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18.5 An Interactive Query Viewer

493

Listing 18.14 QueryViewer.java (continued)

    panel.setBorder

      (BorderFactory.createTitledBorder("Query Results"));

    return(panel);

  }

  // The panel that contains the textfields, check boxes,

  // and button.

  private JPanel makeControlPanel() {

    JPanel panel = new JPanel(new GridLayout(0, 1));

    panel.add(makeHostPanel());

    panel.add(makeUsernamePanel());

    panel.add(makeQueryPanel());

    panel.add(makeButtonPanel());

    panel.setBorder

      (BorderFactory.createTitledBorder("Query Data"));

    return(panel);

  }

  // The panel that has the host and db name textfield and

  // the driver radio buttons. Placed in control panel.

  private JPanel makeHostPanel() {

    JPanel panel = new JPanel();

    panel.add(new JLabel("Host:"));

    hostField = new JTextField(15);

    panel.add(hostField);

    panel.add(new JLabel("    DB Name:"));

    dbNameField = new JTextField(15);

    panel.add(dbNameField);

    panel.add(new JLabel("    Driver:"));

    ButtonGroup vendorGroup = new ButtonGroup();

    oracleButton = new JRadioButton("Oracle", true);

    vendorGroup.add(oracleButton);

    panel.add(oracleButton);

    sybaseButton = new JRadioButton("Sybase");

    vendorGroup.add(sybaseButton);

    panel.add(sybaseButton);

    return(panel);

  }

  // The panel that has the username and password textfields.

  // Placed in control panel.

  private JPanel makeUsernamePanel() {

    JPanel panel = new JPanel();

    usernameField = new JTextField(10);

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