Java编写的文本编辑器

聖色代码(编译后可直接运行)：//简单的类似记事本的文档编辑器I臺拢的记事枣丈丼(E)躺辑(D格戎⑼査看(V)誰于④)輻网(H)就绪欽迎悚用该记事本！importjava.awt.*;importjava.awt.event.*;importjavax.swing.*;importjavax.swing.event.*;importjava.io.*;importjava.awt.font.*;importjavax.swing.undo.UndoManager;publicclassMyTxt{publicstaticvoidmain(String[]args){Aframeframe=newAframe();frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.show();}}classAframeextendsJFrame{publicAframe(){setTitle(“我的记事^");setSize(WIDTH,HEIGHT);ContainercontentPane=getContentPane();JPaneltxtPanel=newJPanel();JPanelcomboxPanel=newJPanel();JPaneltextPanel=newJPanel();txtArea=newJTextArea("",17,40);JScrollPanescrollPane=newJScrollPane(txtArea);txtPanel.add(scrollPane);contentPane.add(comboxPanel,BorderLayout.NORTH);contentPane.add(txtPanel);contentPane.add(textPanel,BorderLayout.SOUTH);//Caidanlan:添加主菜单并设置快捷键JMenuBarmenuBar=newJMenuBar();setJMenuBar(menuBar);fileMenu二newJMenu("文件(F)");editMenu二newJMenu("编辑(E)");typeMenu二newJMenu("格式(O)");viewMenu二newJMenu("查看(V)");helpMenu二newJMenu("帮助(H)");aboutMenu二newJMenu("关于(A)");fileMenu.setMnemonic('F');editMenu.setMnemonic('E');typeMenu.setMnemonic('O');viewMenu.setMnemonic('V');helpMenu.setMnemonic('H');aboutMenu.setMnemonic('A');menuBar.add(fileMenu);menuBar.add(editMenu);menuBar.add(typeMenu);menuBar.add(viewMenu);menuBar.add(aboutMenu);menuBar.add(helpMenu);//wenjian“文件”菜单的子菜单添加以及设置加速器，监听器aa二fileMenu.add(newShowAction("新建"))；aa.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,InputEvent.CTRL_MASK));ab二fileMenu.add(newShowAction("打开"))；ab.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O,InputEvent.CTRL_MASK));ac二fileMenu.add(newShowAction("保存"))；ac.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,InputEvent.CTRL_MASK));ad二fileMenu.add(newShowAction("另存为"))；ad.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A,InputEvent.CTRL_MASK));fileMenu.addSeparator();ae二fileMenu.add(newShowAction("页面设置"))；ae.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_U,InputEvent.CTRL_MASK));af二fileMenu.add(newShowAction("打印"))；af.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_P,InputEvent.CTRL_MASK));fileMenu.addSeparator();〃分割线ag二fileMenu.add(newShowAction("退出"))；ag.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X,InputEvent.CTRL_MASK));〃bianji“编辑”菜单的子菜单添加以及设置加速器，监听器ah=editMenu.add(newShowAction("撤消"))；editMenu.addSeparator();ah.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Z,InputEvent.CTRL_MASK));ai=editMenu.add(newShowAction("剪切"))；ai.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X,InputEvent.CTRL_MASK));aj=editMenu.add(newShowAction("复制"))；aj.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C,InputEvent.CTRL_MASK));an二editMenu.add(newShowAction("粘贴"))；an.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V,InputEvent.CTRL_MASK));ak二editMenu.add(newShowAction("删除"))；ak.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_L,InputEvent.CTRL_MASK));editMenu.addSeparator();al二editMenu.add(newShowAction("查找"))；al.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F,InputEvent.CTRL_MASK));am二editMenu.add(newShowAction("全选"))；am.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A,InputEvent.CTRL_MASK));〃geshi“格式”菜单的子菜单添加以及设置加速器，监听器zdhh二newJMenu("自动换行(L)");zdhh.setMnemonic('L');typeMenu.add(zdhh);ButtonGroupgroup=newButtonGroup();xz=newJRadioButtonMenultem("选择")；xz.addActionListener(newShowAction("选择"))；xz.setSelected(true);qxxz二newJRadioButtonMenultem("取消")；qxxz.addActionListener(newShowAction("取消"))；qxxz.setSelected(true);group.add(xz);group.add(qxxz);zdhh.add(xz);zdhh.add(qxxz);bj=typeMenu.add(newShowAction("背景颜色"))；bj.