题目：具有每日记账功能的简易日历程序

import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.text.SimpleDateFormat; import java.util.*; public class MyCalendar extends JFrame implements ActionListener{ Map<Integer,Note> noteMap=new HashMap<>(); //面板容器 private final JPanel YearMonthJpl = new JPanel(); private final JPanel WeekJpl = new JPanel(); private final JPanel DateJpl = new JPanel(); //年份滑动选择 private final JSpinner YearSpinner = new JSpinner(); //月份下拉选择 private final JComboBox<Integer> MonthComBox = new JComboBox<>(); //年月的标签 private final JLabel YearLbl = new JLabel("Year"); private final JLabel MonthLbl = new JLabel("Month"); private final JLabel currentLbl =new JLabel(); private final JMenuBar menuBar=new JMenuBar(); private final JMenu SearchMenu=new JMenu("Search"); private final JMenu CountMenu=new JMenu("Count For This Month"); private final JMenu CheckMenu=new JMenu("Check"); private final JMenuItem check_time=new JMenuItem("check time"); private final JMenuItem search_by_id_item=new JMenuItem("search by id"); private final JMenuItem search_by_keys_item=new JMenuItem("search by keys"); private final JMenuItem count_by_type_item=new JMenuItem("count by type"); private final JMenuItem count_by_keys_item=new JMenuItem("count by keys"); private final JPanel searchJpl=new JPanel(); private final JTextField searchTf=new JTextField(20); JDialog noteDialog=new JDialog(this,"note",false); JPanel noteJpl=new JPanel(); public void init(){ YearSpinner.setPreferredSize(new Dimension(50,30)); MonthComBox.setPreferredSize(new Dimension(50,30)); YearSpinner.setToolTipText("input year"); MonthComBox.setToolTipText("select month"); searchTf.setToolTipText("input sth and click the menu to search"); searchJpl.setBounds(12,0,7*Const.SIZE,Const.SIZE); YearMonthJpl.setBounds(12,Const.SIZE,7*Const.SIZE,Const.SIZE); WeekJpl.setBounds(12,2*Const.SIZE,7*Const.SIZE,Const.SIZE); DateJpl.setLocation(12,3*Const.SIZE); YearMonthJpl.add(YearSpinner); YearMonthJpl.add(YearLbl); YearMonthJpl.add(MonthComBox); YearMonthJpl.add(MonthLbl); Box searchBox = Box.createVerticalBox(); searchBox.add(searchTf); searchBox.add(currentLbl); searchJpl.add(searchBox); Calendar currentCalendar=Calendar.getInstance(); currentLbl.setText("Date Now "+currentCalendar.get(Calendar.YEAR)+"."+(currentCalendar.get(Calendar.MONTH)+1)+"."+currentCalendar.get(Calendar.DATE)); this.add(YearMonthJpl); this.add(WeekJpl); this.add(DateJpl); this.add(searchJpl); this.addYear(); this.addMonth(); this.addWeeks(); this.addDays(); this.setJMenuBar(menuBar); menuBar.add(SearchMenu); menuBar.add(CountMenu); menuBar.add(CheckMenu); SearchMenu.add(search_by_id_item); SearchMenu.add(search_by_keys_item); CountMenu.add(count_by_keys_item); CountMenu.add(count_by_type_item); CheckMenu.add(check_time); search_by_id_item.addActionListener(e -> { int id=Integer.parseInt(searchTf.getText()); noteJpl.removeAll(); noteJpl.repaint(); createNoteDialog(id); }); search_by_keys_item.addActionListener(e -> { noteJpl.removeAll(); noteJpl.repaint(); String key=searchTf.getText(); for(Map.Entry<Integer,Note> entry : noteMap.entrySet()){ String[] keys=entry.getValue().keys; for(String i :keys) { if ((i==null)) continue; if(i.equals(key)){ createNoteDialog(entry.getKey()); } } } }); count_by_type_item.addActionListener(e -> { Calendar calendar = Calendar.getInstance(); int year=getSelectedYear(); int month=getSelectedMonth(); calendar.set(Calendar.YEAR,year); calendar.set(Calendar.MONTH,month-1); calendar.set(Calendar.DATE,1); int days = calendar.getActualMaximum(Calendar.DAY_OF_MONTH); Map<Integer,Integer> typeMap=new HashMap<>(); for (int i = 1; i <= days; i++) { int id=Integer.parseInt(year+""+month+""+i); Note note=noteMap.get(id); if(note==null) continue; if(!typeMap.containsKey(note.getType())) typeMap.put(note.getType(),note.getCost()); else typeMap.put(note.getType(),typeMap.get(note.getType())+note.getCost()); } JDialog countDialog = new JDialog(this,"count by type"); JTextArea countTa= new JTextArea("Count For This Month:\n",10,10); countTa.setEditable(false); for(Map.Entry<Integer,Integer> entry :typeMap.entrySet()) countTa.setText(countTa.getText()+ Const.TYPE_NAME[entry.getKey()]+": "+entry.getValue()+"\n"); if(typeMap.isEmpty()) countTa.setText(countTa.getText()+"None"); countDialog.add(countTa,BorderLayout.CENTER); countDialog.setBounds(Const.FRAME_X,Const.FRAME_Y,6*Const.SIZE,6*Const.SIZE); countDialog.setVisible(true); }); count_by_keys_item.addActionListener(e->{ Calendar calendar = Calendar.getInstance(); int year=getSelectedYear(); int month=getSelectedMonth(); calendar.set(Calendar.YEAR,year); calendar.set(Calendar.MONTH,month-1); calendar.set(Calendar.DATE,1); int days = calendar.getActualMaximum(Calendar.DAY_OF_MONTH); Map<String,Integer> keysMap=new HashMap<>(); for (int i = 1; i <= days; i++) { int id=Integer.parseInt(year+""+month+""+i); Note note=noteMap.get(id); if(note==null) continue; for(String key : note.keys){ if(key==null) continue; if(!keysMap.containsKey(key)) keysMap.put(key,note.getCost()); else keysMap.put(key,keysMap.get(key)+note.getCost()); } } JDialog countDialog = new JDialog(this,"count by keys"); JTextArea countTa= new JTextArea("Count For This Month:\n",10,10); countTa.setEditable(false); for(Map.Entry<String,Integer> entry :keysMap.entrySet()) countTa.setText(countTa.getText()+ entry.getKey()+": "+entry.getValue()+"\n"); if(keysMap.isEmpty()) countTa.setText(countTa.getText()+"None"); countDialog.add(countTa,BorderLayout.CENTER); countDialog.setBounds(Const.FRAME_X,Const.FRAME_Y,6*Const.SIZE,6*Const.SIZE); countDialog.setVisible(true); }); check_time.addActionListener(e -> { SimpleDateFormat formatter= new SimpleDateFormat("yyyy-MM-dd 'at' HH:mm:ss "); Date date = new Date(System.currentTimeMillis()); JOptionPane.showMessageDialog(this,"Time Now: "+formatter.format(date)); }); this.setTitle("Calendar"); this.setBounds(Const.FRAME_X,Const.FRAME_Y,Const.FRAME_WIDTH,Const.FRAME_HEIGHT+Const.SIZE); /