java记事本

一时失言乱红尘 2022-05-29 10:50 185阅读 0赞

package com.scan;

import javax.swing.\*;  
import java.awt.event.\*;  
import java.awt.\*;  
import java.io.\*;

public class Window extends JFrame implements ActionListener \{  
 /\*\*  
  \*  
  \*/  
 public static void main(String\[\] args) \{  
    
    
  Window w=new Window("test");

private static final long serialVersionUID = -2739406712124680419L;  
 JMenuBar menubar;  
 JPopupMenu menu;// 创建弹出式菜单对象  
 JMenu menu1, menu2, menu3, menu4, menu5, menu6;  
 JToolBar toolbar1, toolbar2;  
 JButton button1, button2, button3, button4, button5, button6;  
 JMenuItem item1, item2, item3, item4, item5, item6, item7, item8, item9, item11, item12, item13, item14, item15,  
   item16, item17, item18, item19;  
 JTextArea text;  
 JFileChooser fileChooser;  
 JTextField text1, text2, text3, text4;  
 JComboBox listFont, listSize;  
 JLabel label, label1;  
 JCheckBox box;

Window(String s) \{  
  setTitle(s);  
  // 实例化复选框  
  box = new JCheckBox("自动换行");  
  // 实例化文件对话框  
  fileChooser = new JFileChooser();  
  // 实例化菜单栏  
  menubar = new JMenuBar();  
  // 实例化工具栏  
  toolbar1 = new JToolBar();  
  // 实例化状态栏  
  toolbar2 = new JToolBar();  
  // 加载工具栏  
  add(toolbar1, BorderLayout.NORTH);  
  // 加载状态栏  
  add(toolbar2, BorderLayout.SOUTH);  
  // 实例化标签  
  label = new JLabel("字体设置");  
  label1 = new JLabel("字号");  
  // 实例化工具栏按钮  
  button1 = new JButton(new ImageIcon("ico\\\\new.gif"));  
  button2 = new JButton(new ImageIcon("ico\\\\open.gif"));  
  button3 = new JButton(new ImageIcon("ico\\\\save.gif"));  
  button4 = new JButton(new ImageIcon("ico\\\\copy.gif"));  
  button5 = new JButton(new ImageIcon("ico\\\\paste.gif"));  
  button6 = new JButton(new ImageIcon("ico\\\\cut.gif"));  
  // 设置工具栏大小  
  toolbar1.setPreferredSize(new Dimension(800, 30));  
  toolbar2.setPreferredSize(new Dimension(800, 25));  
  // 设置按钮大小  
  button1.setMaximumSize(new Dimension(40, 30));  
  button2.setMaximumSize(new Dimension(40, 30));  
  button3.setMaximumSize(new Dimension(40, 30));  
  button4.setMaximumSize(new Dimension(40, 30));  
  button5.setMaximumSize(new Dimension(40, 30));  
  button6.setMaximumSize(new Dimension(40, 30));  
  // 添加按钮  
  toolbar1.add(button1);  
  toolbar1.add(button2);  
  toolbar1.add(button3);  
  toolbar1.addSeparator();  
  toolbar1.add(button4);  
  toolbar1.add(button5);  
  toolbar1.add(button6);  
  toolbar1.addSeparator();  
  // 添加标签  
  toolbar1.add(label);  
  // 字体设置下拉列表  
  GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();  
  String fontName\[\] = ge.getAvailableFontFamilyNames();  
  // 添加字体下拉列表  
  listFont = new JComboBox(fontName);  
  toolbar1.add(listFont);  
  // 添加标签  
  toolbar1.addSeparator();  
  toolbar1.add(label1);  
  // 添加字号下拉类表  
