完整版JAVA记事本源代码毕业设计论文.docx

1、完整版JAVA记事本源代码毕业设计论文优秀论文 审核通过未经允许 切勿外传JAVA记事本源代码import java.awt.*;import java.awt.event.*;import java.text.*;import java.util.*;import java.io.*;import javax.swing.undo.*;import javax.swing.*;import javax.swing.event.*;import java.awt.datatransfer.*;import java.util.List;public class Notepad4 extends

2、 JFrame implements ActionListener, DocumentListener JMenu mFile, mEdit, mMode, mView, mHelp; -文件菜单JMenuItem mFile_New, mFile_Open, mFile_Save, mFile_ASave, mFile_Print, mFile_Exit; -编辑菜单JMenuItem mEdit_Undo, mEdit_Cut, mEdit_Copy, mEdit_Paste, mEdit_Del, mEdit_Search, mEdit_SearchNext, mEdit_Replace

3、, mEdit_Turnto, mEdit_SelectAll, mEdit_TimeDate; -格式菜单JCheckBoxMenuItem formatMenu_LineWrap;JMenu formatMenu_Color;JMenuItem formatMenu_Font, formatMenu_Color_FgColor, formatMenu_Color_BgColor; -查看菜单JCheckBoxMenuItem viewMenu_Status; -帮助菜单JMenuItem mHelp_HelpTopics, mHelp_About; -弹出菜单级菜单项JPopupMenu

4、popupMenu;JMenuItem popupMenu_Undo, popupMenu_Cut, popupMenu_Copy, popupMenu_Paste, popupMenu_Delete, popupMenu_SelectAll; -工具栏按钮JButton newButton, openButton, saveButton, saveAsButton, printButton, undoButton, redoButton, cutButton, copyButton, pasteButton, deleteButton, searchButton, timeButton, f

5、ontButton, boldButton,italicButton, fgcolorButton, bgcolorButton, ; 文本编辑区域static JTextArea Text; 状态栏标签JLabel statusLabel1, statusLabel2, statusLabel3;JToolBar statusBar; -系统剪贴板Toolkit toolKit = Toolkit.getDefaultToolkit();Clipboard clipBoard = toolKit.getSystemClipboard(); -创建撤消操作管理器protected UndoMa

6、nager undo = new UndoManager();protected UndoableEditListener undoHandler = new UndoHandler(); -其它变量boolean isNewFile = true; 是否新文件(未保存过的)File currentFile; 当前文件名String oldValue; 存放编辑区原来的内容，用于比较文本是否有改动JButton fontOkButton; 字体设置里的确定按钮 -设置编辑区默认字体protected Font defaultFont = new Font(宋体, Font.PLAIN, 12)

7、;GregorianCalendar time = new GregorianCalendar();int = time.get(Calendar.MINUTE);int second = time.get(Calendar.SECOND);File saveFileName = null, fileName = null;public Notepad4() super(VXBB的记事本);setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);Container container = getContentPane(); System.out.printl

8、n(Text.getDragEnabled(); 支持自动拖放JScrollPane scroll = new JScrollPane(Text);scroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);scroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);Text.setWrapStyleWord(true); 设置单词在一行不足容纳时换行Text.setLineWrap(true);Text.setFo

9、nt(defaultFont); 设置编辑区默认字体Text.setBackground(Color.white); 设置编辑区默认背景色Text.setForeground(Color.black); 设置编辑区默认前景色oldValue = Text.getText(); 获取原文本编辑区的内容 -编辑区注册事件监听Text.getDocument().addUndoableEditListener(undoHandler); 添加负责通知任何更改的撤消侦听器Text.getDocument().addDocumentListener(this); 添加负责通知任何更改的文档侦听器JMen

10、uBar MenuBar = new JMenuBar();mFile = new JMenu(文件(F), true); 创建菜单mEdit = new JMenu(编辑(E), true);mMode = new JMenu(格式(O), true);mView = new JMenu(查看(V), true);mHelp = new JMenu(帮助(H), true);mEdit.addActionListener(new ActionListener() 注册事件监听public void actionPerformed(ActionEvent e) checkMenuItemEna

