用Java实现日历记事本

1、用Java实现日历记事本信息与计算科学专业课程设计用Java实现日历记事本1 .实验目的掌握RandomAccessFile类的使用；掌握字符输入、输出流和缓冲输入、输出流的使用。2 .实验要求实验前，应事先熟悉相关知识点，拟出相应的实验操作步骤，明确实验目的和要求；实验过程中，服从实验指导教师安排，遵守实验室的各项规章制度，爱护实验仪器设备；实验操作完成后，认真书写实验报告，总结实验经验，分析实验过程中出现的问题。3 .实验内容编程实现日历记事本。具体要求如下：(1)该日历可以通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，将当前日历的年份减一和

2、加一。还可以在某年内按月前后翻动，用鼠标左键单击“上月”和“下月”按钮，将日历的月份减一和加一。(2)左键单击日历上的日期，可以通过右侧的记事本(文本区)编辑有关日志，并将日志保存到一个文件，该文件的名字是由当前日期组成的字符序列。用户可以读取、删除某个日期的日志，也可以继续向某个日志添加新的内容。在保存、删除和读取日志时都会先弹出一个确认对话框，以确认保存、删除和读取操作。(3)当某个日期有日志时，该日期以粗体16号字显示，表明这个日期有日志；当用户删除某个日期的日志后，该日期恢复原来的外观。实现效果图（参考）如下:提示：（1）组件调用publicvoidsetFont（Fontf）方法可以

3、设置组件上的字体，Font类的构造方法为：publicFont（Stringname,intstyle,intsize）,其中name是字体的名字，style决定字体的样式（如Font.BOLD表示粗体）size决定字体的大小。（具体请参考JDKAPI）（2）当左键单击日历上的日期时，如要获取该日期，可通过处理该组件上的鼠标事件来实现。4 .实验步骤、实施过程、关键代码、实验结果及分析说明等1. CalendarPad类(1)进行整体布局，建立日历记事本文件，设置日历卡，把日期按星期顺序排列，并用窗口监视器实现。(2)用窗口监视器实现，结果如下：2. Notepad类1)对日期的设置和获取，设

4、置信息条，对文本框进行设置，保存日志、删除日志和读取日志按钮的事件实现(2)保存日志按钮事件实现如下:(3)读取日志按钮事件实现如下:图-X上年2017下年坛11下月(4.)删除日志按钮事件实现如下:上月11星翻二星题三星期四星鼬五星划六上年2017千年3星射日星第一5618121314151920211226272829g1623下月2017年11月23H1118保存日志，删日志读取日志3Year类(1)输入年份可以实现输出，给上下年按钮设置监视器，对上下年按钮事件的实现。(2)其结果如下：4.Month类(1)设置上下月监视器，对上下月按钮的事件实现区分闰年和平年，对天数不同的月份进行分类

5、。(2)其结果如下：上年201下年上月10下月二，555T二二二一二3.5'20VM0JJ15II保存日志删除日志读取日志extendsJFrameimplements星期二","星期三","星期四","星期五(续上页，可加页)5各个类的源代码如下：CalendarPad类：/CalendarPad.javaimportjava.util.Calendar;importjavax.swing.*;importjava.awt.*;importjava.awt.event.*;importjava.io.*;importjava

6、.util.Hashtable;publicclassCalendarPadMouseListener,ActionListenerintyear,month,day;Hashtablehashtable;JButtonSave,Delete,Read;Filefile;JTextFieldshowDay口；儿abeltitle口；CalendarDate;intWeekday;NotePadnotepad=null;MonthChangeMonth;YearChangeYear;Stringweek="星期日","星期一","星期六"

7、;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);ChangeYear.setYear

8、(year);ChangeMonth=newMonth(this);ChangeMonth.setMonth(month);title=newJLabel7;showDay=newJTextField42;for(intj=0;j<7;j+)titlej=newJLabel();titlej.setText(weekj);titlej.setBorder(BorderFactory.createRaisedBevelBorder();titlej.setForeground(Color.blue);leftCenter.add(titlej);for(inti=0;i<42;i+)

9、showDayi=newJTextField();showDayi.addMouseListener(this);showDayi.setEditable(false);leftCenter.add(showDayi);Save=newJButton("保存日志");Delete=newJButton("删除日志");Read=newJButton("读取日志");Read.addActionListener(this);Save.addActionListener(this);Delete.addActionListener(thi

10、s);/设置监视器JPanelpSouth=newJPanel();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(leftCe

