java布局与日历java程序

以下是一个简单的Java布局与日历的Java程序示例，展示了如何使用Java Swing库和Java日期和时间相关的类库，创建一个基本的日历应用程序。这个程序可以让用户选择日期和时间，查看月视图和周视图，添加、编辑和删除事件，以及设置程序的外观和行为参数。请注意，这个示例程序仅供参考，实际上还有很多需要完善的地方。

import java.awt.*;
import java.awt.event.*;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import javax.swing.*;
import javax.swing.border.*;

public class CalendarApp extends JFrame implements ActionListener, ItemListener {
    private static final long serialVersionUID = 1L;
    private JMenuBar menuBar; // 菜单栏
    private JMenu fileMenu, editMenu, viewMenu, helpMenu; // 菜单
    private JMenuItem newItem, openItem, saveItem, saveAsItem, exitItem; // 文件菜单项
    private JMenuItem undoItem, redoItem, cutItem, copyItem, pasteItem, selectAllItem; // 编辑菜单项
    private JCheckBoxMenuItem monthView, weekView; // 查看菜单项
    private JMenuItem aboutItem; // 帮助菜单项
    private JPanel topPanel, calendarPanel, eventPanel; // 主面板、日历面板和事件面板
    private JLabel timeLabel, monthLabel, yearLabel; // 日期时间标签、月份标签和年份标签
    private JComboBox<String> monthBox, yearBox; // 月份下拉框和年份下拉框
    private JButton prevMonthButton, nextMonthButton, addEventButton, editEventButton, deleteEventButton; // 上个月按钮、下个月按钮、添加事件按钮、编辑事件按钮和删除事件按钮
    private JTable eventTable; // 事件列表
    private DefaultTableModel eventTableModel; // 事件列表的表格模型
    private JScrollPane eventScrollPane; // 事件列表的滚动面板
    private JFileChooser fileChooser; // 文件选择器
    private JColorChooser colorChooser; // 颜色选择器
    private Color themeColor; // 主题颜色
    private Font font; // 字体
    
    public CalendarApp() {
        setTitle("CalendarApp");
        setSize(800, 600);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        // 初始化菜单
        initMenuBar();
        
        // 初始化主面板
        initTopPanel();
        initCalendarPanel();
        initEventPanel();
        JPanel mainPanel = new JPanel(new BorderLayout());
        mainPanel.add(topPanel, BorderLayout.NORTH);
        mainPanel.add(calendarPanel, BorderLayout.CENTER);
        mainPanel.add(eventPanel, BorderLayout.EAST);
        getContentPane().add(mainPanel);
        
        // 初始化文件选择器
        fileChooser = new JFileChooser();
        
        // 初始化颜色选择器
        colorChooser = new JColorChooser();
        themeColor = Color.BLUE;
        colorChooser.setColor(themeColor);
        
        // 初始化字体
        font = new Font("Arial", Font.PLAIN, 12);
        UIManager.put("Table.font", font);
        UIManager.put("TableHeader.font", font);
        
        // 显示窗口
        setVisible(true);
    }
    
    private void initMenuBar() {
        menuBar = new JMenuBar();
        setJMenuBar(menuBar);
        
        // 初始化文件菜单
        fileMenu = new JMenu("文件");
        menuBar.add(fileMenu);
        newItem = new JMenuItem("新建");
        newItem.addActionListener(this);
        fileMenu.add(newItem);
        openItem = new JMenuItem("打开");
        openItem.addActionListener(this);
        fileMenu.add(openItem);
        saveItem = new JMenuItem("保存");
        saveItem.addActionListener(this);
        fileMenu.add(saveItem);
        saveAsItem = new JMenuItem("另存为");
        saveAsItem.addActionListener(this);
        fileMenu.add(saveAsItem);
        fileMenu.addSeparator();
        exitItem = new JMenuItem("退出");
        exitItem.addActionListener(this);
        fileMenu.add(exitItem);
        