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C,InputEvent.CTRL_MASK));zt=typeMenu.add(newShowAction("字体"))；zt.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F,InputEvent.CTRL_MASK));//字体弹出框中的“确定”按钮que=newButton("确定")；que.addActionListener(newboxlistener());//chakan“查看”菜单的子菜单添加以及设置加速器，监听器ztl二viewMenu.add(newShowAction("状态栏"))；ztl.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,InputEvent.CTRL_MASK));//guanyu“关于”菜单的子菜单添加以及设置加速器，监听器zzxx=aboutMenu.add(newShowAction("作者信息"))；zzxx.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,InputEvent.CTRL_MASK));bq=aboutMenu.add(newShowAction(""));bq.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_B,InputEvent.CTRL_MASK));sm二aboutMenu.add(newShowAction("声明"))；sm.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,InputEvent.CTRL_MASK));//bangzhu“帮助”菜单的子菜单添加以及设置加速器，监听器shm=helpMenu.add(newShowAction("说明"))；shm.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,InputEvent.CTRL_MASK));//文本框底部工具栏的设置toolbar2=newJToolBar();textPanel.add(toolbar2);text1二newJTextField("就绪",10);text2=newJTextField("欢迎使用该记事本！",10);text3=newJTextField("",10);text4=newJTextField("",10);textPanel.setLayout(newGridLayout(1,4));toolbar2.add(text1);toolbar2.add(text2);toolbar2.add(text3);toolbar2.add(text4);text1.setEditable(false);text2.setEditable(false);text3.setEditable(false);text4.setEditable(false);//组合框的设置//字体zitiLabel二newJLabel("字体");comboxPanel.add(zitiLabel);Stringzit[]={"宋^"，“华文行楷","楷体","黑体","幼圆"};zitibox=newJComboBox(zit);comboxPanel.add(zitibox);//颜色yanseLabel二newJLabel("颜色");comboxPanel.add(yanseLabel);Stringyans[]={"黑色","蓝色","绿色","红色","黄色","蓝绿色","浅灰色"};yansebox=newJComboBox(yans);comboxPanel.add(yansebox);//大小daxiaoLabel二newJLabel("大小");comboxPanel.add(daxiaoLabel);Stringdax[]={"15","10","5","20","25","30","35","40","..."};daxiaobox=newJComboBox(dax);comboxPanel.add(daxiaobox);zitibox.setEditable(true);yansebox.setEditable(true);daxiaobox.setEditable(true);comboxPanel.setLayout(newFlowLayout(FlowLayout丄EFT));//靠左排歹U//组合框注册监听器yansebox.addActionListener(newboxlistener());zitibox.addActionListener(newboxlistener());daxiaobox.addActionListener(newboxlistener());txtPanel.setLayout(newGridLayout(1,1));//实例化“撤销”um=newUndoManager();txtArea.getDocument().addUndoableEditListener(um);}//菜单栏的接口实现privateclassShowActionextendsAbstractAction{publicShowAction(Stringname){super(name);}publicvoidactionPerformed(ActionEvente){Objects=e.getSource();//新建if(s==aa){if(txtArea.getText().equals("")){txtArea.setText("");}else{intn=JOptionPane.showConfirmDialog(Aframe.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){txtArea.setText("");setTitle("无标题"+""+"记事本")；}elseif(n==JOptionPane.YES_OPTION){save.setVisible(true);Stringname=save.getDirectory()+save.getFile();try{FileOutputStreamout=newFileOutputStream(name);out.write(txtArea.getText().getBytes());out.close();catch(IOExceptiona){System.err.println("保存失败。！");}}}}//打开if(s==ab){open.setVisible(true);Stringname=open.getDirectory()+open.getFile();Stringname2=open.getFile();setTitle(name2);try{FileInputStreamin=newFileInputStream(name);byte[]ia=newbyte[in.available()];in.read(ia);txtArea.setText(newString(ia));in.close();}catch(IOExceptiona){System.err.println("获取文件失败！")；}}//另存为if(s==ad){save.setVisible(true);Stringname=save.getDirectory()+save.getFile();try{FileOutputStreamout=newFileOutputStream(name);out.write(txtArea.getText().getBytes());out.close();}catch(IOExceptiona){System.err.println("保存失败。！");}shifulingcun=1;}//保存if(s==ac){if(shifulingcun!