问题描述
我是初学者，编了一个记事本后，老师要求在里面加入幻灯片功能。要求如下：记事本中添加一个新菜单：名称为图片显示。用户可以选择放在磁盘目录中的图片文件，并显示。用户可以选择存放图片的目录，后记事本可以自动播放目录中的图片。以下是我记事本的一些代码，求助各位的帮助，万分感谢！importjava.awt.*;importjava.awt.event.*;importjava.io.*;importjava.util.Date;importjava.util.Locale;importjava.text.*;importjavax.swing.*;importjavax.swing.text.*;importjavax.swing.undo.*;importjavax.swing.event.*;importjavax.swing.KeyStroke;importjava.awt.event.InputEvent;importjava.applet.*;importjava.awt.*;importjava.awt.event.*;publicclassmywordextendsJFrame{finalUndoManagerundo=newUndoManager();publicfinalstaticintCORRECT=0;publicfinalstaticintMISSED_ONE_LETTER=1;publicfinalstaticintADDED_ONE_LETTER=2;publicfinalstaticintEXCHANGED_ADJACEMENT_LETTERS=3;publicfinalstaticintUNDEFINED_ERROR=4;privateintwidth,height,status,save_status;privateContainercontainer;privateJTextAreatextarea;//文本区privateJMenuBarmenubar;//菜单栏privateJToolBartoolbar;//工具栏privateJFrameframe;privateintfangxiangStatus=0;privateStringfileDictionary,myfileName;privateJScrollPanescroll;privateJPopupMenupopup;privateJMenuwenjian,bianji,geshi,bangzhu,tupian;privateStringcopy,searchWord;privatestaticintstart=0;privatestaticinthuanhang_count=0;privateJMenuItemwenjian_item[],bianji_item[],geshi_item,bangzhu_item[],tupian_item[],popup_item[],huanhang_item;privateJButtonbuttons[];//工具栏上的按键publicmyword(){super("CC'sNotepad");container=getContentPane();container.setLayout(newBorderLayout());actionEventHandleractionHandler=newactionEventHandler();frame=newJFrame();width=750;height=500;status=0;save_status=0;menubar=newJMenuBar();//菜单popup=newJPopupMenu();//快捷toolbar=newJToolBar();//工具栏container.add(menubar,BorderLayout.NORTH);add(toolbar,BorderLayout.SOUTH);//添加工具栏addWindowListener(newWindowAdapter(){publicvoidwindowClosing(WindowEventevent){if(save_status==0){intcheck=JOptionPane.showConfirmDialog(null,"文件的文字已经改变。想保存文件吗？","警告",JOptionPane.YES_NO_CANCEL_OPTION);if(check==0){saveFile(status);}if(check==1){System.exit(0);}if(check==2){dispose();}}}});buttons=newJButton[]{newJButton("",newImageIcon("D:/new.gif")),newJButton("",newImageIcon("D:/open.gif")),newJButton("",newImageIcon("D:/save.gif")),newJButton("",newImageIcon("D:/cut.gif")),newJButton("",newImageIcon("D:/copy.gif")),newJButton("",newImageIcon("D:/paste.gif")),newJButton("",newImageIcon("D:/replace.png")),};for(inti=0;i<buttons.length;i++){toolbar.add(buttons[i]);buttons[i].addActionListener(actionHandler);}bianji=newJMenu("编辑(E)");//编辑菜单栏bianji.setMnemonic('E');bianji.setFont(newFont("Monospaced",Font.PLAIN,12));charbianjis[]={'U','T','C','P','L','F','N','R','G','A','D'};characcelerator[]={'Z','X','C','V'};StringbianjiOperation[]={"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)...","全选(A)","时间/日期(D)"};bianji_item=newJMenuItem[bianjiOperation.length];for(intcount=0;count<bianjiOperation.length;count++){bianji_item[count]=newJMenuItem(bianjiOperation[count]);bianji_item[count].setBackground(Color.white);bianji_item[count].setFont(newFont("Monospaced",Font.PLAIN,12));bianji_item[count].setMnemonic(bianjis[count]);bianji.add(bianji_item[count]);if(count<accelerator.length)bianji_item[count].setAccelerator(KeyStroke.getKeyStroke(accelerator[count],InputEvent.CTRL_DOWN_MASK));bianji_item[count].addActionListener(actionHandler);if(count==0||count==4||count==8)bianji.addSeparator();}menubar.add(bianji);bianji_item[4].setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_DELETE,0));bianji_item[5].setAccelerator(KeyStroke.getKeyStroke('F',InputEvent.CTRL_DOWN_MASK));bianji_item[6].setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F3,0));bianji_item[7].setAccelerator(KeyStroke.getKeyStroke('H',InputEvent.CTRL_DOWN_MASK));bianji_item[8].setAccelerator(KeyStroke.getKeyStroke('A',InputEvent.CTRL_DOWN_MASK));bianji_item[9].setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F5,0));geshi=newJMenu("格式(O)");//格式菜单栏geshi.setMnemonic('O');geshi.setFont(newFont("Monospaced",Font.PLAIN,12));huanhang_item=newJMenuItem("自动换行(W)");huanhang_item.setMnemonic('W');huanhang_item.setBackground(Color.white);huanhang_item.addActionListener(