用JAVA编写的记事本设计.doc

用Java编写的记事本程序作者：未知 文章来源：访问次数：6050次 加入时间：2005年01月19日 这个学期，我们学习了Java编程，期末之时老师要我们编个记事本作为这门课程的课程设计，我写了一个，大体上的功能都实现了，只有撤销的功能没有实现，请各位大虾指点一下，“撤销”的算法，不甚感激！特将记事本的源码附下，请大家指点，看还有没有更简洁高效的算法，请不要吝啬，我的E-mail:,欢迎大家来信指点！/*题目：记事本程序*Author: Jeason* 2004-12-20*/package jeason;import java.awt.*;import java.awt.event.*;import javax.swing.*;import javax.swing.event.*;import java.io.*;import java.util.*;import java.text.*;public class Jsb/boolean dirty=true;String filename=;String strtext=;/ Menu /JFrame frame=new JFrame(我的记事本);JPopupMenu pop=new JPopupMenu(弹出);JTextArea text=new JTextArea();JLabel statubar=new JLabel(状态栏);JMenuBar Mbar=new JMenuBar();JFileChooser jFileChooser1=new JFileChooser();JColorChooser jColor=new JColorChooser();JMenu jFile=new JMenu(文件);JMenu jEdit=new JMenu(编辑);JMenu jFormat=new JMenu(格式);JMenu jHelp=new JMenu(帮助);JMenuItem jnew=new JMenuItem(新建(N);public Jsb() /无参数的构造函数/this.dirty=false;/final BorderLayout borderLayout1=new BorderLayout();frame.setSize(600,500);/frame.addWindowListener(new Jsb_frame_closingAdapter(this);JPanel panel=new JPanel();panel.setLayout(borderLayout1);/布局panel.add(new JScrollPane(text);/滚动条panel.add(statubar,borderLayout1.SOUTH);frame.getContentPane().add(panel);/frame.setJMenuBar(Mbar); /将主菜单添加到窗体中/* jnew*/ /jnewjnew.addActionListener(new File_new_actionAdapter(this);jnew.setMnemonic(N);/N上下划线jnew.setAccelerator(KeyStroke.getKeyStroke(N,java.awt.Event.CTRL_MASK,true);/快捷方式/* * jopen*/JMenuItem jopen=new JMenuItem(打开(O);/jopenjopen.addActionListener(new File_open_actionAdapter(this);jopen.setMnemonic(O);jopen.setAccelerator(KeyStroke.getKeyStroke(O,java.awt.Event.CTRL_MASK,true);/* jsave*/JMenuItem jsave=new JMenuItem(保存(S);jsave.addActionListener(new File_save_actionAdapter(this);jsave.setMnemonic(S);jsave.setAccelerator(KeyStroke.getKeyStroke(S,java.awt.Event.CTRL_MASK,true);/* jsave as*/JMenuItem jsaveas=new JMenuItem(另存为.);jsaveas.addActionListener(new File_saveas_actionAdapter(this);/* jquite*/JMenuItem jquite=new JMenuItem(关闭(Q);jquite.addActionListener(new File_quite_actionAdapter(this);jquite.setMnemonic(Q);jquite.setAccelerator(KeyStroke.getKeyStroke(Q,java.awt.Event.CTRL_MASK,true);/-/ jFile code of end/-/* jEdit code*/jundoJMenuItem jundo=new JMenuItem(撤销(U);jundo.addActionListener(new Edit_undo_actionAdapter(this);jundo.setMnemonic(U);jundo.setAccelerator(KeyStroke.getKeyStroke(U,java.awt.Event.CTRL_MASK,true);/* jcut*/JMenuItem jcut=new JMenuItem(剪切(X);jcut.addActionListener(new Edit_cut_actionAdapter(this);jcut.setMnemonic(X);jcut.setAccelerator(KeyStroke.getKeyStroke(X,java.awt.Event.CTRL_MASK,true);/* jcopy*/JMenuItem jcopy=new JMenuItem(复制(C);jcopy.addActionListener(new Edit_copy_actionAdapter(this);jcopy.setMnemonic(C);jcopy.setAccelerator(KeyStroke.getKeyStroke(C,java.awt.Event.CTRL_MASK,true);/* jpaste*/JMenuItem jpaste=new JMenuItem(粘贴(V);jpaste.addActionListener(new Edit_paste_actionAdapter(this);jpaste.setMnemonic(V);jpaste.setAccelerator(KeyStroke.getKeyStroke(V,java.awt.Event.CTRL_MASK,true);/* jdelete*/ JMenuItem jdelete=new JMenuItem(删除(D);jdelete.addActionListener(new Edit_delete_actionAdapter(this);jdelete.setMnemonic(D);jdelete.setAccelerator(KeyStroke.getKeyStroke(D,java.awt.Event.CTRL_MASK,true);/* jfind*/ JMenuItem jfind=new JMenuItem(查找(F);jfind.addActionListener(new Edit_find_actionAdapter(this);jfind.setMnemonic(F);jfind.setAccelerator(KeyStroke.getKeyStroke(F,java.awt.Event.CTRL_MASK,true);/* jreplace*/JMenuItem jreplace=new JMenuItem(替换(R);jreplace.addActionListener(new