華北科技學院計算機系綜合性實驗報告華北科技學院計算機系綜合性實驗實 驗 報 告 課程名稱 Java程序設(shè)計 實驗學期 2011 至 2012 學年 第 1 學期學生所在系部 基礎(chǔ)部 年級 2009 專業(yè)班級 計算B092 學生姓名 學號 任課教師 實驗成績 計算機系制Java程序設(shè)計課程綜合性實驗報告開課實驗室： 基礎(chǔ)實驗室 2011 年 12 月 5 日實驗題目簡易寫字板軟件設(shè)計一、 實驗目的i. 通過編寫Java的應用系統(tǒng)綜合實例簡易寫字板軟件，總結(jié)、回顧和實踐面向?qū)ο蟮木幊趟枷胍约熬幊谭椒ǎ⑼ㄟ^編寫程序來掌握Java語言編程技巧，將學習到的知識融會貫通，同時提高調(diào)試程序的能力，養(yǎng)成良好的編程習慣，并增強對程序設(shè)計整體思路的把握。ii. 熟悉在集成開發(fā)環(huán)境下編寫Java程序。二、 設(shè)備與環(huán)境iii. 硬件：多媒體計算機iv. 軟件：Windows 2000以上的操作系統(tǒng)、JDK開發(fā)包、集成開發(fā)環(huán)境三、 實驗內(nèi)容v. 總體要求：程序功能基本完成，用戶界面友好，代碼的可維護性和可擴展性較好，最好包括必要的注釋和相應的文檔。vi. 具體要求：基本的文本錄入，字符修改，刪除，換行，粘貼，復制，剪切等功能，主要包括：2. 菜單欄設(shè)計及功能實現(xiàn)：菜單欄主要包括文件、編輯、格式、幫助等常見菜單。其中文件菜單有新建、打開、保存、另存為、退出等功能；編輯菜單有剪切、復制、粘貼、等功能；格式菜單含有對文字字體、字型、字號及顏色等的設(shè)置功能，根據(jù)情況可在編輯菜單添加查找和查找替換功能。3. 編輯區(qū)設(shè)計：對文本的編輯處理區(qū)。4. 工具欄設(shè)計：可根據(jù)需要增加該項功能。5. 其他功能設(shè)計。四、 實驗結(jié)果及分析1 主界面的設(shè)計與實現(xiàn)a) 整個界面共包括四個部分，包括：標題欄、菜單欄、編輯區(qū)、狀態(tài)欄以及滾動條，如圖1所示。b)6. 圖表 1記事本的整體布局menuBar=new JMenuBar();setJMenuBar(menuBar);menu=new JMenu5;menuItem=new JMenuItemmenu.length;menu0=new JMenu("文件(F)");menu0.setMnemonic(F);menu1=new JMenu("編輯(E)");menu1.setMnemonic(E);menu2=new JMenu("格式(O)");menu2.setMnemonic(O);menu3=new JMenu("查看(V)");menu3.setMnemonic(V);menu4=new JMenu("幫助(H)");menu4.setMnemonic(H);7. 菜單的設(shè)計a) 本程序共設(shè)計四個菜單，分別是文件、編輯、格式、幫助四個菜單的功能， b) 針對記事本的需求，文件菜單欄實現(xiàn)了新建、打開、保存、另存為、退出的功能。如圖二所示。c)8. 圖表 2文件菜單欄menuItem0=new JMenuItem5;menuItem1=new JMenuItem7;menuItem2=new JMenuItem2;menuItem3=new JMenuItem1;menuItem4=new JMenuItem1;menuItem00=new JMenuItem("新建(N)");menuItem00.setMnemonic(N);menuItem01=new JMenuItem("打開(O) .");menuItem01.setMnemonic(O);menuItem02=new JMenuItem("保存(S)");menuItem02.setMnemonic(S);menuItem03=new JMenuItem("另存為(A) .");menuItem03.setMnemonic(A); menuItem04=new JMenuItem("關(guān)閉(C)");menuItem04.setMnemonic(C);a) 編輯欄中實現(xiàn)了常見的剪切、復制、粘貼、查找與替換、全選以及時間/日期的功能。如圖三所示。b)9. 圖表 3編輯菜單欄menuItem10=new JMenuItem("剪切(X)");menuItem10.setMnemonic(X);menuItem11=new JMenuItem("復制(C)");menuItem11.setMnemonic(C);menuItem12=new JMenuItem("粘貼(P)");menuItem12.setMnemonic(P);menuItem13=new JMenuItem("查找(F)");menuItem13.setMnemonic(F);menuItem14=new JMenuItem("替換(R)");menuItem14.setMnemonic(R);menuItem15=new JMenuItem("全選(A)");menuItem15.setMnemonic(A);menuItem16=new JMenuItem("時間/日期(T)");menuItem16.setMnemonic(T);a) 格式欄中實現(xiàn)了自動換行以及字體設(shè)置功能。如圖四所示b)10. 圖表 4格式菜單欄menuItem20=new JCheckBoxMenuItem("自動換行(W)");menuItem20.setMnemonic(T);i. 在字體設(shè)置中實現(xiàn)了字體，字號、字形三個功能，如圖五所示。11.12.13. 