Java Swing 初学练习----记事本功能的实现

学Java大概也有那么一段时间了，写了些小项目来练手

也算是对之前学的Java基本操作的巩固

照着Windows的记事本用Java Swing实现了一下

欢迎各位大佬批评指正不足之处

 

首先是主窗口程序：

package com.app.notepadplus;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

import javax.swing.ImageIcon;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JDialog;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.KeyStroke;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.LineBorder;
import javax.swing.event.CaretEvent;
import javax.swing.event.CaretListener;
import javax.swing.event.UndoableEditEvent;
import javax.swing.event.UndoableEditListener;
import javax.swing.undo.UndoManager;

public class Notepad extends JFrame {
	/**
	 * 初始化方法
	 */
	private static final long serialVersionUID = 1L;
	private static JPopupMenu menu;
	private String fileName = "无标题";
	private String title = " - 记事本";
	private JTextArea area;
	private JLabel lblStatus;
	private ArrayList mainMenuList;
	private Map sonMenuMap;
	private Map rightMenuMap;
	private JPanel panBottom;
	private boolean isOpenFile = false;
	private boolean isSaved = true;
	private boolean isLineWrap = true;
	private File fileOpen;
	private JFileChooser jfc;
	private Font fontEnd;
	private UndoManager um;
	private JCheckBoxMenuItem jcb;
	private JCheckBoxMenuItem jcbLine;
	protected FoundDialog foundDialog;

	public Notepad() {
		int fWidth = 800;
		int fHeight = 600;
		this.setSize(fWidth, fHeight);
		this.centerWindow();

		// 设置UI随系统
		try {
			UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
		} catch (ClassNotFoundException | InstantiationException | IllegalAccessException
				| UnsupportedLookAndFeelException e) {
			e.printStackTrace();
		}

		// 读取序列化的字体格式
		if (new File("setting/fontEnd.ser").exists()) {
			try {
				FileInputStream fileIn = new FileInputStream("setting/fontEnd.ser");
				ObjectInputStream in = new ObjectInputStream(fileIn);
				fontEnd = (Font) in.readObject();
				in.close();
				fileIn.close();
			} catch (IOException i) {
				i.printStackTrace();
				return;
			} catch (ClassNotFoundException c) {
				System.out.println("fontEnd.ser not found");
				c.printStackTrace();
				return;
			}
		} else {
			fontEnd = new Font("微软雅黑", Font.PLAIN, 12);
		}

		lblStatus = new JLabel("第 1 行, 第 1 列");
		lblStatus.setFont(new Font("微软雅黑", Font.PLAIN, 12));

		setBottom();

		this.setIconImage(new ImageIcon("images/jiShiBen.png").getImage());
		this.setMenu();
		this.setText(this);

		this.addListener(this);
		this.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
		this.setTitle(fileName);

	}

	public void setBottom() {
		panBottom = new JPanel();
		panBottom.setLayout(new GridLayout(1, 4));
		panBottom.add(new JLabel());
		panBottom.add(new JLabel());
		panBottom.add(new JLabel());
		panBottom.add(new JLabel());
		panBottom.add(new JLabel());
		panBottom.add(lblStatus);

		JLabel timeLabel = new JLabel();
		panBottom.add(timeLabel);
		SimpleDateFormat dfLabel = new SimpleDateFormat("HH:mm:ss");// 设置日期格式
		// 新建线程实现 右下角时间的显示
		new Thread(new Runnable() {
			@Override
			public void run() {
				while (true) {
					timeLabel.setText(dfLabel.format(new Date()));
					try {
						Thread.sleep(1000);// 每秒刷新一次
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
				}
			}
		}).start();

		panBottom.setBorder(new LineBorder(Color.GRAY));

		this.add(panBottom, BorderLayout.SOUTH);
	}

	@Override
	public void setTitle(String fileName) {
		super.setTitle(fileName + this.title + "                ");
	}

	public void setTitleSuper(String fileName) {
		super.setTitle(fileName);
	}

	private void setMenu() {
		// 二维数组保存菜单列表
		String[] mainMenu = { "文件(F)", "编辑(E)", "格式(O)", "查看(V)", "帮助(H)" };

