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上传时间: 2010-10-22
详细说明： import java.util.*; import java.awt.event.*; import javax.swing.*; import java.awt.*; import java.io.*; public class QuizCardBuilder{ private JTextArea question; private JTextArea answer; private ArrayList cardList; private JFrame frame; public static void main(String[] args){ QuizCardBuilder builder=new QuizCardBuilder(); builder.go(); } public void go(){ frame=new JFrame("Quiz Card Build"); JPanel mainPanel=new JPanel(); Font bigFont=new Font(&quo t;sanserif",Font.BOLD,24); question=new JTextArea(6,20); question.setLineWrap(true); question.setWrapStyleWord(true); question.setFont(bigFont); JScrollPane qScroller=new JScrollPane(question); qScroller.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS); qScroller.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER); answer=new JTextArea(6,20); answer.setLineWrap(true); answer.setWrapStyleWord(true); answer.setFont(bigFont); JScrollPane aScroller=new JScrollPane(answer); qScroller.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS); qScroller.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER); JButton nextButton=new JButton("Next Card"); cardList=new ArrayList(); JLabel qLabel=new JLabel("Question:"); JLabel aLabel=new JLabel("Answer"); mainPanel.add(qLabel); mainPanel.add(qScroller); mainPanel.add(aLabel); mainPanel.add(aScroller); mainPanel.add(nextButton); nextButton.addActionListener(new NextCardListener()); JMenuBar menuBar=new JMenuBar(); JMenu fileMenu=new JMenu("File"); JMenuItem newMenuItem=new JMenuItem("new"); JMenuItem saveMenuItem=new JMenuItem("save"); newMenuItem.addActionListener(new NewMenuListener()); saveMenuItem.addActionListener(new SaveMenuListener()); fileMenu.add(newMenuItem); fileMenu.add(saveMenuItem); menuBar.add(fileMenu); frame.setJMenuBar(menuBar); frame.getContentPane().add(BorderLayout.CENTER,mainPanel); frame.setSize(500,600); frame.setVisible(true); } public class NextCardListener implements ActionListener{ public void actionPerformed(ActionEvent ev){ QuizCard card=new QuizCard(question.getText(),answer.getText()); cardList.add(card); clearCard(); } } public class SaveMenuListener implements ActionListener{ public void actionPerformed(ActionEvent ev){ QuizCard card=new QuizCard(question.getText(),answer.getText()); cardList.add(card); JFileChooser fileSave=new JFileChooser(); fileSave.showSaveDialog(frame); saveFile(fileSave.getSelectedFile()); } } public class NewMenuListener implements ActionListener{ public void actionPerformed(ActionEvent ev){ cardList.clear(); clearCard(); } } private void clearCard(){ question.setText(" "); answer.setText(" "); question.requestFocus(); } private void saveFile(File file){ try{ BufferedWriter writer=new BufferedWriter(new FileWriter(file)); for(QuizCard card:cardList){ writer.write(card.getQuestion()+"/"); writer.write(card.getAnswer()+"\n"); } writer.close(); }catch(IOException ex){ System.out.println("couldn't write the cardList out"); ex.printStackTrace(); } } } public class QuizCard { String question; String answer; public QuizCard(String q,String a){ question=q; question=a; } public String getQuestion(){ return question; } public String getAnswer(){ return answer; } } ...展开收缩
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