  String\[\] size = \{ "8", "9", "10", "12", "14", "15", "16", "18", "20", "21", "22", "24", "26", "28", "30", "36",  
    "48", "54", "72", "89" \};  
  listSize = new JComboBox(size);  
  toolbar1.add(listSize);  
  // 加载复选框  
  toolbar1.addSeparator();  
  toolbar1.add(box);  
  // 实例化菜单  
  menu1 = new JMenu("文件");  
  menu2 = new JMenu("编辑");  
  menu3 = new JMenu("页面设置");  
  menu4 = new JMenu("颜色设置");  
  menu5 = new JMenu("字体设置");  
  menu6 = new JMenu("关于");  
  // 实例化菜单选项  
  item1 = new JMenuItem("新建");  
  item2 = new JMenuItem("打开");  
  item3 = new JMenuItem("保存");  
  item4 = new JMenuItem("退出");  
  item5 = new JMenuItem("复制");  
  item6 = new JMenuItem("粘贴");  
  item7 = new JMenuItem("剪切");  
  item9 = new JMenuItem("关于记事本");  
  // 实例化子菜单  
  item8 = new JMenuItem("宋体");  
  item17 = new JMenuItem("黑体");  
  item18 = new JMenuItem("楷体");  
  item19 = new JMenuItem("隶书");  
  item15 = new JMenuItem("背景颜色设置");  
  item16 = new JMenuItem("字体颜色设置");  
  // 实例化弹出式菜单选项  
  item11 = new JMenuItem("复制");  
  item12 = new JMenuItem("粘贴");  
  item13 = new JMenuItem("剪切");  
  item14 = new JMenuItem("全选");  
  // 加载菜单栏  
  setJMenuBar(menubar);  
  // 菜单选项及快捷键  
  menu1.add(item1);  
  item1.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK\_N, InputEvent.CTRL\_MASK));  
  menu1.add(item2);  
  item2.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK\_O, InputEvent.CTRL\_MASK));  
  menu1.addSeparator();// 添加分割线  
  menu1.add(item3);  
  item3.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK\_S, InputEvent.CTRL\_MASK));  
  menu1.add(item4);  
  item4.setAccelerator(KeyStroke.getKeyStroke("X"));  
  menu2.addSeparator(); // 添加分割线  
  menu2.add(item5);  
  item5.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK\_C, InputEvent.CTRL\_MASK));  
  menu2.add(item6);  
  item6.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK\_V, InputEvent.CTRL\_MASK));  
  menu2.addSeparator(); // 添加分割线  
  menu2.add(item7);  
  item7.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK\_T, InputEvent.CTRL\_MASK));  
  // 页面设置菜单及子菜单  
  menu3.add(menu4);  
  menu3.add(menu5);  
  menu4.add(item15);  
  menu4.add(item16);  
  menu5.add(item8);  
  menu5.add(item17);  
  menu5.add(item18);  
  menu5.add(item19);  
  menu6.add(item9);  
  // 添加菜单  
  menubar.add(menu1);  
  menubar.add(menu2);  
  menubar.add(menu3);  
  menubar.add(menu6);  
  // 建立文本区域  
  text = new JTextArea();  
  add(text);  
  text.setText("");  
  // 加入滚动条  
  add(new JScrollPane(text));  
  // 实例化文本框  
  text1 = new JTextField("就绪");  
  text2 = new JTextField("欢迎使用该记事本！！");  
  text3 = new JTextField();  
  text4 = new JTextField();  
  // 状态栏中加载文本框  
  toolbar2.add(text1);  
  toolbar2.add(text2);  
  toolbar2.add(text3);  
  toolbar2.add(text4);  