11、nter,BorderLayout.CENTER);add(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();hashta

12、ble=newHashtable();file=newFile("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(

13、newWindowAdapter()/设置窗口监视器publicvoidwindowClosing(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(

14、e.getSource()=Read)notepad.Read(file,year,month,day);publicvoidsetCalendar(intyear,intmonth)/设置日历卡Date.set(year,month-1,1);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)Arrang

15、e(Weekday,30);)elseif(month=2)if(year%4=0&&year%100!=0)|(year%400=0)Arrange(Weekday,29);)elseArrange(Weekday,28);publicvoidArrange(intWeekday,intMonthday)/把日期，按星期排列FoFofor(inti=Weekday,n=1;i<Weekday+Monthday;i+)showDayi.setText(""+n);if(n=day)showDayi.setForeground(Color.blue);s

16、howDayi.setFont(newnt("TimesRoman",Font.BOLD,20);)elseshowDayi.setFont(newnt("TimesRoman",Font.BOLD,12);showDayi.setForeground(Color.black);)n+;)for(inti=0;i<Weekday;i+)showDayi.setText("");)for(inti=Weekday+Monthday;i<42;i+)showDayi.setText("");)publici

17、ntgetYear()returnyear;)publicvoidsetYear(inty)year=y;notepad.setYear(year);)publicintgetMonth()returnmonth;)publicvoidsetMonth(intm)month=m;notepad.setMonth(month);)publicintgetDay()returnday;)publicvoidsetDay(intd)day=d;notepad.setDay(day);)publicHashtablegetHashtable()returnhashtable;)publicFilege

18、tFile()returnfile;)publicvoidmousePressed(MouseEvente)JTextFieldsource=(JTextField)e.getSource();tryday=Integer.parseInt(source.getText();notepad.setDay(day);notepad.setNews(year,month,day);notepad.setText(null);)catch(Exceptionee)publicvoidmouseClicked(MouseEvente)publicvoidmouseReleased(MouseEvent

19、e)publicvoidmouseExited(MouseEvente)publicvoidmouseEntered(MouseEvente)publicstaticvoidmain(Stringargs)Calendarcalendar=Calendar.getInstance();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.javaimpo

20、rtjava.awt*;importjava.awt.event.*;importjava.util.*;importjavax.swing.*;importjavax.swing.event.*;importjava.io.*;publicclassNotePadextendsJPanelimplementsActionListenerJTextAreatext;Hashtabletable;JLabelNews;intyear,month,day;Filefile;CalendarPadcalendar;publicNotePad(CalendarPadcalendar)this.cale

21、ndar=calendar;year=calendar.getYear();month=calendar.getMonth();day=calendar.getDay();table=calendar.getHashtable();file=calendar.getFile();News=new儿abel(""+year+"年"+month+"月"+day+"日",JLabel.CENTER);News.setFont(newFont("TimesRoman",Font.BOLD,20);tex

22、t=newJTextArea(10,15);setLayout(newBorderLayout();JPanelpSouth=newJPanel();add(News,BorderLayout.NORTH);add(pSouth,BorderLayout.SOUTH);add(newJScrollPane(text),BorderLayout.CENTER);publicvoidsetYear(intyear)this.year=year;)publicintgetYear()returnyear;)publicvoidsetMonth(intmonth)this.month=month;)p

23、ublicintgetMonth()returnmonth;)publicvoidsetDay(intday)this.day=day;)publicintgetDay()returnday;)publicvoidsetNews(intyear,intmonth,intday)News.setText(""+year+"年"+month+"月"+day+"日");)publicvoidsetText(Strings)text.setText(s);)publicvoidactionPerformed(ActionE

24、vente)保存日志按publicvoidSave(Filefile,intyear,intmonth,intday)/钮事件实现StringLogCenter=text.getText();Stringkey=""+year+""+month+""+day;tryFileInputStreaminOne=newFileInputStream(file);ObjectInputStreaminTwo=newObjectInputStream(inOne);table=(Hashtable)inTwo.readObject();inOn

25、e.close();inTwo.close();catch(Exceptionee)if(table.containsKey(key)String/是更新已有的日志intm=""+year+""+month+""+day+""ok=JOptionPane.showConfirmDialog(this,m,”,JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);if(ok=JOptionPane.YES_OPTION)tryFileInputStreamin

26、One=newFileInputStream(file);ObjectInputStreaminTwo=newObjectInputStream(inOne);table=(Hashtable)inTwo.readObject();inOne.close();inTwo.close();table.remove(key);FileOutputStreamout=newFileOutputStream(file);ObjectOutputStreamobjectOut=newObjectOutputStream(out);objectOut.writeObject(table);objectOu