Edit_replace_actionAdapter(this);jreplace.setMnemonic(R);jreplace.setAccelerator(KeyStroke.getKeyStroke(R,java.awt.Event.CTRL_MASK,true);/*jselectall*/JMenuItem jselectall=new JMenuItem(全选(A);jselectall.addActionListener(new Edit_selectall_actionAdapter(this);jselectall.setMnemonic(A);jselectall.setAccelerator(KeyStroke.getKeyStroke(A,java.awt.Event.CTRL_MASK,true);/* jdate*/JMenuItem jdate=new JMenuItem(日期/时间(T);jdate.addActionListener(new Edit_timedate_actionAdapter(this);jdate.setMnemonic(T);jdate.setAccelerator(KeyStroke.getKeyStroke(T,java.awt.Event.CTRL_MASK,true);/-/ jEdit code of end/-/* jword*/JMenuItem jword=new JMenuItem(自动换行);jword.addActionListener(new Format_word_actionAdapter(this);/* jfont*/JMenuItem jfont=new JMenuItem(字体.);jfont.addActionListener(new Format_font_actionAdapter(this);/* jcolor*/JMenuItem jcolor=new JMenuItem(颜色.);jcolor.addActionListener(new Format_color_actionAdapter(this);/-/ jFormat code of end/-/* jabout*/JMenuItem jabout=new JMenuItem(关于作者(A);jabout.addActionListener(new Help_about_actionAdapter(this);jabout.setMnemonic(A);jabout.setAccelerator(KeyStroke.getKeyStroke(A,java.awt.Event.CTRL_MASK,true);/-/ jHelp code of end/-/*-* PopupMenuItem*-*/* pundo*/JMenuItem pundo=new JMenuItem(撤销(U);pundo.addActionListener(new Pop_undo_actionAdapter(this);pundo.setMnemonic(U);pundo.setAccelerator(KeyStroke.getKeyStroke(U,java.awt.Event.CTRL_MASK,true);/* pcut*/JMenuItem pcut=new JMenuItem(剪切(X);pcut.addActionListener(new Pop_cut_actionAdapter(this);pcut.setMnemonic(X);pcut.setAccelerator(KeyStroke.getKeyStroke(X,java.awt.Event.CTRL_MASK,true);/* pcopy*/JMenuItem pcopy=new JMenuItem(复制(C);pcopy.addActionListener(new Pop_copy_actionAdapter(this);pcopy.setMnemonic(C);pcopy.setAccelerator(KeyStroke.getKeyStroke(C,java.awt.Event.CTRL_MASK,true);/* ppaste*/JMenuItem ppaste=new JMenuItem(粘贴(V);ppaste.addActionListener(new Pop_paste_actionAdapter(this);ppaste.setMnemonic(V);ppaste.setAccelerator(KeyStroke.getKeyStroke(V,java.awt.Event.CTRL_MASK,true);/*pdelete*/ JMenuItem pdelete=new JMenuItem(删除(D);pdelete.addActionListener(new Pop_delete_actionAdapter(this);pdelete.setMnemonic(D);pdelete.setAccelerator(KeyStroke.getKeyStroke(D,java.awt.Event.CTRL_MASK,true);/ text/text.setDoubleBuffered(false);text.setToolTipText(杨勇的记事本);text.setVerifyInputWhenFocusTarget(true);text.setText();text.addCaretListener(new Jsb_text_caretAdapter(this);text.addMouseListener(new Jsb_text_mouseAdapter(this);text.addAncestorListener(new Jsb_text_ancestorAdapter(this);/ Mbar.add(jFile);Mbar.add(jEdit);Mbar.add(jFormat);Mbar.add(jHelp);jFile.add(jnew);jFile.add(jopen);jFile.addSeparator();jFile.add(jsave);jFile.add(jsaveas);jFile.addSeparator();jFile.add(jquite);jEdit.add(jundo);jEdit.addSeparator();jEdit.add(jcut);jEdit.add(jcopy);jEdit.add(jpaste);jEdit.add(jdelete);jEdit.addSeparator();jEdit.add(jfind);jEdit.add(jreplace);jEdit.addSeparator();jEdit.add(jselectall);jEdit.add(jdate);jFormat.add(jword);jFormat.addSeparator();jFormat.add(jfont);jFormat.addSeparator();jFormat.add(jcolor);jHelp.add(jabout);pop.add(pundo);pop.addSeparator();pop.add(pcut);pop.add(pcopy);pop.add(ppaste);pop.add(pdelete);frame.setVisible(true); /*/Event/*/public void frame_windowclose_windowClosing(WindowListener e)this.close();/public void text_mouseClicked(MouseEvent e)if(e.getModifiers()=InputEvent.BUTTON3_MASK)pop.show(Component)e.getSource(),e.getX(),e.getY();public void text_ancestorAdded(AncestorEvent e)this.dirty=false;this.newtext();public void text_caretUpdate(CaretEvent