		String sonMenu[][] = { { "新建(N)", "打开(O)...", "保存(S)", "另存为(A)...", "页面设置(U)...", "打印(P)...", "退出(X)" },
				{ "撤销(U)", "剪切(T)", "复制(C)", "粘贴(P)", "删除(L)", "查找(F)...", "查找下一个(N)", "替换(R)...", "转到(G)...", "全选(A)",
						"时间/日期(D)" },
				{ "  字体(F)..." }, {}, { "查看帮助(H)", "关于记事本(A)", "计算器(C) ", "日历(D)" } };

		int kjj1[] = { KeyEvent.VK_F, KeyEvent.VK_E, KeyEvent.VK_O, KeyEvent.VK_V, KeyEvent.VK_H };

		int kjj2[][] = {
				{ KeyEvent.VK_N, KeyEvent.VK_O, KeyEvent.VK_S, KeyEvent.VK_A, KeyEvent.VK_U, KeyEvent.VK_P,
						KeyEvent.VK_X },
				{ KeyEvent.VK_Z, KeyEvent.VK_X, KeyEvent.VK_C, KeyEvent.VK_V, KeyEvent.VK_L, KeyEvent.VK_F,
						KeyEvent.VK_N, KeyEvent.VK_R, KeyEvent.VK_G, KeyEvent.VK_A, KeyEvent.VK_D },
				{ KeyEvent.VK_F }, {}, { KeyEvent.VK_H, KeyEvent.VK_A, KeyEvent.VK_C, KeyEvent.VK_D } };

		String kjj3[] = { "11", "12", "13", "15", "21", "22", "23", "24", "26", "28", "29", "210" };
		mainMenuList = new ArrayList<>();
		sonMenuMap = new HashMap<>();
		rightMenuMap = new HashMap<>();

		JMenuBar menuBar = new JMenuBar();
		Font f = new Font("微软雅黑", Font.PLAIN, 15);

		for (int i = 0; i < mainMenu.length; i++) {
			mainMenuList.add(new JMenu(mainMenu[i]));
			mainMenuList.get(i).setFont(f);
			mainMenuList.get(i).setMnemonic(kjj1[i]);
		}

		for (int i = 0; i < mainMenuList.size(); i++) {
			for (int j = 0; j < sonMenu[i].length; j++) {
				sonMenuMap.put(String.valueOf((i + 1)) + String.valueOf((j + 1)),
						new JMenuItem(sonMenu[i][j], kjj2[i][j]));
				sonMenuMap.get(String.valueOf((i + 1)) + String.valueOf((j + 1))).setFont(f);
				if (Arrays.asList(kjj3).contains(String.valueOf((i + 1)) + String.valueOf((j + 1)))) {
					sonMenuMap.get(String.valueOf((i + 1)) + String.valueOf((j + 1)))
							.setAccelerator(KeyStroke.getKeyStroke(kjj2[i][j], ActionEvent.CTRL_MASK));
				}
				mainMenuList.get(i).add(sonMenuMap.get(String.valueOf((i + 1)) + String.valueOf((j + 1))));
			}
			menuBar.add(mainMenuList.get(i));
		}
		// 添加JCheckBox
		jcb = new JCheckBoxMenuItem("  状态栏(S)");
		jcb.setSelected(true);
		jcb.setFont(f);
		jcb.setFocusPainted(false);
		jcb.setMnemonic(KeyEvent.VK_S);
		mainMenuList.get(3).add(jcb);

		jcbLine = new JCheckBoxMenuItem("  自动换行(W)");
		jcbLine.setSelected(true);
		jcbLine.setFont(f);
		jcbLine.setFocusPainted(false);
		jcbLine.setMnemonic(KeyEvent.VK_W);
		mainMenuList.get(2).add(jcbLine);

		sonMenuMap.get("25").setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_DELETE, 0));
		sonMenuMap.get("27").setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F3, 0));
		sonMenuMap.get("211").setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F5, 0));
		// 初始化，无内容不可用
		sonMenuMap.get("21").setEnabled(false);
		sonMenuMap.get("22").setEnabled(false);
		sonMenuMap.get("23").setEnabled(false);
		sonMenuMap.get("25").setEnabled(false);
		sonMenuMap.get("26").setEnabled(false);
		sonMenuMap.get("27").setEnabled(false);
		// 禁用一些未开发的功能
		sonMenuMap.get("15").setEnabled(false);
		sonMenuMap.get("16").setEnabled(false);
		sonMenuMap.get("51").setEnabled(false);

