java基础教程案例：[52]java 记事本代码1-java-编程

由于百度经验字数的限制我将全部的代码分为几部分，你可以把每个部分的代码黏到一块直接运行。

import java.util.*;

import javax.swing.*;

import javax.swing.event.CaretEvent;

import javax.swing.event.CaretListener;

import javax.swing.event.ChangeEvent;

import javax.swing.event.ChangeListener;

import javax.swing.event.DocumentEvent;

import javax.swing.event.DocumentListener;

import javax.swing.event.MenuEvent;

import javax.swing.event.MenuListener;

import javax.swing.event.UndoableEditEvent;

import javax.swing.event.UndoableEditListener;

import javax.swing.text.BadLocationException;

import javax.swing.undo.*;

public class ofMyNotePad extends JFrame implements ActionListener,WindowListener,DocumentListener

{

JButton jb1,jb2,jb3,jb4,jb5;

JToolBar jtb;

JScrollPane jsp;

JTextArea jta;

JMenu file,editor,format,watch,help;

JMenuBar jmb;

JMenuItem creat,open,save,saveas,print,exit;

JMenuItem undo,cut,copy,paste,delete,find,findnext,replace,clip,selectall,time;

JMenuItem font;

JCheckBoxMenuItem auto,state;

JMenuItem watchhelp,about;

JLabel helpJLabel,timeJLabel,lineJLabel;

JToolBar stateJToolBar;

//创建鼠标右键单击菜单

JPopupMenu popupMenu;

JMenuItem popupMenu_Undo,popupMenu_Cut,popupMenu_Copy,popupMenu_Delete,popupMenu_Paste,popupMenu_SelectAll;

//---------------创建撤消操作管理器

protected UndoManager isundo=new UndoManager();

protected UndoableEditListener undoHandler=new UndoHandler();

Toolkit toolKit=Toolkit.getDefaultToolkit();

//获取默认工具包。

Clipboard clipBoard=toolKit.getSystemClipboard();

//获取系统 Clipboard 的一个实例，

//该 Clipboard 可作为本机平台提供的剪贴板工具的接口。

window wd=new window(this);

String OldValue;

public ofMyNotePad()

{

super("新建文本文档"+"-记事本");

jta=new JTextArea();

jta.getDocument().addUndoableEditListener(undoHandler);

// 添加负责通知任何更改的撤消侦听器

jta.getDocument().addDocumentListener(this);

// 添加负责通知任何更改的文档侦听器

jsp=new JScrollPane(jta);

jmb=new JMenuBar();

jtb=new JToolBar();

//创建一级菜单并添加标记符

file=new JMenu("文件(F)",true);

file.setMnemonic('F');

editor=new JMenu("编辑(E)",true);

editor.addMenuListener(new MenuListener() {

public void menuSelected(MenuEvent e){CheckItemChange();}

public void menuDeselected(MenuEvent e) {}

public void menuCanceled(MenuEvent e) {}});

editor.setMnemonic('E');

format=new JMenu("格式(O)",true);

format.setMnemonic('O');

watch=new JMenu("查看(V)",true);

watch.setMnemonic('V');

help=new JMenu("帮助(H)",true);

help.setMnemonic('H');

//创建二级菜单并添加快捷方式和监听

//创建file菜单

creat=new JMenuItem("新建(N)");

creat.setMnemonic('N');

creat.addActionListener(this);

creat.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,InputEvent.CTRL_MASK,false));

open=new JMenuItem("打开(O)...");

open.setMnemonic('O');

open.addActionListener(this);

open.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O,InputEvent.CTRL_MASK,false));

save=new JMenuItem("保存(S)");

save.setMnemonic('S');

save.addActionListener(this);

save.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,InputEvent.CTRL_MASK,false));

saveas=new JMenuItem("另存为(A)...");

saveas.setMnemonic('A');

saveas.addActionListener(this);

print=new JMenuItem("打印(P)");

print.setMnemonic('P');

print.addActionListener(this);

print.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_P,InputEvent.CTRL_MASK,false));

exit=new JMenuItem("退出(X)");

exit.setMnemonic('X');

exit.addActionListener(this);

//创建editor菜单

undo=new JMenuItem("撤销(U)");

undo.setMnemonic('Z');

undo.addActionListener(this);

//undo.setEnabled(false);

undo.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Z,InputEvent.CTRL_MASK,false));

cut=new JMenuItem("剪切(T)");

cut.addActionListener(this);

// cut.setEnabled(false);

cut.setMnemonic('X');

cut.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X,InputEvent.CTRL_MASK,false));

copy=new JMenuItem("复制(C)");

copy.addActionListener(this);

copy.setMnemonic('C');

//copy.setEnabled(false);

copy.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C,InputEvent.CTRL_MASK,false));

paste=new JMenuItem("黏贴(P)");

paste.addActionListener(this);

paste.setMnemonic('V');

paste.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V,InputEvent.CTRL_MASK,false));

delete=new JMenuItem("删除(L)");

delete.addActionListener(this);

delete.setMnemonic('L');

//delete.setEnabled(false);

delete.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_DELETE,0,false));

find=new JMenuItem("查找(F)...");

find.addActionListener(this);

find.setMnemonic('F');

find.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F,InputEvent.CTRL_MASK,false));

findnext=new JMenuItem("查找下一个(N)");

findnext.setMnemonic('N');

findnext.addActionListener(this);

findnext.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F3,0,false));

replace=new JMenuItem("替换(R)...");

replace.setMnemonic('H');

replace.addActionListener(this);

replace.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_H,InputEvent.CTRL_MASK,false));

clip=new JMenuItem("转到(G)...");

clip.setMnemonic('G');

clip.addActionListener(this);

clip.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_G,InputEvent.CTRL_MASK,false));

selectall=new JMenuItem("全选(A)");

selectall.setMnemonic('A');

selectall.addActionListener(this);

selectall.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A,InputEvent.CTRL_MASK,false));

time=new JMenuItem("时间/日期(D)");

time.setMnemonic('D');

time.addActionListener(this);

time.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F5,0,false));

//创建format菜单

auto=new JCheckBoxMenuItem("自动换行(W)");

auto.setState(false);

auto.setMnemonic('W');

auto.addActionListener(this);

auto.addChangeListener(new ChangeListener() {

@Override

public void stateChanged(ChangeEvent e)

{

// TODO Auto-generated method stub

if(auto.isSelected())

{

jta.setLineWrap(true);

}else

{

jta.setLineWrap(false);

}

}

});

font=new JMenuItem("字体(F)...");

font.setMnemonic('F');

font.addActionListener(this);

//创建watch菜单

state=new JCheckBoxMenuItem("状态(S)");

state.setState(false);

state.setMnemonic('S');

state.addActionListener(this);

//创建help菜单

watchhelp=new JMenuItem("查看帮助(H)");

watchhelp.setMnemonic('H');

watchhelp.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F1,0,false));

watchhelp.addActionListener(this);

about=new JMenuItem("关于记事本(A)...");

about.setMnemonic('A');

about.addActionListener(this);

//创建右键单击菜单

//-------------------创建右键弹出菜单

popupMenu=new JPopupMenu();

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');

// 撤消选项初始设为不可用

popupMenu_Undo.setEnabled(false);

//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);

popupMenu_Cut.addActionListener(this);

popupMenu_Copy.addActionListener(this);

popupMenu_Paste.addActionListener(this);

popupMenu_Delete.addActionListener(this);

popupMenu_SelectAll.addActionListener(this);

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