用Java實現(xiàn)歷記事本

1、用Java實現(xiàn)日歷記事本1 .實驗目的掌握RandomAccessFile類的使用；掌握字符輸入、輸出流和緩沖輸入、輸出流的使用。2 .實驗要求實驗前，應事先熟悉相關知識點，擬出相應的實驗操作步驟，明確實驗目的和要求；實驗過程中，服從實驗指導教師安排， 遵守實驗室的各項規(guī)章制度，愛護實驗儀器設備； 實驗操作完成后， 認真書寫實驗報告,總結(jié)實驗經(jīng)驗，分析實驗過程中出現(xiàn)的問題。3 .實驗內(nèi)容編程實現(xiàn)日歷記事本。具體要求如下：(1)該日歷可以通過在文本框中輸入年份和月份設置日期，也可按年前后翻動，用鼠標左鍵單擊“上 年”和“下年”按鈕，將當前日歷的年份減一和加一。還可以在某年內(nèi)按月前后翻動，用鼠標左

2、鍵單擊“上 月”和“下月”按鈕，將日歷的月份減一和加一。(2)左鍵單擊日歷上的日期，可以通過右側(cè)的記事本(文本區(qū))編輯有關日志，并將日志保存到一個 文件，該文件的名字是由當前日期組成的字符序列。用戶可以讀取、刪除某個日期的日志，也可以繼續(xù)向某 個日志添加新的內(nèi)容。在保存、刪除和讀取日志時都會先彈出一個確認對話框，以確認保存、刪除和讀取操 作。(3)當某個日期有日志時，該日期以粗體16號字顯示，表明這個日期有日志；當用戶刪除某個日期的日志后，該日期恢復原來的外觀。實現(xiàn)效果圖（參考）如下:提示：（1）組件調(diào)用 public void setFont（Font?f）方法可以設置組件上的字體，F(xiàn)ont

3、類的構(gòu)造方法為：public Font（String?name,int?style,int?size）,其中 name 是字體的名字，style 決定字體的樣式（如 Font.BOLD表示粗體）size決定字體的大小。（具體請參考JDK API）（2）當左鍵單擊日歷上的日期時，如要獲取該日期，可通過處理該組件上的鼠標事件來實現(xiàn)。4 .實驗步驟、實施過程、關鍵代碼、實驗結(jié)果及分析說明等1. CalendarPad 類(1)進行整體布局，建立日歷記事本文件，設置日歷卡，把日期按星期順序排列， 并用窗口監(jiān)視器實現(xiàn)。(2)用窗口監(jiān)視器實現(xiàn)，結(jié)果如下：2. Notepad 類(1)對日期的設置和獲取，設

4、置信息條，對文本框進行設置，保存日志、刪除日志 和讀取日志按鈕的事件實現(xiàn)。(2)保存日志按鈕事件實現(xiàn)如下：(3)讀取日志按鈕事件實現(xiàn)如下：(4.)刪除日志按鈕事件實現(xiàn)如下:3. Year 類(1)輸入年份可以實現(xiàn)輸出,給上下年按鈕設置監(jiān)視器，對上下年按鈕事件的實現(xiàn)。(2)其結(jié)果如下：4. Month 類(1)設置上下月監(jiān)視器， 對上下月按鈕的事件實現(xiàn)，區(qū)分閏年和平年，對天數(shù)不同的月份進行分類。(2)其結(jié)果如下：(續(xù)上頁，可加頁) 5 各個類的源代碼如下： CalendarPad 類： CalendarPad.java import javax.swing.*; import java.awt*

5、; import java.io.*;public class CalendarPad extends JFrame implements MouseListener,ActionListener int year,month,day; Hashtable hashtable;JButton Save,Delete,Read;File file;JTextField showDay口； 兒abel title口； Calendar Date; int Weekday;NotePad notepad=null;Month ChangeMonth;Year ChangeYear ;String w