		// 右键子菜单
		menu = new JPopupMenu();
		for (int j = 0; j < 5; j++) {
			rightMenuMap.put(String.valueOf(2) + String.valueOf((j + 1)), new JMenuItem(sonMenu[1][j], kjj2[1][j]));
			rightMenuMap.get(String.valueOf(2) + String.valueOf((j + 1))).setFont(f);
			menu.add(rightMenuMap.get(String.valueOf(2) + String.valueOf((j + 1))));
		}
		rightMenuMap.put(String.valueOf(2) + String.valueOf((10)), new JMenuItem(sonMenu[1][9], kjj2[1][9]));
		rightMenuMap.get(String.valueOf(2) + String.valueOf((10))).setFont(f);
		menu.add(rightMenuMap.get(String.valueOf(2) + String.valueOf((10))));
		// 初始化，无内容不可用
		rightMenuMap.get("21").setEnabled(false);
		rightMenuMap.get("22").setEnabled(false);
		rightMenuMap.get("23").setEnabled(false);
		rightMenuMap.get("25").setEnabled(false);
		this.setJMenuBar(menuBar);

	}

	private void setText(JFrame app) {
		area = new JTextArea();// 构造一个文本域
		area.setFont(fontEnd);
		area.setLineWrap(isLineWrap);// 如果内容过长，自动换行，在文本域加上滚动条，水平和垂直滚动条始终出现。
		JScrollPane pane = new JScrollPane(area);

		// 获取当前光标位置信息
		area.addCaretListener(new CaretListener() {
			public void caretUpdate(CaretEvent e) {
				try {
					int pos = area.getCaretPosition();
					// 获取行数
					int lineOfC = area.getLineOfOffset(pos) + 1;
					// 获取列数
					int col = pos - area.getLineStartOffset(lineOfC - 1) + 1;
					lblStatus.setText("第 " + lineOfC + " 行, 第 " + col + " 列");
					if (area.getSelectedText() != null) {
						if (sonMenuMap.get("22").isEnabled() == false) {
							sonMenuMap.get("22").setEnabled(true);
							sonMenuMap.get("23").setEnabled(true);
							sonMenuMap.get("25").setEnabled(true);
							rightMenuMap.get("22").setEnabled(true);
							rightMenuMap.get("23").setEnabled(true);
							rightMenuMap.get("25").setEnabled(true);
						}
					} else {
						if (sonMenuMap.get("22").isEnabled()) {
							sonMenuMap.get("22").setEnabled(false);
							sonMenuMap.get("23").setEnabled(false);
							sonMenuMap.get("25").setEnabled(false);
							rightMenuMap.get("22").setEnabled(false);
							rightMenuMap.get("23").setEnabled(false);
							rightMenuMap.get("25").setEnabled(false);
						}
					}
				} catch (Exception ex) {
					System.out.println("无法获取光标位置");
				}
			}
		});

		// 输入监听
		um = new UndoManager();
		area.getDocument().addUndoableEditListener(new UndoableEditListener() {
			@Override
			public void undoableEditHappened(UndoableEditEvent e) {
				um.addEdit(e.getEdit());
				if (sonMenuMap.get("21").isEnabled() == false && um.canUndo()) {
					sonMenuMap.get("21").setEnabled(true);
					rightMenuMap.get("21").setEnabled(true);
				}

				isSaved = false;
				if (isOpenFile()) {
					app.setTitle(fileOpen.getName() + "*");
				} else {
					app.setTitle(fileName + "*");
				}

				if (area.getText() != null) {
					if (sonMenuMap.get("26").isEnabled() == false) {
						sonMenuMap.get("26").setEnabled(true);
						sonMenuMap.get("27").setEnabled(true);
					}