actionHandler);huanhang_item.setFont(newFont("Monospaced",Font.PLAIN,12));geshi_item=newJMenuItem("字体(F)...");geshi_item.setBackground(Color.white);geshi_item.setFont(newFont("Monospaced",Font.PLAIN,12));geshi_item.setMnemonic('F');geshi_item.addActionListener(actionHandler);geshi.add(huanhang_item);geshi.add(geshi_item);menubar.add(geshi);bangzhu=newJMenu("帮助(H)");//帮助菜单栏bangzhu.setMnemonic('H');bangzhu.setFont(newFont("Monospaced",Font.PLAIN,12));StringbangzhuOperation[]={"帮助主题(H)","关于记事本(A)"};charbangzhus[]={'H','A'};bangzhu_item=newJMenuItem[bangzhuOperation.length];for(intcount=0;count<bangzhuOperation.length;count++){bangzhu_item[count]=newJMenuItem(bangzhuOperation[count]);bangzhu_item[count].setBackground(Color.white);bangzhu_item[count].setFont(newFont("Monospaced",Font.PLAIN,12));bangzhu_item[count].setMnemonic(bangzhus[count]);bangzhu.add(bangzhu_item[count]);bangzhu_item[count].addActionListener(actionHandler);if(count==0)bangzhu.addSeparator();}menubar.add(bangzhu);tupian=newJMenu("显示图片（P）");//帮助菜单栏tupian.setMnemonic('P');tupian.setFont(newFont("Monospaced",Font.PLAIN,12));StringtupianOperation[]={"图片显示（X）"};chartupians[]={'X'};tupian_item=newJMenuItem[tupianOperation.length];for(intcount=0;count<tupianOperation.length;count++){tupian_item[count]=newJMenuItem(tupianOperation[count]);tupian_item[count].setBackground(Color.white);tupian_item[count].setFont(newFont("Monospaced",Font.PLAIN,12));tupian_item[count].setMnemonic(tupians[count]);tupian.add(tupian_item[count]);tupian_item[count].addActionListener(actionHandler);}menubar.add(tupian);StringpopupOperation[]={"撤销(U)","剪贴(T)","复制(C)","粘贴(P)","删除(D)","全选(A)"};charpopupMnemonic[]={'U','T','C','P','D','A'};popup_item=newJMenuItem[popupOperation.length];for(intcount=0;count<popupOperation.length;count++){popup_item[count]=newJMenuItem(popupOperation[count]);popup_item[count].setBackground(Color.white);popup_item[count].setFont(newFont("Monospaced",Font.PLAIN,12));popup_item[count].setMnemonic(popupMnemonic[count]);popup_item[count].addActionListener(actionHandler);if(count==1||count==5)popup.addSeparator();popup.add(popup_item[count]);}textarea=newJTextArea();textarea.setWrapStyleWord(true);textarea.setFont(newFont("Monospaced",Font.PLAIN,14));textarea.addMouseListener(newMouseAdapter(){publicvoidmousePressed(MouseEventevent){if(event.getButton()==event.BUTTON3)checkForTriggerEvent(event);}publicvoidmouseReleased(MouseEventevent){if(event.getButton()==event.BUTTON3)checkForTriggerEvent(event);}privatevoidcheckForTriggerEvent(MouseEventevent){if(event.isPopupTrigger())popup.show(textarea,event.getX(),event.getY());}});textarea.addKeyListener(newKeyListener(){publicvoidkeyTyped(KeyEvente){if(status==1)status=0;}publicvoidkeyPressed(KeyEvente){}publicvoidkeyReleased(KeyEvente){}});Documentdoc=textarea.getDocument();doc.addUndoableEditListener(newUndoableEditListener(){publicvoidundoableEditHappened(UndoableEditEventevt){undo.addEdit(evt.getEdit());}});scroll=newJScrollPane(textarea);scroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);scroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);scroll.setBounds(0,20,width,height-53);scroll.setVisible(true);container.add(scroll,BorderLayout.CENTER);setSize(width+5,height);setVisible(true);}//事件监听privateclassactionEventHandlerimplementsActionListener{publicvoidactionPerformed(ActionEventevent){if(event.getSource()==tupian_item[0])open_picture()}privatevoidmysetTitle(Stringtmp){this.setTitle(tmp);}publicvoidopen_picture(){FileDialogs=newFileDialog(frame);s.setMode(FileDialog.LOAD);s.setVisible(true);fileDictionary=s.getDirectory();myfileName=s.getFile();status=1;if(myfileName==null||myfileName.equals(""))JOptionPane.showMessageDialog(this,"您没有选择任何文件！","出错信息",JOptionPane.ERROR_MESSAGE);else{//这里该怎么写}catch(IOExceptionioexception){JOptionPane.showMessageDialog(this,"文件打开出错","警告",JOptionPane.ERROR_MESSAGE);}}}}publicstaticvoidmain(Stringargs[]){mywordapplication=newmyword();application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);}}
解决方案
解决方案二：
该回复于2009-07-17 09:26:42被版主删除