package traffic;import java.awt.*;import java.awt.event.*;import javax.swing.*;/** * <p>Title: </p> * <p>Description: </p> * <p>Copyright: Copyright (c) 2003</p> * <p>Company: </p> * @author not attributable * @version 1.0 */public class welcomeFrame extends JFrame {  JPanel contentPane;  JLabel jLabel1 = new JLabel();  JLabel jLabel2 = new JLabel();  JLabel jLabel3 = new JLabel();  JLabel jLabel4 = new JLabel();  //Construct the frame  public welcomeFrame() {    enableEvents(AWTEvent.WINDOW_EVENT_MASK);    try {      jbInit();    }    catch(Exception e) {      e.printStackTrace();    }  }  //Component initialization  private void jbInit() throws Exception  {    contentPane = (JPanel) this.getContentPane();    contentPane.setLayout(null);    this.setSize(new Dimension(400, 300));    this.setTitle("歡迎訪問");    jLabel1.setFont(new java.awt.Font("Serif", 1, 30));    jLabel1.setForeground(Color.blue);    jLabel1.setHorizontalAlignment(SwingConstants.CENTER);    jLabel1.setText("歡迎使用公交查詢系統(tǒng)");    jLabel1.setBounds(new Rectangle(0, 20, 400, 40));    jLabel2.setFont(new java.awt.Font("Serif", 1, 18));    jLabel2.setHorizontalAlignment(SwingConstants.CENTER);    jLabel2.setText("版權(quán)：全網(wǎng)中心");    jLabel2.setBounds(new Rectangle(0, 140, 400, 31));    jLabel3.setFont(new java.awt.Font("Serif", 1, 15));    jLabel3.setHorizontalAlignment(SwingConstants.CENTER);    jLabel3.setText("開發(fā)者：石正貴");    jLabel3.setBounds(new Rectangle(0, 190, 400, 29));    jLabel4.setFont(new java.awt.Font("Serif", 0, 11));    jLabel4.setHorizontalAlignment(SwingConstants.CENTER);    jLabel4.setText("2003年9月8號(hào)");    jLabel4.setBounds(new Rectangle(0, 240, 400, 21));    contentPane.add(jLabel1, null);    contentPane.add(jLabel2, null);    contentPane.add(jLabel3, null);    contentPane.add(jLabel4, null);   timeevent = new Timer(delay, taskPerformer);   timeevent.start();  }//Overridden so we can exit when window is closed    protected void processWindowEvent(WindowEvent e) {      super.processWindowEvent(e);      if (e.getID() == WindowEvent.WINDOW_CLOSING) {        System.exit(0);      }    }    int delay = 1000*5;    ActionListener taskPerformer = new ActionListener() {      public void actionPerformed(ActionEvent evt) {        eventFrame eventFrame1 = new eventFrame();        eventFrame1.setSize(new Dimension(400, 300));        //this.        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();        Dimension frameSize = eventFrame1.getSize();        eventFrame1.setState(eventFrame1.NORMAL);        eventFrame1.setLocation( (screenSize.width - frameSize.width) / 2,(screenSize.height - frameSize.height) / 2);        eventFrame1.show();      }    };    private Timer timeevent;}