				} else {
					if (sonMenuMap.get("26").isEnabled()) {
						sonMenuMap.get("26").setEnabled(false);
						sonMenuMap.get("27").setEnabled(false);
					}
				}
			}
		});

		// 右键菜单
		area.addMouseListener(new MouseAdapter() {
			public void mouseClicked(MouseEvent e) {
				if (e.getButton() == MouseEvent.BUTTON3) {
					menu.show(area, e.getX(), e.getY());
				}
			}
		});
		this.add(pane);
	}

	protected void centerWindow() {
		Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
		double sWidth = d.getWidth();// 屏幕分辨率的宽
		double sHeight = d.getHeight();// 屏幕分辨率的高
		double fWidth = this.getWidth();// 窗体的宽
		double fHeight = this.getHeight();// 窗体的高
		double posX = (sWidth - fWidth) / 2;// 居中位置左上角的x
		double posY = (sHeight - fHeight) / 2;// 居中位置左上角的y
		this.setLocation((int) posX, (int) posY);
	}

	public static void setCenterWindow(Component d, int fWidth, int fHeight, JDialog frm) {
		double sWidth = d.getWidth();// 屏幕分辨率的宽
		double sHeight = d.getHeight();// 屏幕分辨率的高
		double posX = (sWidth - fWidth) / 2 + d.getLocation().x;// 居中位置左上角的x
		double posY = (sHeight - fHeight) / 2 + d.getLocation().y;// 居中位置左上角的y
		frm.setLocation((int) posX, (int) posY);
		frm.setResizable(false);
	}

	/**
	 * 为菜单添加监听功能
	 * 
	 * @param app：this
	 */
	private void addListener(JFrame app) {

		app.addWindowListener(new WindowAdapter() {

			@Override
			public void windowClosing(WindowEvent e) {
				if (isSaved != true) {
					new CloseingDialog((Notepad) app);
				} else {
					System.exit(0);
				}
			}
		});

		// 退出
		sonMenuMap.get("17").addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				if (isSaved != true) {
					new CloseingDialog((Notepad) app);
				} else {
					System.exit(0);
				}

			}
		});

		// 关于记事本
		sonMenuMap.get("52").addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				new AboutTextDialog((Notepad) app);
			}
		});

		// 计算器
		sonMenuMap.get("53").addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				new CalculatorDialog((Notepad) app);
			}
		});

		// 日历
		sonMenuMap.get("54").addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				new CalendarDialog((Notepad) app, "日历", false);
			}
		});

		// 新建
		sonMenuMap.get("11").addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				if (isSaved != true) {
					new NewBuildDialog((Notepad) app);
				} else {
					area.setText(null);
					app.setTitle("无标题");
					fileOpen = null;
					setOpenFile(false);
					isSaved = true;
				}
			}
		});

		// 字体
		sonMenuMap.get("31").addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				new FontSetDialog((Notepad) app);
			}
		});
		// 查找
		sonMenuMap.get("26").addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				foundDialog = new FoundDialog((Notepad) app);
			}
		});

		// 查找下一个
		sonMenuMap.get("27").addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				if (foundDialog != null && foundDialog.getMsgToFound() != null) {
					foundDialog.getBtnNewButton().doClick();
				} else {
					foundDialog = new FoundDialog((Notepad) app);
				}

			}
		});

		// 替换
		sonMenuMap.get("28").addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				new FoundOrReplace((Notepad) app);
			}
		});

		// 另存为
		sonMenuMap.get("14").addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				String msg = area.getText();
				jfc = new JFileChooser("D:/MP3测试歌曲/文本测试文件");
				int isChoose = jfc.showSaveDialog(null);
				if (jfc.getSelectedFile() != null && isChoose == JFileChooser.APPROVE_OPTION) {
					fileOpen = jfc.getSelectedFile();
					try {
						BufferedWriter bw = new BufferedWriter(new FileWriter(fileOpen));
						bw.write(msg);
						System.out.println("保存成功！");
						bw.close();
						app.setTitle(fileOpen.getName());
						setOpenFile(true);
						isSaved = true;
					} catch (IOException e1) {
						System.out.println("保存失败！");
						setOpenFile(false);
						isSaved = false;
					}
				} else {
					System.out.println("no save");