圖表 5字體設(shè)置選項JTextArea ta;JScrollPane scr;JMenuBar menuBar;JMenu menu;JMenuItem menuItem, popupMenuItem;JPopupMenu popupMenu;JLabel lblStatus;JComboBox cbFont, cbSize, cbStyle;boolean changed;String curFileName;String schText=new String2;String strFonts;String strSize="8","9","10","11","12","14","16","18","20","22","24","26","28","36","48","72"String strStyle="常規(guī)","粗體","斜體","粗斜體"Container ctn;SchInfo schInfo;GraphicsEnvironment ge;Font defaultFont=new Font("宋體", Font.PLAIN, 12), fonts;public zhaoliyang514()super("無標題 - 記事本");changed=false;curFileName=""lblStatus=new JLabel("就緒");ta=new JTextArea();scr=new JScrollPane(ta);ctn=getContentPane();ge=GraphicsEnvironment.getLocalGraphicsEnvironment();strFonts=ge.getAvailableFontFamilyNames();cbFont=new JComboBox(strFonts);cbFont.setFont(defaultFont);cbFont.setSelectedItem("宋體");cbSize=new JComboBox(strSize);cbSize.setFont(defaultFont);cbSize.setSelectedItem("12");cbStyle=new JComboBox(strStyle);cbFont.setSelectedItem("常規(guī)");cbStyle.setFont(defaultFont);cbFont.addItemListener(new ItemListener()public void itemStateChanged(ItemEvent ie)int size, style;String fontName;fontName=(String)cbFont.getSelectedItem();style=cbStyle.getSelectedIndex();size=Integer.parseInt(String)cbSize.getSelectedItem();Font font=new Font(fontName, style, size);ta.setFont(font););i. 幫助欄實現(xiàn)了關(guān)于記事本的介紹功能，如圖六所示。14.15. 圖表 6幫助欄選項if (ae.getSource()=menuItem40)JOptionPane.showMessageDialog(null,"基礎(chǔ)部，計算B092 趙禮陽","關(guān)于 記事本",JOptionPane.INFORMATION_MESSAGE);16. 編輯區(qū)設(shè)計i. 在編輯區(qū)中通過getContentPane().add(new JScrollPane(text)成功實現(xiàn)了將要輸入的文本成功輸入到編輯區(qū)中，并且這句還增加了文本的滾動條，增加了記事本的實用性。2 文件菜單中各項功能的實現(xiàn)ii. 在設(shè)計記事本中成功完成了文件欄中的新建、打開、保存、另存為、退出的功能。17.18. 圖表 7打開功能public void open()JFileChooser fc=new JFileChooser();if (fc.showOpenDialog(this)=JFileChooser.APPROVE_OPTION)String _curFileName=fc.getSelectedFile().getAbsolutePath();File file=new File(_curFileName);if (file.exists()curFileName=_curFileName;File f=new File(curFileName);setTitle(f.getName()+" - 記事本");changed=false;readFile(file);elseJOptionPane.showMessageDialog(null,file.getAbsolutePath()+"n找不到文件。n請檢查所給的文件名是否正確。n","打開失敗",JOptionPane.ERROR_MESSAGE);19.20. 圖表 8保存及另存為功能public void saveAs()JFileChooser fc=new JFileChooser();fc.setDialogTitle("另存為");if (fc.showSaveDialog(this)=JFileChooser.APPROVE_OPTION)boolean overwrite=false;String _curFileName=fc.getSelectedFile().getAbsolutePath();File file=new File(_curFileName);if (file.exists()int exit;exit=JOptionPane.showConfirmDialog(this,file.getAbsolutePath()+"已存在。n要覆蓋它嗎？ ","另存為",JOptionPane.YES_NO_OPTION);if (exit=JOptionPane.YES_OPTION)overwrite=true;elseoverwrite=true;if (overwrite)changed=false;saveFile(file);curFileName=_curFileName;File f=new File(curFileName);setTitle(f.getName()+" - 記事本");21. 3、格式菜單中各項功能的實現(xiàn)i. 在設(shè)計記事本的格式欄中成功完成了自動換行以及字體的設(shè)置功能。其中在字體中包括了字體、字號、字形三個設(shè)置，達到了對字體設(shè)置的基本要求。22. 4、程序源代碼import java.io.*;import java.awt.