanel);con.add(split,BorderLayout.CENTER);/进行整体布局con.validate();hashtable=newHashtable();file=newF

11、ile(日历记事本.txt);if(!file.exists()tryFileOutputStreamout=newFileOutputStream(file);ObjectOutputStreamobjectOut=newObjectOutputStream(out);objectOut.writeObject(hashtable);objectOut.close();out.close();catch(IOExceptione)setCalendar(year,month);addWindowListener(newWindowAdapter()/设置窗口监督器publicvoidwind

12、owClosing(WindowEvente)System.exit(0););setVisible(true);setBounds(100,60,524,335);validate();publicvoidactionPerformed(ActionEvente)if(e.getSource()=Save)notepad.Save(file,year,month,day);elseif(e.getSource()=Delete)notepad.Delete(file,year,month,day);elseif(e.getSource()=Read)notepad.Read(file,yea

13、r,month,day);publicvoidsetCalendar(intyear,intmonth)/Date.set(year,month-1,1);设置日历卡Weekday=Date.get(Calendar.DAY_OF_WEEK)-1;if(month=1|month=2|month=3|month=5|month=7|month=8|month=10|month=12)Arrange(Weekday,31);elseif(month=4|month=6|month=9|month=11)Arrange(Weekday,30);elseif(month=2)if(year%4=0&

14、year%100!=0)|(year%400=0)Arrange(Weekday,29);elseArrange(Weekday,28);publicvoidArrange(intWeekday,intMonthday)/for(inti=Weekday,n=1;iWeekday+Monthday;i+)showDayi.setText(+n);if(n=day)showDayi.setForeground(Color.blue);把日期，按礼拜摆列showDayi.setFont(newFont(TimesRoman,Font.BOLD,20);elseshowDayi.setFont(ne

15、wFont(TimesRoman,Font.BOLD,12);showDayi.setForeground(Color.black);n+;for(inti=0;iWeekday;i+)showDayi.setText();for(inti=Weekday+Monthday;i42;i+)showDayi.setText();publicintgetYear()returnyear;publicvoidsetYear(inty)year=y;notepad.setYear(year);publicintgetMonth()returnmonth;publicvoidsetMonth(intm)

16、month=m;notepad.setMonth(month);publicintgetDay()returnday;publicvoidsetDay(intd)day=d;notepad.setDay(day);publicHashtablegetHashtable()returnhashtable;publicFilegetFile()returnfile;publicvoidmousePressed(MouseEvente)JTextFieldsource=(JTextField)e.getSource();tryday=Integer.parseInt(source.getText()

17、;notepad.setDay(day);notepad.setNews(year,month,day);notepad.setText(null);catch(Exceptionee)publicvoidmouseClicked(MouseEvente)publicvoidmouseReleased(MouseEvente)publicvoidmouseExited(MouseEvente)publicvoidmouseEntered(MouseEvente)publicstaticvoidmain(Stringargs)Calendarcalendar=Calendar.getInstan

18、ce();inty=calendar.get(Calendar.YEAR);intm=calendar.get(Calendar.MONTH)+1;intd=calendar.get(Calendar.DAY_OF_MONTH);newCalendarPad(y,m,d);NotePad类NotePad.javaimportjava.awt.*;importjava.awt.event.*;importjava.util.*;importjavax.swing.*;importjavax.swing.event.*;importjava.io.*;publicclassNotePadexten

19、dsJPanelimplementsActionListenerJTextAreatext;Hashtabletable;JLabelNews;intyear,month,day;Filefile;CalendarPadcalendar;publicNotePad(CalendarPadcalendar)this.calendar=calendar;year=calendar.getYear();month=calendar.getMonth();day=calendar.getDay();table=calendar.getHashtable();file=calendar.getFile(

20、);News=newJLabel(+year+年+month+月+day+日,JLabel.CENTER);News.setFont(newFont(TimesRoman,Font.BOLD,20);text=newJTextArea(10,15);setLayout(newBorderLayout();JPanelpSouth=newJPanel();add(News,BorderLayout.NORTH);add(pSouth,BorderLayout.SOUTH);add(newJScrollPane(text),BorderLayout.CENTER);publicvoidsetYea

21、r(intyear)this.year=year;publicintgetYear()returnyear;publicvoidsetMonth(intmonth)this.month=month;publicintgetMonth()returnmonth;publicvoidsetDay(intday)this.day=day;publicintgetDay()returnday;publicvoidsetNews(intyear,intmonth,intday)News.setText(+year+年+month+月+day+日);publicvoidsetText(Strings)te

22、xt.setText(s);publicvoidactionPerformed(ActionEvente)publicvoidSave(Filefile,intyear,intmonth,intday)/保留日记按钮事件实现StringLogCenter=text.getText();Stringkey=+year+month+day;tryFileInputStreaminOne=newFileInputStream(file);ObjectInputStreaminTwo=newObjectInputStream(inOne);table=(Hashtable)inTwo.readObje