  // 文本框为不可编辑状态  
  text1.setEditable(false);  
  text2.setEditable(false);  
  text3.setEditable(false);  
  text4.setEditable(false);  
  // 弹出式菜单及快捷键  
  menu = new JPopupMenu();  
  menu.add(item11);  
  item11.setAccelerator(KeyStroke.getKeyStroke("C"));  
  menu.add(item12);  
  item12.setAccelerator(KeyStroke.getKeyStroke("V"));  
  menu.add(item13);  
  item13.setAccelerator(KeyStroke.getKeyStroke("T"));  
  menu.addSeparator(); // 添加分割线  
  menu.add(item14);  
  item14.setAccelerator(KeyStroke.getKeyStroke("A"));  
  // 鼠标右键时间(弹出菜单)  
  text.addMouseListener(new MouseAdapter() \{  
   public void mousePressed(MouseEvent e) \{  
    if (e.getModifiers() == InputEvent.BUTTON3\_MASK)  
     menu.show(text, e.getX(), e.getY());  
   \}  
  \});  
  // 菜单注册监听器  
  item1.addActionListener(this);  
  item2.addActionListener(this);  
  item3.addActionListener(this);  
  item4.addActionListener(this);  
  item5.addActionListener(this);  
  item6.addActionListener(this);  
  item7.addActionListener(this);  
  item8.addActionListener(this);  
  item9.addActionListener(this);  
  item17.addActionListener(this);  
  item18.addActionListener(this);  
  item19.addActionListener(this);  
  item15.addActionListener(this);  
  item16.addActionListener(this);  
  item11.addActionListener(this);  
  item12.addActionListener(this);  
  item13.addActionListener(this);  
  item14.addActionListener(this);  
  // 按钮注册监听器  
  button1.addActionListener(this);  
  button2.addActionListener(this);  
  button3.addActionListener(this);  
  button4.addActionListener(this);  
  button5.addActionListener(this);  
  button6.addActionListener(this);  
  // 字体和字号下拉列表事件响应  
  listFont.addItemListener(new ItemListener() \{  
   public void itemStateChanged(ItemEvent e) \{  
    String name = (String) listFont.getSelectedItem();  
    Font f = new Font(name, Font.BOLD, text.getFont().getSize());  
    text.setFont(f);  
   \}  
  \});  
  listSize.addItemListener(new ItemListener() \{  
   public void itemStateChanged(ItemEvent e) \{  
    int fontsize = (new Integer((String) e.getItem()).intValue());  
    Font f = new Font(text.getFont().getName(), text.getFont().getStyle(), fontsize);  
    text.setFont(f);  
   \}  
  \});  
  // 自动换行事件响应  
  box.addItemListener(new ItemListener() \{  
   public void itemStateChanged(ItemEvent e) \{  
    if (box.isSelected())  
     text.setLineWrap(true);  
    else  
     text.setLineWrap(false);  
   \}  
  \});  
  // 窗体设置  
  setSize(800, 550);  
  setLocation(120, 120);  
  setVisible(true);  
  validate();  
  setDefaultCloseOperation(JFrame.DISPOSE\_ON\_CLOSE);  
  // 窗体事件响应  
  addWindowListener(new WindowAdapter() \{  
   public void windowClosing(WindowEvent e) \{  
    closefile();  
   \}  
  \});  
 \}