11、bled(); 设置剪切、复制、粘贴、删除等功能的可用性);mFile.setMnemonic(F);mEdit.setMnemonic(E);mMode.setMnemonic(O);mView.setMnemonic(V);mHelp.setMnemonic(H);MenuBar.add(mFile);MenuBar.add(mEdit);MenuBar.add(mMode);MenuBar.add(mView);MenuBar.add(mHelp); -文件菜单mFile_New = new JMenuItem(新建(N), N);mFile_Open = new JMenuItem(打

12、开(O), O);mFile_Save = new JMenuItem(保存(S), S);mFile_ASave = new JMenuItem(另存为(A), A);mFile_Print = new JMenuItem(打印(P), P);mFile_Exit = new JMenuItem(退出(X), X);mFile_New.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N, InputEvent.CTRL_MASK);mFile_Open.setAccelerator(KeyStroke.getKeyStroke(KeyEve

13、nt.VK_O, InputEvent.CTRL_MASK);mFile_Save.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, InputEvent.CTRL_MASK);mFile_Print.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_P, InputEvent.CTRL_MASK);mFile_New.addActionListener(this); 注册事件监听mFile_Open.addActionListener(this);mFile_Save.addAction

14、Listener(this);mFile_ASave.addActionListener(this);mFile_Print.addActionListener(this);mFile_Exit.addActionListener(this);mFile.add(mFile_New); 添加菜单项mFile.add(mFile_Open);mFile.add(mFile_Save);mFile.add(mFile_ASave);mFile.addSeparator(); 添加分割线mFile.add(mFile_Print);mFile.addSeparator(); 添加分割线mFile.a

15、dd(mFile_Exit); -编辑菜单mEdit_Undo = new JMenuItem(撤消(U), U);mEdit_Cut = new JMenuItem(剪切(T), T);mEdit_Copy = new JMenuItem(复制(C), C);mEdit_Paste = new JMenuItem(粘贴(P), P);mEdit_Del = new JMenuItem(删除(L), L);mEdit_Search = new JMenuItem(查找(F), F);mEdit_SearchNext = new JMenuItem(查找下一个(N), N);mEdit_Repl

16、ace = new JMenuItem(替换(R), R);mEdit_Turnto = new JMenuItem(转到(G), G);mEdit_SelectAll = new JMenuItem(全选(A), A);mEdit_TimeDate = new JMenuItem(时间日期(D), D);mEdit_Cut.setEnabled(false);mEdit_Undo.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Z, InputEvent.CTRL_MASK);mEdit_Cut.setAccelerator(KeyStro

17、ke.getKeyStroke(KeyEvent.VK_X, InputEvent.CTRL_MASK);mEdit_Copy.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C, InputEvent.CTRL_MASK);mEdit_Paste.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V, InputEvent.CTRL_MASK);mEdit_Del.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_DELETE, 0);mEd

18、it_Search.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F, InputEvent.CTRL_MASK);mEdit_SearchNext.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F3, 0);mEdit_Replace.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_H, InputEvent.CTRL_MASK);mEdit_Turnto.setAccelerator(KeyStroke.getKeyStroke(K

19、eyEvent.VK_G, InputEvent.CTRL_MASK);mEdit_SelectAll.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A, InputEvent.CTRL_MASK);mEdit_TimeDate.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F5, 0);mEdit_Undo.addActionListener(this); 注册事件监听mEdit_Cut.addActionListener(this);mEdit_Copy.addActionListe

20、ner(this);mEdit_Paste.addActionListener(this);mEdit_Del.addActionListener(this);mEdit_Search.addActionListener(this);mEdit_SearchNext.addActionListener(this);mEdit_Replace.addActionListener(this);mEdit_Turnto.addActionListener(this);mEdit_SelectAll.addActionListener(this);mEdit_TimeDate.addActionLis

21、tener(this);mEdit.add(mEdit_Undo); 添加菜单项mEdit.addSeparator(); 添加分割线mEdit.add(mEdit_Cut);mEdit.add(mEdit_Copy);mEdit.add(mEdit_Paste);mEdit.add(mEdit_Del);mEdit.addSeparator();mEdit.add(mEdit_Search);mEdit.add(mEdit_SearchNext);mEdit.add(mEdit_Replace);mEdit.add(mEdit_Turnto);mEdit.addSeparator();mEd