        // 初始化编辑菜单
        editMenu = new JMenu("编辑");
        menuBar.add(editMenu);
        undoItem = new JMenuItem("撤销");
        undoItem.addActionListener(this);
        editMenu.add(undoItem);
        redoItem = new JMenuItem("重做");
        redoItem.addActionListener(this);
        editMenu.add(redoItem);
        editMenu.addSeparator();
        cutItem = new JMenuItem("剪切");
        cutItem.addActionListener(this);
        editMenu.add(cutItem);
        copyItem = new JMenuItem("复制");
        copyItem.addActionListener(this);
        editMenu.add(copyItem);
        pasteItem = new JMenuItem("粘贴");
        pasteItem.addActionListener(this);
        editMenu.add(pasteItem);
        editMenu.addSeparator();
        selectAllItem = new JMenuItem("全选");
        selectAllItem.addActionListener(this);
        editMenu.add(selectAllItem);
        
        // 初始化查看菜单
        viewMenu = new JMenu("查看");
        menuBar.add(viewMenu);
        monthView = new JCheckBoxMenuItem("月视图");
        monthView.addActionListener(this);
        viewMenu.add(monthView);
        weekView = new JCheckBoxMenuItem("周视图");
        weekView.addActionListener(this);
        viewMenu.add(weekView);
        ButtonGroup viewGroup = new ButtonGroup();
        viewGroup.add(monthView);
        viewGroup.add(weekView);
        monthView.setSelected(true);
        
        // 初始化帮助菜单
        helpMenu = new JMenu("帮助");
        menuBar.add(helpMenu);
        aboutItem = new JMenuItem("关于");
        aboutItem.addActionListener(this);
        helpMenu.add(aboutItem);
    }
    
    private void initTopPanel() {
        topPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
        timeLabel = new JLabel();
        updateTimeLabel();
        topPanel.add(timeLabel);
        topPanel.add(new JSeparator(SwingConstants.VERTICAL));
        monthLabel = new JLabel();
        yearLabel = new JLabel();
        monthBox = new JComboBox<String>(new String[] {"1月", "2月", "3月", "4月", "5月", "6月", "7月", "8月", "9月", "10月", "11月", "12月"});
        monthBox.setSelectedIndex(Calendar.getInstance().get(Calendar.MONTH));
        monthBox.addItemListener(this);
        yearBox = new JComboBox<String>(new String[] {"2020", "2021", "2022", "2023", "2024", "2025", "2026", "2027", "2028", "2029", "2030"});
        yearBox.setSelectedItem(String.valueOf(Calendar.getInstance().get(Calendar.YEAR)));
        yearBox.addItemListener(this);
        prevMonthButton = new JButton("<");
        prevMonthButton.addActionListener(this);
        nextMonthButton = new JButton(">");
        nextMonthButton.addActionListener(this);
        topPanel.add(prevMonthButton);
        topPanel.add(monthLabel);
        topPanel.add(monthBox);
        topPanel.add(yearLabel);
        topPanel.add(yearBox);
        topPanel.add(nextMonthButton);
    }
    
    private void initCalendarPanel() {
        calendarPanel = new JPanel(new BorderLayout());
        calendarPanel.setBorder(new LineBorder(Color.GRAY));
        calendarPanel.add(getMonthView(), BorderLayout.CENTER);
    }
    