e) this.dirty=true;/this.statubar.setText(this.text.getText();/ File /public void File_open_actionPerformed(ActionEvent e)/打开的事件this.opentext();public void File_new_actionPerformed(ActionEvent e)/新建的事件this.newtext();public void File_save_actionPerformed(ActionEvent e)/保存的事件this.save();public void File_saveas_actionPerformed(ActionEvent e)/另存为this.saveas();public void File_quite_actionPerformed(ActionEvent e)this.close();/ Edit /public void Edit_undo_actionPerformed(ActionEvent e)/撤销this.undo();public void Edit_cut_actionPerformed(ActionEvent e)/剪切this.cut();public void Edit_copy_actionPerformed(ActionEvent e)/复制this.copy();public void Edit_paste_actionPerformed(ActionEvent e)/粘贴this.paste();public void Edit_delete_actionPerformed(ActionEvent e)/删除this.delete();public void Edit_find_actionPerformed(ActionEvent e)/查找int cu=this.text.getCaretPosition();int end=this.text.getText().length();FindDlg fd=new FindDlg(frame,查找,true);fd.show();String str=fd.getFindStr().trim();if(fd.getFlag()this.nextFindStr(str,cu,end);elsethis.upFindStr(str,cu);public void Edit_replace_actionPerformed(ActionEvent e)/替换int cu=this.text.getCaretPosition();int end=this.text.getText().length();ReplaceDlg rd=new ReplaceDlg(frame,替换,true);rd.show();this.replaceStr(rd.findStr().trim(),rd.replaceStr().trim(),cu,end);public void Edit_selectall_actionPerformed(ActionEvent e)/全选this.text.setSelectionStart(0);this.text.setSelectionEnd(this.text.getText().length();public void Edit_timedate_actionPerformed(ActionEvent e)/时间日期SimpleDateFormat sdf = new SimpleDateFormat(yyyy-MM-dd HH:mm:ss); this.text.append( 当前时间:+sdf.format(new Date();/ Format/public void Format_word_actionPerformed(ActionEvent e)/自动换行if(!this.text.getLineWrap()this.text.setLineWrap(true);elsethis.text.setLineWrap(false);public void Format_font_actionPerformed(ActionEvent e)/字体常规,斜体,粗体,粗斜体Font cur=this.text.getFont();int type=Font.BOLD;FontSet fs=new FontSet(frame,字体设置,true);fs.show();if(fs.flag)switch(fs.font2()case 0:type=Font.PLAIN;break;case 1:type=Font.ITALIC;break;case 2:type=Font.BOLD; break;case 3:type=Font.ROMAN_BASELINE;break; default:type=Font.PLAIN;break; Font f=new Font(fs.font1(),type,16);this.text.setFont(f);elsethis.text.setFont(cur);public void Format_color_actionPerformed(ActionEvent e)/ 颜色Color current=this.text.getForeground();this.jColor.setColor(current);this.text.setForeground(this.jColor.showDialog(text,选择颜色,current); / Help /public void Help_about_actionPerformed(ActionEvent e)/关于作者new AboutDlg();/public void pop_undo_actionPerformed(ActionEvent e)/Pop undothis.undo();public void pop_cut_actionPerformed(ActionEvent e)/pop cutthis.cut();public void pop_copy_acionPerformed(ActionEvent e)/pop copythis.copy();public void pop_paste_actionPerformed(ActionEvent e)/pop pastethis.paste();public void pop_delete_actionPerformed(ActionEvent e)/pop deletethis.delete();/*/ coustm function /*/void close() if(this.dirty)Dlgtext Dt=new Dlgtext(frame,提示,true);Dt.show();if(Dt.getCheck()this.save();else frame.dispose();System.exit(0);elseframe.dispose();System.exit(0); void newtext()/新建if(!this.dirty)|(!this.saveas()this.text.setText();this.text.setFocusable(true);this.frame.setTitle(未命名-Author:Jeason);this.statubar.setText(新建文本);else this.saveas();void opentext()/打开/String strFileOpen=;if(!this.dirty)tryif(this.jFileChooser1.APPROVE_OPTION=this.jFileChooser1.showOpenDialog(frame)strFileOpen=this.jFileChooser1.getSelectedFile().getPath();File file=new File(strFileOpen);int flength=(int)file.length();int num=0;FileReader fReader=new FileReader(file);char data=new charflength;while(fReader.ready()num+=fReader.read(data,num,flength-num);fReader.close();this.text.setText(new String(data,0,num);this.filename=strFileOpen;this.frame.setTitle(this.filename);this.statubar.setText(Open File:+this.filename);this.dirty=false;elsereturn ;catch(Exception e)this.statubar.setText(Error Open:+e.getMessage();elsethis.save();boolean save()/保存if(this.dirty)if(this.filename.length()!