flightreservation.java

这是JFrame的一些例子(chapter4)。可以参考一下。想要做GUI的人不妨看一看

import java.awt.*;
import java.awt.event.*;

import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;

import dl.*;

public class FlightReservation extends JFrame 
{
  public FlightReservation() {
    super("Flight Reservation Dialog [Custom Layout]");
    setSize(400, 300);

    JPanel p1 = new JPanel();
    p1.setLayout(new BoxLayout(p1, BoxLayout.X_AXIS));

    JPanel p1r = new JPanel();
    p1r.setBorder(new EmptyBorder(10, 10, 10, 10));

    // Variant 1
    p1r.setLayout(new DialogLayout(20, 5));

    p1r.add(new JLabel("Date:"));
    p1r.add(new JTextField());
        
    p1r.add(new JLabel("From:"));
    JComboBox cb1 = new JComboBox();
    cb1.addItem("New York");
    p1r.add(cb1);

    p1r.add(new JLabel("To:"));
    JComboBox cb2 = new JComboBox();
    cb2.addItem("London");
    p1r.add(cb2);

    p1.add(p1r);

    ///////////////
    // Variant 2 //
    ///////////////
    // p11.setLayout(new BoxLayout(p11, BoxLayout.Y_AXIS));
    // 
    // JPanel p12 = new JPanel();
    // p12.setLayout(new BoxLayout(p12, BoxLayout.Y_AXIS));
    //
    // p11.add(new JLabel("Date:"));
    // p12.add(new JTextField());
    //
    // p11.add(new JLabel("From:"));
    // JComboBox cb1 = new JComboBox();
    // cb1.addItem("New York");
    // p12.add(cb1);
    //
    // p11.add(new JLabel("To:"));
    // JComboBox cb2 = new JComboBox();
    // cb2.addItem("London");
    // p12.add(cb2);
    //
    // p1.add(p11);
    // p1.add(Box.createHorizontalStrut(10));
    // p1.add(p12);
       
    ///////////////
    // Variant 3 //
    ///////////////
    // JPanel p11 = new JPanel();
    // p11.setLayout(new GridLayout(3, 1, 5, 5));
    // 
    // JPanel p12 = new JPanel();
    // p12.setLayout(new GridLayout(3, 1, 5, 5));
    //
    // p11.add(new JLabel("Date:"));
    // p12.add(new JTextField());
    // 
    // p11.add(new JLabel("From:"));
    // JComboBox cb1 = new JComboBox();
    // cb1.addItem("New York");
    // p12.add(cb1);
    // 
    // p11.add(new JLabel("To:"));
    // JComboBox cb2 = new JComboBox();
    // cb2.addItem("London");
    // p12.add(cb2);
    // 
    // p1r.setLayout(new BorderLayout());
    // p1r.add(p11, BorderLayout.WEST);
    // p1r.add(p12, BorderLayout.CENTER);
    // p1.add(p1r);

    JPanel p3 = new JPanel();
    p3.setLayout(new BoxLayout(p3, BoxLayout.Y_AXIS));
    p3.setBorder(new TitledBorder(new EtchedBorder(), 
      "Options"));

    ButtonGroup group = new ButtonGroup();
    JRadioButton r1 = new JRadioButton("First class");
    group.add(r1);
    p3.add(r1);

    JRadioButton r2 = new JRadioButton("Business");
    group.add(r2);
    p3.add(r2);

    JRadioButton r3 = new JRadioButton("Coach");
    group.add(r3);
    p3.add(r3);

    p1.add(p3);
      
    getContentPane().add(p1, BorderLayout.NORTH);

    JPanel p2 = new JPanel(new BorderLayout());
    p2.setBorder(new TitledBorder(new EtchedBorder(), 
      "Available Flights"));
    JList list = new JList();
    JScrollPane ps = new JScrollPane(list);
    p2.add(ps, BorderLayout.CENTER);
    getContentPane().add(p2, BorderLayout.CENTER);

    JPanel p4 = new JPanel();
    JPanel p4c = new JPanel();
    p4c.setLayout(new GridLayout(1, 3, 5, 5));
        
    JButton b1 = new JButton("Search");
    p4c.add(b1);
        
    JButton b2 = new JButton("Purchase");
    p4c.add(b2);
        
    JButton b3 = new JButton("Exit");
    p4c.add(b3);

    p4.add(p4c);
    getContentPane().add(p4, BorderLayout.SOUTH);

    WindowListener wndCloser = new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    };
    addWindowListener(wndCloser);
        
    setVisible(true);
  }

  public static void main(String argv[]) {
    new FlightReservation();
  }
}