// 事件响应  
 public void actionPerformed(ActionEvent e) \{  
  // 复制  
  if (e.getSource() == item11 || e.getSource() == item5 || e.getSource() == button4)  
   text.copy();  
  // 粘贴  
  else if (e.getSource() == item12 || e.getSource() == item6 || e.getSource() == button5)  
   text.paste();  
  // 剪切  
  else if (e.getSource() == item13 || e.getSource() == item7 || e.getSource() == button6)  
   text.cut();  
  // 退出  
  else if (e.getSource() == item4) \{  
   if (text.getText().equals("")) \{  
    System.exit(0);  
   \} else \{  
    int n = JOptionPane.showConfirmDialog(this, "无标题记事本已改变。\\n想要保存吗？", "记事本",  
      JOptionPane.YES\_NO\_CANCEL\_OPTION);  
    if (n == JOptionPane.NO\_OPTION)  
     System.exit(0);  
    else if (n == JOptionPane.YES\_OPTION) \{  
     int m = fileChooser.showSaveDialog(null);  
     if (m == JFileChooser.APPROVE\_OPTION) \{  
      File file = fileChooser.getSelectedFile();  
      // 获取文件名  
      fileChooser.getName(file);  
      try \{  
       FileWriter out = new FileWriter(file);  
       out.write(text.getText());  
       out.close();  
      \} catch (IOException ee) \{  
      \}  
     \}  
     System.exit(0);  
    \}  
   \}  
  \}  
  // 新建  
  else if (e.getSource() == item1) \{  
   if (text.getText().equals("")) \{  
    text.setText("");  
   \} else \{  
    int n = JOptionPane.showConfirmDialog(this, "无标题记事本已改变。\\n想要保存吗？", "记事本",  
      JOptionPane.YES\_NO\_CANCEL\_OPTION);  
    if (n == JOptionPane.NO\_OPTION) \{  
     text.setText("");  
     setTitle("无标题" + "——" + "记事本");  
    \} else if (n == JOptionPane.YES\_OPTION) \{  
     fileChooser.showSaveDialog(null);  
     if (n == JFileChooser.APPROVE\_OPTION) \{  
      File file = fileChooser.getSelectedFile();  
      fileChooser.getName(file);  
      try \{  
       FileWriter out = new FileWriter(file);  
       out.write(text.getText());  
       out.close();  
      \} catch (IOException ee) \{  
      \}  
      text.setText("");  
     \}  
    \}  
   \}  
  \}  
  // 打开  
  else if (e.getSource() == item2) \{  
   int n = fileChooser.showOpenDialog(null);  
   if (n == JFileChooser.APPROVE\_OPTION) \{  
    File file = fileChooser.getSelectedFile();  
    try \{  
     setTitle(fileChooser.getName(file) + "——" + "记事本");  
     FileReader readfile = new FileReader(file);  
     BufferedReader in = new BufferedReader(readfile);  
     String s = null;  
     while ((s = in.readLine()) != null)  
      text.append(s + "\\n");  
     readfile.close();  
    \} catch (IOException ee) \{  
    \}  
   \}  
  \}  
  // 保存  
  else if (e.getSource() == item3) \{  
   if (text.getText().equals("")) \{  
    text.setText("");  
   \} else \{  
    int n = fileChooser.showSaveDialog(null);  
    if (n == JFileChooser.APPROVE\_OPTION) \{  
     File file = fileChooser.getSelectedFile();  
     // 获取文件名  
     fileChooser.getName(file);  
     try \{  
      setTitle(fileChooser.getName(file) + "——" + "记事本");  
      FileWriter out = new FileWriter(file);  
      out.write(text.getText());  
      out.close();  
     \} catch (IOException ee) \{  
     \}  
    \}  
   \}  
  \}  
  // 字体设置  
  else if (e.getSource() == item8) \{  
   Font font = new Font("宋体", Font.BOLD, getFont().getSize());  
   text.setFont(font);  
  \} else if (e.getSource() == item17) \{  
   Font font = new Font("黑体", Font.ITALIC, getFont().getSize());  
   text.setFont(font);  
  \} else if (e.getSource() == item18) \{  
   Font font = new Font("楷体", Font.PLAIN, getFont().getSize());  
   text.setFont(font);  
  \} else if (e.getSource() == item19) \{  
   Font font = new Font("隶书", Font.TYPE1\_FONT, getFont().getSize());  
   text.setFont(font);  
  \}  
  // 背景颜色设置  
  else if (e.getSource() == item15) \{  
   Color color = JColorChooser.showDialog(this, "调色板", text.getBackground());  
   if (color != null)  
    text.setBackground(color);  
  \}  
  // 字体颜色设置  
  else if (e.getSource() == item16) \{  
   Color color = JColorChooser.showDialog(this, "调色板", text.getForeground());  
   if (color != null) \{  
    text.setForeground(color);  
   \}  
  \}  
  // 全选  
  else if (e.getSource() == item14) \{  
   text.selectAll();  
  \}  
  // 新建按钮  
  else if (e.getSource() == button1) \{  
   if (text.getText().equals("")) \{  
    text.setText("");  
   \} else \{  
    int n = JOptionPane.showConfirmDialog(this, "无标题记事本已改变。\\n想要保存吗？", "记事本",  
      JOptionPane.YES\_NO\_CANCEL\_OPTION);  
    if (n == JOptionPane.NO\_OPTION) \{  
     setTitle("无标题" + "——" + "记事本");  
     text.setText("");  
    \} else if (n == JOptionPane.YES\_OPTION) \{  
     fileChooser.showSaveDialog(null);  
     if (n == JFileChooser.APPROVE\_OPTION) \{  
      File file = fileChooser.getSelectedFile();  
      fileChooser.getName(file);  
      try \{  
       FileWriter out = new FileWriter(file);  
       out.write(text.getText());  
       out.close();  
      \} catch (IOException ee) \{  
      \}  
      text.setText("");  
     \}  
    \}  
   \}  
  \}  
  // 打开按钮  
  else if (e.getSource() == button2) \{  
   int n = fileChooser.showOpenDialog(null);  
   if (n == JFileChooser.APPROVE\_OPTION) \{  
    File file = fileChooser.getSelectedFile();  
    try \{  
     setTitle(fileChooser.getName(file) + "——" + "记事本");  
     FileReader readfile = new FileReader(file);  
     BufferedReader in = new BufferedReader(readfile);  
     String s = null;  
     while ((s = in.readLine()) != null)  
      text.append(s + "\\n");  
     readfile.close();  
    \} catch (IOException ee) \{  
    \}  
   \}