23、ct();inOne.close();inTwo.close();catch(Exceptionee)if(table.containsKey(key)Stringm=+year+年+month+月+day+已存在日记，能否更新？;/是更新已有的日记intok=JOptionPane.showConfirmDialog(this,m,咨询,JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);if(ok=JOptionPane.YES_OPTION)tryFileInputStreaminOne=newFileInputStream(f

24、ile);ObjectInputStreaminTwo=newObjectInputStream(inOne);table=(Hashtable)inTwo.readObject();inOne.close();inTwo.close();table.remove(key);FileOutputStreamout=newFileOutputStream(file);ObjectOutputStreamobjectOut=newObjectOutputStream(out);objectOut.writeObject(table);objectOut.close();out.close();te

25、xt.setText(null);catch(Exceptionee)Stringf=日记已更新;JOptionPane.showMessageDialog(this,f,JOptionPane.WARNING_MESSAGE);提示elseStringm=+year+年+month+月+day+还没有日记，能否保留日记?;/保留还没有的日记intok=JOptionPane.showConfirmDialog(this,m,询问,JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);if(ok=JOptionPane.YES_OPTI

26、ON)tryFileInputStreaminOne=newFileInputStream(file);ObjectInputStreaminTwo=newObjectInputStream(inOne);table=(Hashtable)inTwo.readObject();inOne.close();inTwo.close();table.put(key,LogCenter);FileOutputStreamout=newFileOutputStream(file);ObjectOutputStreamobjectOut=newObjectOutputStream(out);objectO

27、ut.writeObject(table);objectOut.close();out.close();catch(Exceptionee)Stringf=日记保留成功;JOptionPane.showMessageDialog(this,f,提示,JOptionPane.WARNING_MESSAGE);publicvoidDelete(Filefile,intyear,intmonth,intday)/删除日记按钮事件实现Stringkey=+year+month+day;if(table.containsKey(key)Stringm=删除+year+年+month+月+day+日的日记

28、吗?;intyes=JOptionPane.showConfirmDialog(this,m,咨询,JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);if(yes=JOptionPane.YES_OPTION)tryFileInputStreaminOne=newFileInputStream(file);ObjectInputStreaminTwo=newObjectInputStream(inOne);table=(Hashtable)inTwo.readObject();inOne.close();inTwo.close();

29、table.remove(key);FileOutputStreamout=newFileOutputStream(file);ObjectOutputStreamobjectOut=newObjectOutputStream(out);objectOut.writeObject(table);objectOut.close();out.close();text.setText(null);catch(Exceptionee)Stringf=日记删除成功;JOptionPane.showMessageDialog(this,f,JOptionPane.WARNING_MESSAGE);提示el

30、seStringf=+year+年+month+月+day+无记录;JOptionPane.showMessageDialog(this,f,提示,JOptionPane.WARNING_MESSAGE);publicvoidRead(Filefile,intyear,intmonth,intday)/读取日记按钮事件实现Stringkey=+year+month+day;tryFileInputStreaminOne=newFileInputStream(file);ObjectInputStreaminTwo=newObjectInputStream(inOne);table=(Hasht

31、able)inTwo.readObject();inOne.close();inTwo.close();catch(Exceptionee)if(table.containsKey(key)Stringm=+year+年+month+月+day+已有日记,能否读取?;intok=JOptionPane.showConfirmDialog(this,m,咨询,JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);if(ok=JOptionPane.YES_OPTION)text.setText(String)table.get(key);

32、text.setText(+year+年+month+月+day+日的日记);elsetext.setText();elseStringf=+year+年+month+月+day+日，暂无记录;JOptionPane.showMessageDialog(this,f,提示,JOptionPane.WARNING_MESSAGE);Year类/Year.java其源代码为：importjavax.swing.*;importjava.awt.*;importjava.awt.event.*;publicclassYearextendsBoximplementsActionListenerinty

33、ear;JTextFieldshowYear=null;JButtonYear1,Year2;CalendarPadCAL;publicYear(CalendarPadCAL)super(BoxLayout.X_AXIS);showYear=newJTextField(4);showYear.setFont(newFont(TimesRomn,Font.BOLD,14);this.CAL=CAL;year=CAL.getYear();Year2=newJButton(下年);Year1=newJButton(上年);add(Year1);add(showYear);add(Year2);sho

34、wYear.addActionListener(this);Year1.addActionListener(this);Year2.addActionListener(this);/设置监督器publicvoidsetYear(intyear)this.year=year;showYear.setText(+year);publicintgetYear()returnyear;publicvoidactionPerformed(ActionEvente)/if(e.getSource()=Year1)/上年按钮year=year-1;showYear.setText(+year);CAL.se

35、tYear(year);CAL.setCalendar(year,CAL.getMonth();上下年按钮事件的实现elseif(e.getSource()=Year2)/year=year+1;下年按钮showYear.setText(+year);CAL.setYear(year);CAL.setCalendar(year,CAL.getMonth();elseif(e.getSource()=showYear)/输入年份tryyear=Integer.parseInt(showYear.getText();showYear.setText(+year);CAL.setYear(year);CAL.setCalendar(year,CAL.getMonth();catch(NumberFormatExceptionee)showYear.setText(+year);CAL.setYear(year);CAL.setCalendar(year,CAL.getMonth();Mo