(完整版)JAVA记事本源代码毕业设计论文

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 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, 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 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, fontButton, 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 UndoManager 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); 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.println(Text.getDragEnabled()); 支持自动拖放

JScrollPane scroll = new JScrollPane(Text);

scroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALW AYS);