*;import java.awt.event.*;import javax.swing.*;import javax.swing.event.*;import java.util.*;class Searcher extends JDialogprivate JLabel Sample = new JLabel();private int curRow, curCol;private JTextField tfS;private JCheckBox chkCaseSensible;private JButton btnOK;private JButton btnCancel;private Searcher dlg;public static SchInfo schInfo;private JTextArea ta;public Searcher(Frame parent, boolean modal, JTextArea _ta)super(parent,modal);schInfo=new SchInfo();ta=_ta;Container ctn=getContentPane();JPanel ctn1=new JPanel();JPanel ctn2=new JPanel();JPanel ctn3=new JPanel();JPanel ctn4=new JPanel();btnOK=new JButton("查找下一個");btnCancel=new JButton("取消");initAll();chkCaseSensible=new JCheckBox("區(qū)分大小寫", false);tfS=new JTextField(10);ctn.setLayout(new FlowLayout();ctn.add(ctn1);ctn.add(ctn2);ctn1.setLayout(new GridLayout(2, 1);ctn1.add(ctn3);ctn1.add(ctn4);ctn3.setLayout(new FlowLayout();ctn4.setLayout(new FlowLayout();ctn3.add(new JLabel("查找內(nèi)容：");ctn3.add(tfS);ctn4.add(chkCaseSensible);ctn2.setLayout(new GridLayout(2, 1);ctn2.add(btnOK);ctn2.add(btnCancel);setTitle("查找");btnOK.addActionListener(new ActionListener()public void actionPerformed(ActionEvent ae)schInfo.str=tfS.getText();schInfo.caseSensible=chkCaseSensible.isSelected();String str=ta.getText();int index;if (schInfo.caseSensible)index=str.indexOf(schInfo.str, ta.getCaretPosition();elseindex=str.toUpperCase().indexOf(schInfo.str.toUpperCase(), ta.getCaretPosition();if (index!=-1)ta.select(index, index+schInfo.str.length();elseJOptionPane.showMessageDialog(null,"找不到""+schInfo.str+""","記事本",JOptionPane.INFORMATION_MESSAGE););btnCancel.addActionListener(new ActionListener()public void actionPerformed(ActionEvent ae)schInfo.str=""schInfo.caseSensible=false;setVisible(false););setVisible(true);private void initAll()setSize(400,140);setLocation(350,150);addWindowListener(new WindowAdapter()public void windowClosing(java.awt.event.WindowEvent e)setVisible (false););class SchInfopublic String str;public boolean caseSensible;class Replacer extends JDialogprivate JLabel Sample = new JLabel();private int curRow, curCol;private JTextField tfS, tfR;private JCheckBox chkCaseSensible;private JButton btnOK, btnReplace;private JButton btnCancel;private Replacer dlg;public static RplInfo schInfo;private JTextArea ta;public Replacer(Frame parent, boolean modal, JTextArea _ta)super(parent,modal);schInfo=new RplInfo();ta=_ta;Container ctn=getContentPane();JPanel ctn1=new JPanel();JPanel ctn2=new JPanel();JPanel ctn3=new JPanel();JPanel ctn4=new JPanel();JPanel ctn5=new JPanel();btnOK=new JButton("查找下一個");btnReplace=new JButton("替換");btnCancel=new JButton("取消");initAll();chkCaseSensible=new JCheckBox("區(qū)分大小寫", false);tfS=new JTextField(10);tfR=new