6、eek=" 星期日","星期一","星期二","星期三","星期四","星期五","星 期六JPanel leftPanel,rightPanel;public CalendarPad(int year,int month,int day) leftPanel=new JPanel();JPanel leftCenter=new JPanel();JPanel leftNorth=new JPanel();leftCenter.setLayout(new GridL

7、ayout(7,7); rightPanel=new JPanel();this.year=year;this.month=month; this.day=day;ChangeYear=new Year(this);ChangeYear.setYear(year);ChangeMonth=new Month(this); ChangeMonth.setMonth(month); title=new JLabel7;showDay=new JTextField42;for(int j=0;j<7;j+) titlej=new JLabel();titlej.setText(weekj);t

8、itlej.setBorder(BorderFactory.createRaisedBevelBorder(); titlej.setForeground(Color.blue);leftCenter.add(titlej);for(int i=0;i<42;i+) showDayi=new JTextField();showDayi.addMouseListener(this);showDayi.setEditable(false); leftCenter.add(showDayi); Save=new JButton(" 保存日志");Delete=new JBu

9、tton(" 刪除日志");Read=new JButton(" 讀取日志");Read.addActionListener(this);Save.addActionListener(this);Delete.addActionListener(this); /設置監(jiān)視器JPanel pSouth=new JPanel(); pSouth.add(Save); pSouth.add(Delete); pSouth.add(Read); Date=Calendar.getInstance(); Box box=Box.createHorizontalBox

10、(); box.add(ChangeYear); box.add(ChangeMonth); leftNorth.add(box); leftPanel.setLayout(new BorderLayout();add(leftNorth,BorderLayout.NORTH);leftPanel.add(leftCenter,BorderLayout.CENTER); add(pSouth,BorderLayout.SOUTH); leftPanel.validate();notepad=new NotePad(this);rightPanel.add(notepad);Container

11、con=getContentPane();JSplitPane split=new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, leftPanel,rightPanel);con.add(split,BorderLayout.CENTER);/進行整體布局con.validate(); hashtable=new Hashtable(); file=new File(" 日歷記事本.txt"); if(!file.exists() tryFileOutputStream out=new FileOutputStream(file);Obj

12、ectOutputStream objectOut=new ObjectOutputStream(out); objectOut.writeObject(hashtable);objectOut.close(); out.close(); catch(IOException e)。setCalendar(year,month);addWindowListener(new WindowAdapter() /設置窗口 監(jiān)視器public void windowClosing(WindowEvent e) System.exit(O);)；setVisible(true);setBounds(100

13、,60,524,335);validate。；public void actionPerformed(ActionEvent e) if(e.getSource()=Save) notepad.Save(file,year,month,day);else if(e.getSource()=Delete) notepad.Delete(file,year,month,day);else if(e.getSource()=Read) notepad.Read(file,year,month,day);public void setCalendar(int year,int month) /設置日歷

14、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);else if(month=4|month=6|month=9|month=11) Arrange(Weekday,30);else if(month=2) if(year%4=0&&year%100!=0)|(year%400=0) Arrange(Weekday,

15、29);else Arrange(Weekday,28);public void Arrange(int Weekday,int Monthday) /把日期，按星期排列for(int i=Weekday,n=1;i<Weekday+Monthday;i+) showDayi.setText(""+n);if(n=day) showDayi.setForeground(Color.blue);showDayi.setFont(new Font("TimesRoman",Font.BOLD,20); else showDayi.setFont(new

16、 Font("TimesRoman",Font.BOLD,12);showDayi.setForeground(Color.black);n+;for(int i=0;i<Weekday;i+) showDayi.setText("");for(int i=Weekday+Monthday;i<42;i+) showDayi.setText("");public int getYear() return year;public void setYear(int y) year=y;notepad.setYear(year)

17、;public int getMonth() return month;public void setMonth(int m) month=m;notepad.setMonth(month);public int getDay() return day;public void setDay(int d) day=d;notepad.setDay(day);public Hashtable getHashtable() return hashtable;public File getFile() return file;public void mousePressed(MouseEvent e)