\}  
  // 保存按钮  
  else if (e.getSource() == button3) \{  
   if (text.getText().equals("")) \{  
    text.setText("");  
   \} else \{  
    int n = fileChooser.showSaveDialog(null);  
    if (n == JFileChooser.APPROVE\_OPTION) \{  
     File file = fileChooser.getSelectedFile();  
     // 获取文件名  
     fileChooser.getName(file);  
     try \{  
      setTitle(fileChooser.getName(file) + "——" + "记事本");  
      FileWriter out = new FileWriter(file);  
      out.write(text.getText());  
      out.close();  
     \} catch (IOException ee) \{  
     \}  
    \}  
   \}  
  \} else if (e.getSource() == item9) \{  
   JOptionPane.showMessageDialog(this,  
     "这个是简单的记事本，但又不同于系统自带的记事本。\\n" + "完全是自己写的，因为是初习者，没有用太多的方法。\\n但是我相信这是很多初学者的实用的，简单易懂。\\n"  
       + "所有版权归程世强所有，最终解释武汉科技学院。\\n联系方式：QQ：61289581  420721597\\n" + "电话：15927162152 ",  
     "关于记事本", JOptionPane.INFORMATION\_MESSAGE);  
  \}  
 \}

// 关闭窗体是调用的方法  
 public void closefile() \{  
  if (text.getText().equals("")) \{  
   System.exit(0);  
  \} else \{  
   int n = JOptionPane.showConfirmDialog(this, "无标题记事本已改变。\\n想要保存吗？", "记事本", JOptionPane.YES\_NO\_CANCEL\_OPTION);  
   if (n == JOptionPane.NO\_OPTION)  
    System.exit(0);  
   else if (n == JOptionPane.YES\_OPTION) \{  
    fileChooser.showSaveDialog(null);  
    if (n == JFileChooser.APPROVE\_OPTION) \{  
     File file = fileChooser.getSelectedFile();  
     fileChooser.getName(file);  
     try \{  
      FileWriter out = new FileWriter(file);  
      out.write(text.getText());  
      out.close();  
     \} catch (IOException ee) \{  
     \}  
     System.exit(0);  
    \}  
   \} else if (n == JOptionPane.CANCEL\_OPTION)  
    setDefaultCloseOperation(JFrame.DO\_NOTHING\_ON\_CLOSE);  
  \}

\}  
\}