JTextField(10);ctn.setLayout(new FlowLayout();ctn.add(ctn1);ctn.add(ctn2);ctn1.setLayout(new GridLayout(3,1);ctn1.add(ctn3);ctn1.add(ctn4);ctn1.add(ctn5);ctn3.setLayout(new FlowLayout();ctn4.setLayout(new FlowLayout();ctn5.setLayout(new FlowLayout();ctn3.add(new JLabel("查找內(nèi)容：");ctn3.add(tfS);ctn4.add(new JLabel("替換為：");ctn4.add(tfR);ctn5.add(chkCaseSensible);ctn2.setLayout(new GridLayout(3, 1);ctn2.add(btnOK);ctn2.add(btnReplace);ctn2.add(btnCancel);setTitle("替換");btnOK.addActionListener(new ActionListener()public void actionPerformed(ActionEvent ae)schInfo.str=tfS.getText();schInfo.caseSensible=chkCaseSensible.isSelected();String str=ta.getText();int index;if (schInfo.caseSensible)index=str.indexOf(schInfo.str, ta.getCaretPosition();elseindex=str.toUpperCase().indexOf(schInfo.str.toUpperCase(), ta.getCaretPosition();if (index!=-1)ta.select(index, index+schInfo.str.length();elseJOptionPane.showMessageDialog(null,"找不到""+schInfo.str+""","記事本",JOptionPane.INFORMATION_MESSAGE););btnReplace.addActionListener(new ActionListener()public void actionPerformed(ActionEvent ae)String str=ta.getSelectedText();int index;schInfo.str=tfS.getText();if (str!=null && str.equals(tfS.getText()index=ta.getCaretPosition()-tfS.getText().length();elseschInfo.caseSensible=chkCaseSensible.isSelected();str=ta.getText();if (schInfo.caseSensible)index=str.indexOf(schInfo.str, ta.getCaretPosition();elseindex=str.toUpperCase().indexOf(schInfo.str.toUpperCase(), ta.getCaretPosition();str=ta.getText();if (index!=-1)str.replaceFirst(tfS.getText(), tfR.getText();String strTemp=str.substring(0, index)+tfR.getText()+str.substring(index+tfS.getText().length(), str.length();str=strTemp;ta.setText(str);ta.setCaretPosition(index+tfR.getText().length();elseJOptionPane.showMessageDialog(null,"找不到""+schInfo.str+""","記事本",JOptionPane.INFORMATION_MESSAGE););btnCancel.addActionListener(new ActionListener()public void actionPerformed(ActionEvent ae)schInfo.str=""schInfo.caseSensible=false;setVisible(false););setVisible(true);private void initAll()setSize(400,140);setLocation(350,150);addWindowListener(new WindowAdapter()public void windowClosing(java.awt.event.WindowEvent e)setVisible (false););class RplInfo extends SchInfopublic String strR;public class zhaoliyang514 extends JFrame implements ActionListenerJTextArea ta;JScrollPane scr;JMenuBar menuBar;JMenu menu;JMenuItem menuItem, popupMenuItem;JPopupMenu popupMenu;JLabel lblStatus;JComboBox cbFont, cbSize, cbStyle;boolean changed;String curFileName;String schText=new String2;String strFonts;String strSize="8","9","10","11","12","14","16","18","20","22","24","26","28","36","48","72"String strStyle="常規(guī)","粗體","斜體","粗斜體"Container ctn;SchInfo schInfo;GraphicsEnvironment