27、t.close();out.close();text.setText(null);catch(Exceptionee)Stringf="日志已更新"JOptionPane.showMessageDialog(this,f,"OptionPane.WARNING_MESSAGE);年"+month+"月"+day+"还没有日志，是否保存日志?"elseStringm=""+year+"/呆存还没有的日志intok=JOptionPane.showConfirmDialog(this,m,

28、"OptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);if(ok=JOptionPane.YES_OPTION)tryFileInputStreaminOne=newFileInputStream(file);ObjectInputStreaminTwo=newObjectInputStream(inOne);table=(Hashtable)inTwo.readObject();inOne.close();inTwo.close();table.put(key,LogCenter);FileOutputStreamout=n

29、ewFileOutputStream(file);ObjectOutputStreamobjectOut=newObjectOutputStream(out);objectOut.writeObject(table);objectOut.close();out.close();)catch(Exceptionee)Stringf="日志保存成功"JOptionPane.showMessageDialog(this,f,"提”,JOptionPane.WARNING_MESSAGE);publicvoidDelete(Filefile,intyear,intmont

30、h,intday)/删除日志按钮事件实现Stringkey=""+year+""+month+""+day;if(table.containsKey(key)Stringm="删除"+year+"年"+month+"月"+day+”日的日志吗?"intyes=JOptionPane.showConfirmDialog(this,m,”询”,JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);if(yes=J

31、OptionPane.YES_OPTION)tryFileInputStreaminOne=newFileInputStream(file);ObjectInputStreaminTwo=newObjectInputStream(inOne);table=(Hashtable)inTwo.readObject();inOne.close();inTwo.close();table.remove(key);FileOutputStreamout=newFileOutputStream(file);ObjectOutputStreamobjectOut=newObjectOutputStream(

32、out);objectOut.writeObject(table);objectOut.close();out.close();text.setText(null);catch(Exceptionee)Stringf="日志删除成功"JOptionPane.showMessageDialog(this,f,"提”,JOptionPane.WARNING_MESSAGE);elseStringf=""+year+"年"+month+"月"+day+"无记录"JOptionPane.sho

33、wMessageDialog(this,f,”,JOptionPane.WARNING_MESSAGE);读取日志publicvoidRead(Filefile,intyear,intmonth,intday)/按钮事件实现Stringkey=""+year+""+month+""+day;tryFileInputStreaminOne=newFileInputStream(file);ObjectInputStreaminTwo=newObjectInputStream(inOne);table=(Hashtable)inTwo.r

34、eadObject();inOne.close();inTwo.close();catch(Exceptionee)if(table.containsKey(key)Stringm=""+year+"年"+month+"月"+day+”已有日志,是否读取？”;intok=JOptionPane.showConfirmDialog(this,m,”OptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);if(ok=JOptionPane.YES_OPTION)text.setText

35、(String)table.get(key);II);text.setText(""+year+"年"+month+"月"+day+”日的日志elsetext.setText("");elseStringf=""+year+"年"+month+"月"+day+”日，暂无记录"JOptionPane.showMessageDialog(this,f,”OptionPane.WARNING_MESSAGE);Year类/Year.java其源代码为:

36、importjavax.swing.*;importjava.awt.*;importjava.awt.event.*;publicclassYearextendsBoximplementsActionListenerintyear;JTextFieldshowYear=null;JButtonYear1,Year2;CalendarPadCAL;publicYear(CalendarPadCAL)super(BoxLayout.X_AXIS);showYear=newJTextField(4);FthshowYear.setFont(newont("TimesRomn",

37、Font.BOLD,14);is.CAL=CAL;year=CAL.getYear();Year2=newJButton("下年")；Year1=newJButton("上年")；add(Year1);add(showYear);add(Year2);showYear.addActionListener(this);Year1.addActionListener(this);Year2.addActionListener(this);设置监视器publicvoidsetYear(intyear)this.year=year;showYear.setTex

38、t(""+year);)publicintgetYear()returnyear;)/publicvoidactionPerformed(ActionEvente)上下年按钮事件的实现if(e.getSource()=Year1)上年按钮year=year-1;showYear.setText(""+year);CAL.setYear(year);CAL.setCalendar(year,CAL.getMonth();)elseif(e.getSource()=Year2)下年按钮year=year+1;showYear.setText("&q

39、uot;+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();)Month类/