=1){save.setVisible(true);}Stringname=save.getDirectory()+save.getFile();try{FileOutputStreamout=newFileOutputStream(name);out.write(txtArea.getText().getBytes());out.close();}catch(IOExceptionb){System.err.println("保存文件失败")；}}//退出if(s==ag){intselection=JOptionPane.showConfirmDialog(Aframe.this,"确定退出么?","退出?",JOptionPane.OK_CANCEL_OPTION,JOptionPane.WARNING_MESSAGE);if(selection==JOptionPane.OK_OPTION){System.exit(0);}}//选择自动换行if(s==xz){txtArea.setLineWrap(true);}//取消自动换行if(s==qxxz){txtArea.setLineWrap(false);}//背景颜色if(s==bj){Colorcolor=JColorChooser.showDialog(Aframe.this,"调色板"txtArea.getBackground());if(color!=null)txtArea.setBackground(color);}//作者信息if(s==zzxx){intselection=JOptionPane.showConfirmDialog(Aframe.this,"“我的记事本”编写小组成员：悦，王征，光"辉,作"者信息",JOptionPane.DEFAULT_OPTION);}//if(s==bq){intselection=JOptionPane.showConfirmDialog(Aframe.this,"所有，盗版必究！","",JOptionPane.DEFAULT_OPTION);}//声明if(s==sm){intselection=JOptionPane.showConfirmDialog(Aframe.this,"该程序仅用于实践交流",声"明",JOptionPane.DEFAULT_OPTION);}//说明if(s==shm){intselection=JOptionPane.showConfirmDialog(Aframe.this,"由于种种原因，该版本记事本还存在很多缺陷，我们将在以后的工作中予以改进",说"明",JOptionPane.DEFAULT_OPTION);}//剪切复制粘贴if(s==ai||s==cutTtem){txtArea.cut();}if(s==aj){txtArea.copy();}if(s==an){txtArea.paste();}//删除if(s==ak){txtArea.replaceRange("",txtArea.getSelectionStart(),txtArea.getSelectionEnd());}//全选if(s==am){txtArea.selectAll();}//撤销if(s==ah){um.undo();}//字体if(s==zt){tishi.setFont(newFont("华文行楷",1,15));tanchu.setLocation(300,250);tanchu.setSize(200,150);tanchu.setTitle("字体设置")；tanchu.setLayout(newGridLayout(2,2,2,2));tanchu.add(tishi);tanchu.add(daxiaobox);tanchu.add(que);tanchu.add(zitibox);tanchu.setVisible(true);}//状态栏aaaaa.setText("当前字体是"+ff+"颜色是"+zzz+"大小是"+kk);if(s==ztl)tanchu.setLocation(300,250);tanchu.setSize(300,150);tanchu.setTitle("当前状态")；tanchu.setLayout(newGridLayout(2,2,2,2));aaaaa.setEditable(false);tanchu.add(aaaaa);tanchu.add(que);tanchu.setVisible(true);}//查找}}//组合框的接口实现privateclassboxlistenerimplementsActionListener{publicvoidactionPerformed(ActionEventee){Objectss=yansebox.getSelectedItem();Objectzz=zitibox.getSelectedItem();Objectdx=daxiaobox.getSelectedItem();Stringtr=(String)ss;Stringtz=(String)zz;Stringtd=(String)dx;//字体菜单中弹出菜单“确定”的响应if(ee.getSource()==que){tanchu.dispose();}//颜色if(tr二二"红色"){txtArea.setForeground(Color.red);zzz二"红色"；}if(tr二二"黑色"){txtArea.setForeground(Color.black);zzz="黑色"；}if(tr二二"绿色"){txtArea.setForeground(Color.green);ZZZ二"绿色"；}if(tr二二"蓝色"){txtArea.setForeground(Color.blue);ZZZ二"蓝色"；}if(tr二二"黄色"){txtArea.setForeground(Color.yellow);11」，■11zzz二黄色；}if(tr二二"蓝绿色"){txtArea.setForeground(Color.cyan);zzz="蓝绿色"；}if(tr=="浅灰色"){txtArea.setForeground(Color.lightGray);zzz="浅灰色"；}//字体if(tz=="华文行楷"){Fontf二txtArea.getFont();txtArea.setFont(newFont("华文行楷",f.getStyle(),f.getSize()));ff="华文行楷"；}if(tz二二'楷^"){Fontf=txtArea.getFont();txtArea.setFont(newFont("楷体",f.getStyle(),f.getSize()));ff="楷体"；}if(tz=="宋^"){Fontf=txtArea.getFont();txtArea.setFont(newFont("宋体",f.getStyle(),f.getSize()));ff二"宋体"；}if(tz=="黑^"){Fontf=txtArea.getFont();txtArea.setFont(newFont("黑体",f.getStyle(),f.getSize()));ff二"黑体"；}if(tz=="幼圆"){Fontf=txtArea.getFont();txtArea.setFont(newFont("幼圆",f.getStyle(),f.getSize()));ff二"幼圆"；}//大小if(td=="5"){Fontf=txtArea.getFont();txtArea.setFont(newFont(f.getName(),f.getStyle(),5));kk="5";}if(td=="10"){Fontf=txtArea.getFont();txtArea.setFont(newFont(f.getName(),f.getStyle(),10));kk="10";}if(td=="15"){Fontf=txtArea.getFont();txtArea.setFont(newFont(f.getName(),f.getStyle(),15));kk="15";}if(td=="2