22、it.add(mEdit_SelectAll);mEdit.add(mEdit_TimeDate); -格式菜单formatMenu_LineWrap = new JCheckBoxMenuItem(自动换行(W);formatMenu_LineWrap.setMnemonic(W);formatMenu_LineWrap.setState(true);formatMenu_Font = new JMenuItem(字体(F), F);formatMenu_Color = new JMenu(颜色);formatMenu_Color_FgColor = new JMenuItem(字体颜色);

23、formatMenu_Color_BgColor = new JMenuItem(背景颜色);formatMenu_LineWrap.addActionListener(this); 注册事件监听formatMenu_Font.addActionListener(this);formatMenu_Color_FgColor.addActionListener(this);formatMenu_Color_BgColor.addActionListener(this);mMode.add(formatMenu_LineWrap); 添加菜单项mMode.addSeparator();mMode.

24、add(formatMenu_Font);mMode.add(formatMenu_Color);formatMenu_Color.add(formatMenu_Color_FgColor);formatMenu_Color.add(formatMenu_Color_BgColor); -查看菜单viewMenu_Status = new JCheckBoxMenuItem(状态栏(S);viewMenu_Status.setMnemonic(S);viewMenu_Status.setState(true);viewMenu_Status.addActionListener(this);mV

25、iew.add(viewMenu_Status); -帮助菜单mHelp_HelpTopics = new JMenuItem(帮助(H), H);mHelp_About = new JMenuItem(关于(A), A);mHelp_HelpTopics.addActionListener(this);mHelp_About.addActionListener(this);mHelp.add(mHelp_HelpTopics);mHelp.addSeparator(); 添加分割线mHelp.add(mHelp_About);创建右键弹出菜单popupMenu = new JPopupMen

26、u();popupMenu_Undo = new JMenuItem(撤消(U), U);popupMenu_Cut = new JMenuItem(剪切(T), T);popupMenu_Copy = new JMenuItem(复制(C), C);popupMenu_Paste = new JMenuItem(粘贴(P), P);popupMenu_Delete = new JMenuItem(删除(D), D);popupMenu_SelectAll = new JMenuItem(全选(A), A);popupMenu_Undo.setEnabled(false); 撤消选项初始设为不

27、可用 -向右键菜单添加菜单项和分隔符popupMenu.add(popupMenu_Undo);popupMenu.addSeparator();popupMenu.add(popupMenu_Cut);popupMenu.add(popupMenu_Copy);popupMenu.add(popupMenu_Paste);popupMenu.add(popupMenu_Delete);popupMenu.addSeparator();popupMenu.add(popupMenu_SelectAll);右键菜单注册事件popupMenu_Undo.addActionListener(this

28、);popupMenu_Cut.addActionListener(this);popupMenu_Copy.addActionListener(this);popupMenu_Paste.addActionListener(this);popupMenu_Delete.addActionListener(this);popupMenu_SelectAll.addActionListener(this);文本编辑区注册右键菜单事件Text.addMouseListener(new MouseAdapter() public void mousePressed(MouseEvent e) che

29、ckForTriggerEvent(e);public void mouseReleased(MouseEvent e) checkForTriggerEvent(e);private void checkForTriggerEvent(MouseEvent e) if (e.isPopupTrigger()popupMenu.show(e.getComponent(), e.getX(), e.getY(); 在组件调用者的坐标空间中的位置 X、Y 显示弹出菜单。else statusLabel3.setText(当前光标所在行数: + getlineNumber();checkMenuIt

30、emEnabled(); 设置剪切、复制、粘贴、删除等功能的可用性Text.requestFocus(); 编辑区获取焦点); -创建工具栏JPanel toolBar = new JPanel();toolBar.setLayout(new FlowLayout(FlowLayout.LEFT);Icon newIcon = new ImageIcon(Iconsnew.gif);Icon openIcon = new ImageIcon(Iconsopen.gif);Icon saveIcon = new ImageIcon(Iconssave.gif);Icon saveAsIcon = new ImageIcon(Iconssaveas.gif);Icon printIcon = new ImageIcon(Iconsprint.gif);Icon undoIcon = new ImageIcon(Iconsundo.gif);Icon cutIcon = new ImageIcon(Iconscut.gif);Icon copyIcon = new ImageIcon(Iconscopy.gif);Icon pasteIcon = new ImageIcon(Icon