				}

			}
		});

		ArrayList> listMap = new ArrayList>();
		listMap.add(sonMenuMap);
		listMap.add(rightMenuMap);
		for (Map mapItem : listMap) {
			// 撤销
			mapItem.get("21").addActionListener(new ActionListener() {
				@Override
				public void actionPerformed(ActionEvent e) {
					if (um.canUndo()) {
						um.undo();
						if (!um.canUndo()) {
							mapItem.get("21").setEnabled(false);
						}
					} else {
						System.out.println("cann't undo");
					}

				}
			});

			// 剪切
			mapItem.get("22").addActionListener(new ActionListener() {
				@Override
				public void actionPerformed(ActionEvent e) {
					area.cut();
					System.out.println("Cut");
				}
			});

			// 复制
			mapItem.get("23").addActionListener(new ActionListener() {
				@Override
				public void actionPerformed(ActionEvent e) {
					area.copy();
					System.out.println("Copy");
				}
			});

			// 粘贴
			mapItem.get("24").addActionListener(new ActionListener() {
				@Override
				public void actionPerformed(ActionEvent e) {
					area.paste();
					System.out.println("write");
				}
			});

			// 删除
			mapItem.get("25").addActionListener(new ActionListener() {
				@Override
				public void actionPerformed(ActionEvent e) {
					area.replaceSelection(null);
					System.out.println("remove");

				}
			});

			// 全选
			mapItem.get("210").addActionListener(new ActionListener() {
				@Override
				public void actionPerformed(ActionEvent e) {
					area.setSelectionStart(0);
					area.setSelectionEnd(area.getText().length());
				}
			});
		}
		// 转到
		sonMenuMap.get("29").addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				new MoveDialog((Notepad) app);
			}
		});

		// 时间和日期
		sonMenuMap.get("211").addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");// 设置日期格式
				System.out.println(df.format(new Date()));// new Date()为获取当前系统时间
				area.replaceSelection(df.format(new Date()));

			}
		});

		// 自动换行
		jcbLine.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				if (isLineWrap) {
					area.setLineWrap(false);
					isLineWrap = false;
					System.out.println("自动换行取消");
				} else {
					area.setLineWrap(true);
					isLineWrap = true;
					System.out.println("自动换行成功");
				}
			}
		});

		// 打开文件
		sonMenuMap.get("12").addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				if (isSaved == false) {
					new OpenBuildDialog((Notepad) app);
				} else {
					jfc = new JFileChooser("D:/MP3测试歌曲/文本测试文件");
					jfc.setFileSelectionMode(JFileChooser.FILES_ONLY);
					int isChoose = jfc.showOpenDialog(null);
					if (jfc.getSelectedFile() != null && isChoose == JFileChooser.APPROVE_OPTION) {
						fileOpen = jfc.getSelectedFile();
						try {
							BufferedReader br = new BufferedReader(new FileReader(fileOpen));
							String msg;
							String str = "";
							while ((msg = br.readLine()) != null) {
								str = str + msg + "\r\n";
							}
							area.setText(str);
							br.close();
							area.setCaretPosition(0);
							app.setTitle(fileOpen.getName());
							setOpenFile(true);
							isSaved = true;
							um = new UndoManager();
							sonMenuMap.get("21").setEnabled(false);
							rightMenuMap.get("21").setEnabled(false);
							System.out.println("打开成功！");
						} catch (IOException e1) {
							System.out.println("打开失败！");
							setOpenFile(false);
						}
					} else {
						System.out.println("no chose");
					}
				}
			}
		});