ge;Font defaultFont=new Font("宋體", Font.PLAIN, 12), fonts;public zhaoliyang514()super("無標題 - 記事本");changed=false;curFileName=""lblStatus=new JLabel("就緒");ta=new JTextArea();scr=new JScrollPane(ta);ctn=getContentPane();ge=GraphicsEnvironment.getLocalGraphicsEnvironment();strFonts=ge.getAvailableFontFamilyNames();cbFont=new JComboBox(strFonts);cbFont.setFont(defaultFont);cbFont.setSelectedItem("宋體");cbSize=new JComboBox(strSize);cbSize.setFont(defaultFont);cbSize.setSelectedItem("12");cbStyle=new JComboBox(strStyle);cbFont.setSelectedItem("常規(guī)");cbStyle.setFont(defaultFont);cbFont.addItemListener(new ItemListener()public void itemStateChanged(ItemEvent ie)int size, style;String fontName;fontName=(String)cbFont.getSelectedItem();style=cbStyle.getSelectedIndex();size=Integer.parseInt(String)cbSize.getSelectedItem();Font font=new Font(fontName, style, size);ta.setFont(font););cbSize.addItemListener(new ItemListener()public void itemStateChanged(ItemEvent ie)int size, style;String fontName;fontName=(String)cbFont.getSelectedItem();style=cbStyle.getSelectedIndex();size=Integer.parseInt(String)cbSize.getSelectedItem();Font font=new Font(fontName, style, size);ta.setFont(font););cbStyle.addItemListener(new ItemListener()public void itemStateChanged(ItemEvent ie)int size, style;String fontName;fontName=(String)cbFont.getSelectedItem();style=cbStyle.getSelectedIndex();size=Integer.parseInt(String)cbSize.getSelectedItem();Font font=new Font(fontName, style, size);ta.setFont(font););cbFont.setToolTipText("在這里設(shè)置字體");cbSize.setToolTipText("在這里設(shè)置字體大小");cbStyle.setToolTipText("在這里設(shè)置字體風格");JPanel panel=new JPanel();panel.add(cbFont);panel.add(cbSize);panel.add(cbStyle);ctn.setLayout(new BorderLayout();ctn.add(panel, BorderLayout.NORTH);ctn.add(scr, BorderLayout.CENTER);ctn.add(lblStatus, BorderLayout.SOUTH);showMenu();schText0=new String("");schText1=new String("");lblStatus.setFont(defaultFont);ta.setFont(defaultFont);ta.getDocument().addDocumentListener(new DocumentListener()public void changedUpdate(DocumentEvent de)lblStatus.setText("行數(shù)："+ta.getLineCount();changed=true;public void insertUpdate(DocumentEvent de)lblStatus.setText("行數(shù)："+ta.getLineCount();changed=true;public void removeUpdate(DocumentEvent de)lblStatus.setText("行數(shù)："+ta.getLineCount();changed=true;);addWindowListener(new WindowAdapter()public void windowClosing(WindowEvent we)closeAndSave();System.exit(0););ta.addMouseListener(new MouseAdapter()public void mouseReleased(MouseEvent me)if (me.isPopupTrigger()popupMenu.show(zhaoliyang514.this, me.getX()+10, me.getY()+80););public void showMenu()menuBar=new JMenuBar();setJMenuBar(menuBar);menu=new JMenu5;menuItem=new JMenuItemmenu.length;menu0=new