java万年历程序

public Mycalendar(){import java.awt.*;import java.awt.event.*;import java.io.*;import java.text.DateFormat ;import java.text.SimpleDateFormat ;import java.util.Calendar ;import java.util.Date ;import javax.swing.*;import javax.swing.table.DefaultTableModel;public class Mycalendar extends JFrame implements ActionListener , MouseListener {private Calendar cld = Calendar .getInstance();private String [] astr = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};private DefaultTableModel dtm = new DefaultTableModel(null ,astr);private JTable table = new JTable(dtm); //装日期的表格private JScrollPane sp = new JScrollPane(table);private JButton bLastYear = new JButton("上一年");private JButton bNextYear = new JButton("下一年");private JButton bLastMonth = new JButton("上月");private JButton bNextMonth = new JButton("下月");private JTextField jtfYear = new JTextField(5);//jtfYear 年份显示和输入文本框private JTextField jtfMonth = new JTextField(2);//jtfMonth 月份显示文本框private JPanel p1 = new JPanel(); //装入控制日期按钮的模块private JPanel p2 = new JPanel();private JPanel p3 = new JPanel(new BorderLayout ());private JPanel p4 = new JPanel(new GridLayout (2,1));private JPanel p5 = new JPanel(new BorderLayout ());private JButton bAdd = new JButton("保存日志");private JButton bDel = new JButton("删除日志");private JTextArea jta = new JTextArea();private JScrollPane jsp = new JScrollPane(jta);//jta--JTextAreaprivate JLabel l = new JLabel("您可以在年份文本框中键入您要查找的年份");private JLabel lt = new JLabel();private JLabel ld = new JLabel();private int lastTime;super("万年历记事本"); //框架命名this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//窗口关闭函数this.getContentPane().setLayout(new BorderLayout(10, 0));jta.setLineWrap(true);table.setGridColor(Color.GRAY); //星期之间的网格线是灰色的table.setColumnSelectionAllowed(true);table.setSelectionBackground(Color.BLACK);//当选定某一天时这一天背景黑色table.setSelectionForeground(Color.RED);//选定的日期字体是绿色的table.setBackground(new Color(242,240,33));//日期显示表格颜色蓝色table.setFont(new Font("楷体",Font.BOLD,15));//日期数字字体格式table.setRowHeight(30);//表格的高度table.addMouseListener(this); //鼠标监听器jtfYear.addActionListener(this);//可输入年份的文本框//为各个按钮添加监听函数bAdd.addActionListener(this);bDel.addActionListener(this);bLastYear.addActionListener(this);bNextYear.addActionListener(this);bLastMonth.addActionListener(this);bNextMonth.addActionListener(this);//将按钮添加到Jpanel上p1.add(bLastYear);p1.add(jtfYear);//年份输入文本框p1.add(bNextYear);p1.add(bLastMonth);p1.add(jtfMonth);p1.add(bNextMonth);p2.add(bAdd);p2.add(bDel);p3.add(jsp, BorderLayout.CENTER);p3.add(p2, BorderLayout.SOUTH);p3.add(ld, BorderLayout.NORTH);p4.add(l);p4.add(lt);p5.add(p4, BorderLayout.SOUTH);p5.add(sp, BorderLayout.CENTER);p5.add(p1, BorderLayout.NORTH);this.getContentPane().add(p5, BorderLayout.CENTER);this.getContentPane().add(p3, BorderLayout.EAST);String [] strDate = DateFormat.getDateInstance().format(new Date()).split("-");//获得日期cld.set(Integer.parseInt(strDate[0]), Integer.parseInt(strDate[1])-1, 1);showCalendar(Integer.parseInt(strDate[0]), Integer.parseInt(strDate[1]), cld);jtfMonth.setEditable(false);//设置月份的文本框为不可编辑jtfYear.setText(strDate[0]);jtfMonth.setText(strDate[1]);this.showTextArea(strDate[2]);ld.setFont(new Font("楷体",Font.BOLD,14));new Timer(lt).start();this.setBounds(200,200,600,320);this.setResizable(false);this.setVisible(true);}public void showCalendar(int localYear, int localMonth, Calendar cld){int Days = getDaysOfMonth(localYear, localMonth) + cld.get(Calendar.DAY_OF_WEEK) - 2;Object [] ai = new Object[7];lastTime = 0;for (int i = cld.get(Calendar.DAY_OF_WEEK)-1; i <= Days; i++){ai[i%7] = String.valueOf(i- (cld.get(Calendar.DAY_OF_WEEK)-2));if (i%7 == 6){dtm.addRow(ai);ai = new Object[7];lastTime++;}}dtm.addRow(ai);}public int getDaysOfMonth(int year, int Month) //显示所选月份的天数{if(Month == 1 || Month == 3 || Month == 5 || Month == 7 || Month == 8 || Month == 10 || Month == 12){return 31;}if(Month == 4 || Month == 6 || Month == 9 || Month == 11){return 30;}if(year%4 == 0 && year%100 != 0 || year%400 == 0)//闰年{return 29;}else{return 28;}}public void actionPerformed(ActionEvent e){if(e.getSource() == jtfYear || e.getSource() == bLastYear || e.getSource() == bNextYear ||e.getSource() == bLastMonth || e.getSource() == bNextMonth){int m, y;try//控制输入的年份正确，异常控制{if (jtfYear.getText().length() != 4){throw new NumberFormatException();}y = Integer.parseInt(jtfYear.getText());m = Integer.parseInt(jtfMonth.getText());}catch (NumberFormatException ex){JOptionPane.showMessageDialog(this, "请输入位-9的数字！ ", "年份有误", JOptionPane.ERROR_MESSAGE);return ;}ld.setText("没有选择日期");for (int i = 0; i < lastTime+1; i++){ dtm.removeRow(0);}if(e.getSource() == bLastYear){ jtfYear.setText(String.valueOf(--y)); }if(e.getSource() == bNextYear){jtfYear.setText(String.valueOf(++y)); }if(e.getSource() == bLastMonth){if(m == 1){jtfYear.setText(String.valueOf(--y));m = 12;jtfMonth.setText(String.valueOf(m));}else{jtfMonth.setText(String.valueOf(--m));}}if(e.getSource() == bNextMonth){if(m == 12){jtfYear.setText(String.valueOf(++y));m = 1;jtfMonth.setText(String.valueOf(m));}else{jtfMonth.setText(String.valueOf(++m));}}cld.set(y, m-1, 0);showCalendar(y, m, cld);}if(e.getSource() == bAdd){int r = table.getSelectedRow();int c = table.getSelectedColumn();if(!ld.getText().equals("没有选择日期")){try{File file = new File(ld.getText() + ".txt");BufferedWriter bw=new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file)));bw.write(jta.getText());bw.close();}catch (FileNotFoundException ex){ex.printStackTrace();}catch (IOException ex){ex.printStackTrace();}}}if(e.getSource() == bDel){int r = table.getSelectedRow();int c = table.getSelectedColumn();File filedel = new File(ld.getText() + ".txt");if(filedel.exists()){if(filedel.delete()){jta.setText("日志删除成功");}else{jta.setText("日志删除失败");}}else{jta.setText("没有找到日志文件");}}}public void mouseClicked(MouseEvent e){jta.setText(null);int r = table.getSelectedRow();int c = table.getSelectedColumn();if (table.getValueAt(r,c) == null){ld.setText("没有选择日期");}else{this.showTextArea(table.getValueAt(r,c));}}public void mousePressed(MouseEvent e){}public void mouseReleased(MouseEvent e){}public void mouseEntered(MouseEvent e){}public void mouseExited(MouseEvent e){}private void showTextArea(Object selected){ld.setText(jtfYear.getText()+"年"+jtfMonth.getText()+"月"+selected+"日");File filein = new File(ld.getText() + ".txt");if(filein.exists()){try{BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(filein)));String strRead = br.readLine();jta.setText(null);while(strRead != null){jta.append(strRead);strRead = br.readLine();}br.close();}catch (FileNotFoundException ex){ex.printStackTrace();}catch (IOException ex){ex.printStackTrace();}}}public static void main(String[] args){JFrame.setDefaultLookAndFeelDecorated(true);JDialog.setDefaultLookAndFeelDecorated(true);new Mycalendar();}}class Timer extends Thread//显示系统时间{private JLabel lt;private SimpleDateFormat fy = new SimpleDateFormat("yyyy.MM.dd G 'at' HH:mm:ss z");private SimpleDateFormat fn = new SimpleDateFormat("yyyy.MM.dd G 'at' HH mm ss z");private boolean b = true;public Timer(JLabel lt){this.lt = lt;}public void run(){while (true){try{if (b){lt.setText(fy.format(new Date()));}else{lt.setText(fn.format(new Date()));}b = !b;this.sleep(500);}catch (InterruptedException ex){ex.printStackTrace();}}}}。