=0)tryFile saveFile=new File(this.filename);FileWriter fw=new FileWriter(saveFile);fw.write(this.text.getText();fw.close();this.dirty=false;this.statubar.setText(保存文件:+this.filename);return true; catch(Exception e)this.statubar.setText(保存出错: +e.getMessage();return false;elsereturn this.saveas();elsereturn true;boolean saveas()/另存为if(this.jFileChooser1.APPROVE_OPTION=this.jFileChooser1.showSaveDialog(frame)this.filename=this.jFileChooser1.getSelectedFile().getPath();return this.save();else return false;void undo()/undo void cut()/cuttryString str=this.text.getSelectedText();if(str.length()!=0)this.strtext=str;this.text.replaceRange(,this.text.getSelectionStart(),this.text.getSelectionEnd();this.dirty=true;catch(Exception ex)this.statubar.setText(剪切出错:+ex.getMessage();void copy()/copytryString str=this.text.getSelectedText();if(str.length()!=0)this.strtext=str; catch(Exception ex)this.statubar.setText(复制出错!+ex.getMessage();void paste()/pasteif(this.strtext.length()0)this.text.insert(this.strtext,this.text.getCaretPosition();this.dirty=true;void delete()/deletethis.text.replaceRange(,this.text.getSelectionStart(),this.text.getSelectionEnd();this.dirty=true;void nextFindStr(String str,int cur,int end)if(curend)this.statubar.setText(没有找到！);elseint i=this.text.getText().indexOf(str);if(i=0)this.text.setSelectionStart(i);this.text.setSelectionEnd(i+str.length();this.statubar.setText(已经在:+i+ 位置找到!);elsenextFindStr(str,+cur,end); void upFindStr(String str,int cur)if(cur=0)this.text.setSelectionStart(i);this.text.setSelectionEnd(i+str.length();this.statubar.setText(已经在:+i+ 位置找到!);elseupFindStr(str,-cur);void replaceStr(String findStr,String replaceStr,int cur,int end)if(curend)this.statubar.setText(没有找到！);elseint i=this.text.getText().indexOf(findStr);if(i0)this.text.setSelectionStart(i);this.text.setSelectionEnd(i+findStr.length();this.text.replaceRange(replaceStr,this.text.getSelectionStart(),this.text.getSelectionEnd();elsereplaceStr(findStr,replaceStr,+cur,end);/*-* main* *-*/public static void main(String args)Jsb jsb1=new Jsb();/*/ Event class /*/class Jsb_frame_closingAdapter extends java.awt.event.WindowAdapterJsb adaptee;Jsb_frame_closingAdapter(Jsb adaptee)this.adaptee=adaptee;public void windowClosing(WindowListener e)adaptee.frame_windowclose_windowClosing(e);/class Jsb_text_mouseAdapter extends java.awt.event.MouseAdapterJsb adaptee;Jsb_text_mouseAdapter(Jsb adaptee)this.adaptee=adaptee;public void mouseClicked(MouseEvent e)adaptee.text_mouseClicked(e); class Jsb_text_ancestorAdapter implements javax.swing.event.AncestorListenerJsb adaptee;Jsb_text_ancestorAdapter(Jsb adaptee)this.adaptee=adaptee;public void ancestorAdded(AncestorEvent e)adaptee.text_ancestorAdded(e);public void ancestorRemoved(AncestorEvent e)public void ancestorMoved(AncestorEvent e)class Jsb_text_caretAdapter implements javax.swing.event.CaretListenerJsb adaptee;Jsb_text_caretAdapter(Jsb adaptee)this.adaptee=adaptee;public void caretUpdate(CaretEvent e)adaptee.text_caretUpdate(e);/class File_open_actionAdapter