谁能抵万寻书O Cena_UT
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高手帮忙啊,补齐这几段代码@@!@ import javax.swing.*; import java.io.*; import java.awt.*; import java.awt.event.*; public class CardManager3 extends JFrame implements ActionListener {      JLabel nameLabel, sexLabel, titleLabel, unitLabel;      JLabel addressLabel, telLabel1, telLabel2, mobileLabel, faxLabel, emailLabel;      JTextField nameText, unitText, addressText, telText1, telText2, mobileText, faxText, emailText;      JRadioButton sexBtn1, sexBtn2;      JComboBox titleBx;      String title[] = {"无", "总裁", "总经理", "经理", "主任", "处长", "院长", "校长", "科长", "教授", "讲师"};      JButton addBtn, lastBtn, perBtn;      JButton requestBtn;      JPanel centerPanel, sPanel;      GridBagLayout layout;      GridBagConstraints constraints;           RandomAccessFile file;           public CardManager3() {          super("名片管理");          try {              file = new RandomAccessFile("card.txt", "rw");          } catch (IOException e) {              System.err.println(e.getMessage());              System.exit(0);          }                   Container c = getContentPane();          c.setLayout(new BorderLayout());                   layout = new GridBagLayout();          centerPanel = new JPanel(layout);          sPanel = new JPanel();          setComponent();          c.add(centerPanel, BorderLayout.CENTER);          c.add(sPanel, BorderLayout.SOUTH);                   pack();          setVisible(true);      }           public void setComponent() {          constraints = new GridBagConstraints();//创建网格包限制对象          nameLabel = new JLabel("姓名");          nameText = new JTextField(10);
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