18、 JTextField source=(JTextField)e.getSource();try day=Integer.parseInt(source.getText();notepad.setDay(day);notepad.setNews(year,month,day);notepad.setText(null);catch(Exception ee) public void mouseClicked(MouseEvent e)public void mouseReleased(MouseEvent e)public void mouseExited(MouseEvent e)publi

19、c void mouseEntered(MouseEvent e)public static void main(String args) Calendar calendar=Calendar.getInstance();int y=calendar.get(Calendar.YEAR);int m=calendar.get(Calendar.MONTH)+1;int d=calendar.get(Calendar.DAY_OF_MONTH);new CalendarPad(y,m,d);NotePad 類/ NotePad.javaimport java.awt*;import java.u

20、til.*;import javax.swing.*;import java.io.*;public class NotePad extends JPanel implements ActionListener JTextArea text;Hashtable table;JLabel News;int year,month,day;File file;CalendarPad calendar;public NotePad(CalendarPad calendar) this.calendar=calendar;year=calendar.getYear();month=calendar.ge

21、tMonth();day=calendar.getDay();table=calendar.getHashtable();file=calendar.getFile();News=new JLabel(""+year+"年"+month+"月"+day+"日",JLabel.CENTER);News.setFont(new Font("TimesRoman",Font.BOLD,20);text=new JTextArea(10,15);setLayout(new BorderLayout();

22、JPanel pSouth=new JPanel();add(News,BorderLayout.NORTH);add(pSouth,BorderLayout.SOUTH);add(new JScrollPane(text),BorderLayout.CENTER);public void setYear(int year) this.year=year;public int getYear() return year;public void setMonth(int month) this.month=month;public int getMonth() return month;publ

23、ic void setDay(int day) this.day=day;public int getDay() return day;public void setNews(int year,int month,int day) News.setText(""+year+" 年"+month+"月"+day+"日");public void setText(String s) text.setText(s);public void actionPerformed(ActionEvent e) public voi

24、d Save(File file,int year,int month,int day) /保存日志按鈕事件實現(xiàn)String LogCenter=text.getText();String key=""+year+""+month+""+day;try FileInputStream inOne=new FileInputStream(file);ObjectInputStream inTwo=new ObjectInputStream(inOne);table=(Hashtable)inTwo.readObject();inOne.

25、close();inTwo.close();catch(Exception ee)。if(table.containsKey(key) String m=""+year+"年"+month+"月"+day+”已存在日志，是否更新？"/是更新已有的日志intok=JOptionPane.showConfirmDialog(this,m,”詢 問”,JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);if(ok=JOptionPane.YES_OPTION) try F

26、ileInputStream inOne=new FileInputStream(file);ObjectInputStream inTwo=new ObjectInputStream(inOne);table=(Hashtable)inTwo.readObject();inOne.close();inTwo.close();table.remove(key);FileOutputStream out=new FileOutputStream(file);ObjectOutputStream objectOut=new ObjectOutputStream(out);objectOut.wri

27、teObject(table);objectOut.close();out.close();text.setText(null);catch(Exception ee)String f="日志已更新"JOptionPane.showMessageDialog(this,f,"提示”,JOptionPane.WARNING_MESSAGE); else String m=""+year+"年"+month+"月"+day+"還沒有日志，是否保存日志 ？”；/保存還沒有的日志intok=JOptio

28、nPane.showConfirmDialog(this,m,”詢 問",JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);if(ok=JOptionPane.YES_OPTION) try FileInputStream inOne=new FileInputStream(file);ObjectInputStream inTwo=new ObjectInputStream(inOne);table=(Hashtable)inTwo.readObject();inOne.close();inTwo.close();tab