JMenu("文件(F)");menu0.setMnemonic(F);menu1=new JMenu("編輯(E)");menu1.setMnemonic(E);menu2=new JMenu("格式(O)");menu2.setMnemonic(O);menu3=new JMenu("查看(V)");menu3.setMnemonic(V);menu4=new JMenu("幫助(H)");menu4.setMnemonic(H);menuItem0=new JMenuItem5;menuItem1=new JMenuItem7;menuItem2=new JMenuItem2;menuItem3=new JMenuItem1;menuItem4=new JMenuItem1;menuItem00=new JMenuItem("新建(N)");menuItem00.setMnemonic(N);menuItem01=new JMenuItem("打開(O) .");menuItem01.setMnemonic(O);menuItem02=new JMenuItem("保存(S)");menuItem02.setMnemonic(S);menuItem03=new JMenuItem("另存為(A) .");menuItem03.setMnemonic(A);menuItem04=new JMenuItem("關(guān)閉(C)");menuItem04.setMnemonic(C);menuItem10=new JMenuItem("剪切(X)");menuItem10.setMnemonic(X);menuItem11=new JMenuItem("復制(C)");menuItem11.setMnemonic(C);menuItem12=new JMenuItem("粘貼(P)");menuItem12.setMnemonic(P);menuItem13=new JMenuItem("查找(F)");menuItem13.setMnemonic(F);menuItem14=new JMenuItem("替換(R)");menuItem14.setMnemonic(R);menuItem15=new JMenuItem("全選(A)");menuItem15.setMnemonic(A);menuItem16=new JMenuItem("時間/日期(T)");menuItem16.setMnemonic(T);menuItem20=new JCheckBoxMenuItem("自動換行(W)");menuItem20.setMnemonic(T);menuItem21=new JMenuItem("字體.");menuItem21.setEnabled(false);menuItem30=new JCheckBoxMenuItem("狀態(tài)欄(S)", true);menuItem30.setMnemonic(S);menuItem40=new JMenuItem("關(guān)于(A) .");menuItem40.setMnemonic(S);popupMenuItem=new JMenuItem4;popupMenuItem0=new JMenuItem("剪切(X)");popupMenuItem0.setMnemonic(X);popupMenuItem1=new JMenuItem("復制(C)");popupMenuItem1.setMnemonic(C);popupMenuItem2=new JMenuItem("粘貼(P)");popupMenuItem2.setMnemonic(P);popupMenuItem3=new JMenuItem("全選(A)");popupMenuItem3.setMnemonic(A);popupMenu=new JPopupMenu();for(int i=0; i<menu.length; i+)menuBar.add(menui);menui.setFont(defaultFont);for (int j=0; j<menuItemi.length; j+)menui.add(menuItemij);menuItemij.addActionListener(this);menuItemij.setFont(defaultFont);if (i=0 && j=3 | i=1 && j=2 | i=1 && j=4)menui.addSeparator();for (int i=0; i<popupMenuItem.length; i+)popupMenu.add(popupMenuItemi);popupMenuItemi.addActionListener(this);popupMenuItemi.setFont(defaultFont);if (i=2)popupMenu.addSeparator();public void readFile(File file)ta.setText("");tryBufferedReader in=new BufferedReader(new FileReader(file);String read;char readBuf=new char20480;int n=0;while (true)n=in.read(readBuf, 0, 20480);if (n=-1)break;read=new String(readBuf, 0, n);ta.append(read);in.close();ta.setCaretPosition(0);catch (IOException ioe)JOptionPane.showMessageDialog(null,"I/O 錯誤："+ioe+"。n","打開失敗",JOptionPane.ERROR_MESSAGE);public void saveFile(File file)tryFileWriter fw_out=new FileWriter(file);PrintWriter out=new PrintWriter(new BufferedWriter(fw_out);String outData=ta.getText();String outLine;outLine=outData.spli