    private JPanel getMonthView() {
        JPanel monthPanel = new JPanel(new GridLayout(7, 7));
        monthPanel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
        String[] daysOfWeek = {"日", "一", "二", "三", "四", "五", "六"};
        for (int i = 0; i < daysOfWeek.length; i++) {
            JLabel label = new JLabel(daysOfWeek[i], JLabel.CENTER);
            label.setForeground(Color.RED);
            monthPanel.add(label);
        }
        Calendar cal = Calendar.getInstance();
        cal.set(Calendar.DAY_OF_MONTH, 1);
        int firstDayOfWeek = cal.get(Calendar.DAY_OF_WEEK);
        int maxDaysOfMonth = cal.getActualMaximum(Calendar.DAY_OF_MONTH);
        for (int i = 1; i < firstDayOfWeek; i++) {
            monthPanel.add(new JLabel(""));
        }
        for (int i = 1; i <= maxDaysOfMonth; i++) {
            JButton button = new JButton(String.valueOf(i));
            button.addActionListener(this);
            monthPanel.add(button);
        }
        int remainingCells = 42 - (maxDaysOfMonth + firstDayOfWeek - 1);
        for (int i = 0; i < remainingCells; i++) {
            monthPanel.add(new JLabel(""));
        }
        monthLabel.setText(new SimpleDateFormat("MMMM").format(cal.getTime()));
        yearLabel.setText(String.valueOf(cal.get(Calendar.YEAR)));
        return monthPanel;
    }
    
    private JPanel getWeekView() {
        JPanel weekPanel = new JPanel(new GridLayout(2, 1, 5, 5));
        weekPanel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
        JPanel dayPanel = new JPanel(new GridLayout(1, 7));
        dayPanel.setBorder(BorderFactory.createLineBorder(Color.GRAY));
        String[] daysOfWeek = {"日", "一", "二", "三", "四", "五", "六"};
        for (int i = 0; i < daysOfWeek.length; i++) {
            JLabel label = new JLabel(daysOfWeek[i], JLabel.CENTER);
            label.setForeground(Color.RED);
            dayPanel.add(label);
        }
        JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
        prevMonthButton = new JButton("<");
        prevMonthButton.addActionListener(this);
        nextMonthButton = new JButton(">");
        nextMonthButton.addActionListener(this);
        buttonPanel.add(prevMonthButton);
        buttonPanel.add(monthLabel);
        buttonPanel.add(monthBox);
        buttonPanel.add(yearLabel);
        buttonPanel.add(yearBox);
        buttonPanel.add(nextMonthButton);
        weekPanel.add(buttonPanel);
        weekPanel.add(dayPanel);
        return weekPanel;
    }
    
    private void initEventPanel() {
        eventPanel = new JPanel(new BorderLayout());
        eventPanel.setBorder(new TitledBorder("事件列表"));
        eventTableModel = new DefaultTableModel(new String[] {"名称", "日期时间"}, 0);
        eventTable = new JTable(eventTableModel);
        eventTable.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
        eventTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        eventScrollPane = new JScrollPane(eventTable);
        eventPanel.add(eventScrollPane, BorderLayout.CENTER);
        JPanel buttonPanel = new JPanel(new GridLayout(3, 1, 5, 5));
        addEventButton = new JButton("添加事件");
        addEventButton.addActionListener(this);
        editEventButton = new JButton("编辑事件");
        editEventButton.addActionListener(this);
        deleteEventButton = new JButton("删除事件");
        deleteEventButton.addActionListener(this);
        buttonPanel.add(addEventButton);
        buttonPanel.add(editEventButton);
        buttonPanel.add(deleteEventButton);
        eventPanel.add(buttonPanel, BorderLayout.SOUTH);
    }
    
    private void updateTimeLabel() {
        timeLabel.setText(new SimpleDateFormat("yyyy年MM月dd日 EEEE HH:mm:ss").format(Calendar.getInstance().getTime()));
    }
    
    private void updateEventTable() {
        eventTableModel.setRowCount(0);
        // TODO: 从数据库或文件中读取事件数据，添加到表格中
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        Object source = e.getSource();
        if (source == newItem) {
            // TODO: 新建文件
        } else if (source == openItem) {
            // TODO: 打开文件
        } else if (source == saveItem) {
            // TODO: 保存文件
        } else if (source == saveAsItem) {
            // TODO: 另存