29、le.put(key,LogCenter);FileOutputStream out=new FileOutputStream(file);ObjectOutputStream objectOut=new ObjectOutputStream(out);objectOut.writeObject(table);objectOut.close();out.close();catch(Exception ee)。String f=" 日志保存成功"JOptionPane.showMessageDialog(this,f,"提示”,JOptionPane.WARNING

30、_MESSAGE); public void Delete(File file,int year,int month,int day) /刪除日志按鈕事件實現(xiàn)String key=""+year+""+month+""+day;if(table.containsKey(key) String m=" 刪除"+year+"年"+month+"月"+day+”日的日志嗎？”；intyes=JOptionPane.showConfirmDialog(this,m,” 詢 問”,JO

31、ptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);if(yes=JOptionPane.YES_OPTION) try FileInputStream inOne=new FileInputStream(file); ObjectInputStream inTwo=new ObjectInputStream(inOne); table=(Hashtable)inTwo.readObject();inOne.close();inTwo.close();table.remove(key);FileOutputStream out=new F

32、ileOutputStream(file);ObjectOutputStream objectOut=new ObjectOutputStream(out);objectOut.writeObject(table);objectOut.close();out.close();text.setText(null); catch(Exception ee) String f="日志刪除成功"JOptionPane.showMessageDialog(this,f,"提示”,JOptionPane.WARNING_MESSAGE); else String f=&quo

33、t;"+year+""+month+" "+day+"無記錄"JOptionPane.showMessageDialog(this,f,"提示”,JOptionPane.WARNING_MESSAGE); public void Read(File file,int year,int month,int day) /讀取日志按鈕事件實現(xiàn)String key=""+year+""+month+""+day;try FileInputStream inOne=

34、new FileInputStream(file);ObjectInputStream inTwo=new ObjectInputStream(inOne);table=(Hashtable)inTwo.readObject();inOne.close();inTwo.close();catch(Exception ee)if(table.containsKey(key) String m=""+year+" 年"+month+"月"+day+”已有日志，是否讀?。俊?；intok=JOptionPane.showConfirmDial

35、og(this,m,”詢 問”,JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);if(ok=JOptionPane.YES_OPTION) text.setText(String)table.get(key);text.setText(""+year+"年"+month+"月"+day+"日的日志");else text.setText(""); else String f=""+year+" 年&qu

36、ot;+month+"月"+day+”日，暫無記錄”；JOptionPane.showMessageDialog(this,f,"提示”,JOptionPane.WARNING_MESSAGE); Year 類 /Year.java 其源代碼為： import javax.swing.*; import java.awt.*; public class Year extends Box implements ActionListener int year;JTextField showYear=null;JButton Year1,Year2;CalendarPa

37、d CAL;public Year(CalendarPad CAL) super(BoxLayout.X_AXIS);showYear=new JTextField(4);showYear.setFont(new Font("TimesRomn",Font.BOLD,14); this.CAL=CAL;year=CAL.getYear();Year2=new JButton("下年)Year1=new JButton("上年) add(Year1);add(showYear);add(Yea；showYear.addActionListener(this

38、);Year1.addActionListener(this);Year2.addActionListener(this);/設置監(jiān)視器public void setYear(int year) this.year=year;showYear.setText(""+year);public int getYear() return year;public void actionPerformed(ActionEvent e) 上下年按鈕事件的實現(xiàn)if(e.getSource()=Year1) / 上年按鈕year=year-1;showYear.setText("

39、"+year);CAL.setYear(year);CAL.setCalendar(year,CAL.getMonth();else if(e.getSource()=Year2) / 下年按鈕 year=year+1;showYear.setText(""+year);CAL.setYear(year);CAL.setCalendar(year,CAL.getMonth(); else if(e.getSource()=showYear) 輸入年份 try year=Integer.parseInt(showYear.getText();showYear.setText(""+year);CAL.setYear(year);CAL.setCalendar(year,CAL.getMonth(); catch(NumberFormatException ee) showYear.setText(""+year);CAL.setYear(year);CAL.setCalendar(year,CAL.getMonth(); Month