		// 保存
		sonMenuMap.get("13").addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				String msg = area.getText();
				jfc = new JFileChooser("D:/MP3测试歌曲/文本测试文件");
				if (isOpenFile() == false) {
					int isChoose = jfc.showSaveDialog(null);
					if (jfc.getSelectedFile() != null && isChoose == JFileChooser.APPROVE_OPTION) {
						fileOpen = jfc.getSelectedFile();
						try {
							BufferedWriter bw = new BufferedWriter(new FileWriter(fileOpen));
							bw.write(msg);
							System.out.println("保存成功！");
							bw.close();
							app.setTitle(fileOpen.getName());
							setOpenFile(true);
							isSaved = true;
						} catch (IOException e1) {
							System.out.println("保存失败！");
							setOpenFile(false);
							isSaved = false;
						}
					} else {
						System.out.println("no save");
					}
				} else if (fileOpen != null) {
					try {
						BufferedWriter bw = new BufferedWriter(new FileWriter(fileOpen));
						bw.write(msg);
						System.out.println("保存成功！");
						bw.close();
						app.setTitle(fileOpen.getName());
						setOpenFile(true);
						isSaved = true;
					} catch (IOException e1) {
						System.out.println("保存失败！");
						setOpenFile(false);
						isSaved = false;
					}
				} else {
					System.out.println("fileOpen = null  no save");
				}
			}
		});

		// 状态栏
		jcb.addActionListener(new ActionListener() {
			boolean isRemove = false;

			@Override
			public void actionPerformed(ActionEvent e) {
				if (isRemove) {
					panBottom.setVisible(true);
					System.out.println("添加成功");
					isRemove = false;
				} else {
					panBottom.setVisible(false);
					isRemove = true;
					System.out.println("隐藏成功");
				}

			}

		});

	}

	public static JPopupMenu getMenu() {
		return menu;
	}

	public static void setMenu(JPopupMenu menu) {
		Notepad.menu = menu;
	}

	public String getFileName() {
		return fileName;
	}

	public void setFileName(String fileName) {
		this.fileName = fileName;
	}

	public JTextArea getArea() {
		return area;
	}

	public void setArea(JTextArea area) {
		this.area = area;
	}

	public JLabel getLblStatus() {
		return lblStatus;
	}

	public void setLblStatus(JLabel lblStatus) {
		this.lblStatus = lblStatus;
	}

	public ArrayList getMainMenuList() {
		return mainMenuList;
	}

	public void setMainMenuList(ArrayList mainMenuList) {
		this.mainMenuList = mainMenuList;
	}

	public Map getSonMenuMap() {
		return sonMenuMap;
	}

	public void setSonMenuMap(Map sonMenuMap) {
		this.sonMenuMap = sonMenuMap;
	}

	public Map getRightMenuMap() {
		return rightMenuMap;
	}

	public void setRightMenuMap(Map rightMenuMap) {
		this.rightMenuMap = rightMenuMap;
	}

	public JPanel getPanBottom() {
		return panBottom;
	}

	public void setPanBottom(JPanel panBottom) {
		this.panBottom = panBottom;
	}

	public boolean isOpenFile() {
		return isOpenFile;
	}

	public void setOpenFile(boolean isOpenFile) {
		this.isOpenFile = isOpenFile;
	}

	public boolean isSaved() {
		return isSaved;
	}

	public void setSaved(boolean isSaved) {
		this.isSaved = isSaved;
	}

	public boolean isLineWrap() {
		return isLineWrap;
	}

	public void setLineWrap(boolean isLineWrap) {
		this.isLineWrap = isLineWrap;
	}

	public File getFileOpen() {
		return fileOpen;
	}

	public void setFileOpen(File fileOpen) {
		this.fileOpen = fileOpen;
	}

	public JFileChooser getJfc() {
		return jfc;
	}

	public void setJfc(JFileChooser jfc) {
		this.jfc = jfc;
	}

	public Font getFontEnd() {
		return fontEnd;
	}

	public void setFontEnd(Font fontEnd) {
		this.fontEnd = fontEnd;
	}

	public UndoManager getUm() {
		return um;
	}

	public void setUm(UndoManager um) {
		this.um = um;
	}

	public static long getSerialversionuid() {
		return serialVersionUID;
	}

	public void setDateTimeContent(String dateTimeString) {
		area.replaceSelection(dateTimeString);
	}
}

打开程序的话，写个主类调用一下：

package com.app.notepadplus;

public class App {
	public static Notepad app;

	public static void main(String[] args) {
		app = new Notepad();
		app.setVisible(true);
	}

}

 

接下来就是各个子窗口，查找，替换，字体设置，计算器之类的辅助功能之类的

太杂了，就不贴了吧。。。。。。

有空把代码打包一下，直接上传吧....