Problem with closing n reloading an applet

[smyle khanna]

i am facing a problem with closing the applet n loading the next applet in the same window,[the program is not yet complete]
at present all get loded in the same window w/o the previous content still present.even the background color doesnt work
the WindowListener method doesnt work ?
plz tell me which method should i use to set these applets workin

  import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Calendar;
import java.lang.*;
public class StartupApplet extends JApplet implements ActionListener
{
static JPanel panel;
static JButton java,vb,str;
/*private boolean clickjava=true;
private boolean clickvb=true;
private boolean clickstr=true;*/
//static Thread datimeThread;
//static Date date;
//static GregorianCalendar calendar;
String strTime,strDate,strStatus;
JLabel online;
JLabel select;

public void init()
{
panel = new JPanel();
getContentPane().add(panel);
panel.setLayout(null);
getContentPane().setBackground(Color.blue);

online = new JLabel("Welcome to the Online Test!");
panel.add(online);
online.setBounds(10,20,300,20);
select = new JLabel("Select the Test you want to take up-");
panel.add(select);
select.setBounds(60,95,300,20);
    java = new JButton("JAVA");
panel.add(java);
java.setBounds(50,140,90,20);
StartupApplet S1=new StartupApplet();
java.addActionListener(S1);
vb = new JButton("VISUAL BASIC");
panel.add(vb);
vb.setBounds(150,140,120,20);
StartupApplet S2=new StartupApplet();
vb.addActionListener(S2);

}
public void display()
{
System.out.println("the display method");
int minutes=30;
GregorianCalendar calendar=new GregorianCalendar();
calendar.setTime(new Date());
for(minutes=30;minutes==0;minutes--)
{
   if(minutes==0)
{
System.out.println("time up");
break;
}
else {
for(int seconds=60;seconds==0;seconds--);
{
strTime=String.valueOf(minutes);
strStatus="Time remaining"+strTime+""+"mins";
}
}
/*calendar.setGregorianCalendar();
strTime=String.valueOf(minutes);
strStatus="Remaining time:"+strTime+" "+"mins";*/
}
}
public void closing()
{
System.out.println("closing:window");
/*addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
});*/
WindowListener l = new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
Window w=e.getWindow();
w.setVisible(false);
w.dispose();
//e.getWindow().setVisible(false);
//e.getWindow().dispose();
//System.exit(0);
//exitForm(0);
}
};
System.out.println("window method complete");
}
public void actionPerformed(ActionEvent e)
{
Object obj=e.getSource();
closing();
if(obj.equals(java))
{
JLabel det = new JLabel("This is a objective test with 30 questions.");
JLabel det1=new JLabel("The time limit for the test is 30 minutes");
FlowLayout flow=new FlowLayout(FlowLayout.LEFT,10,20);
panel.setLayout(flow);
panel.add(det);
panel.add(det1);
JButton str=new JButton("Start Test");
panel.add(str);
str.setBounds(20,150,50,20);
StartupApplet S3=new StartupApplet();
            str.addActionListener(S3);

           }
if(obj.equals(vb))
{

JLabel det = new JLabel("This is a objective test with 30 questions.");
JLabel det1=new JLabel("The time limit for the test is 30 minutes");
FlowLayout flow=new FlowLayout(FlowLayout.LEFT,10,20);
panel.setLayout(flow);
panel.add(det);
panel.add(det1);
JButton str=new JButton("Start Test");
panel.add(str);
str.setBounds(20,150,50,20);
StartupApplet S4=new StartupApplet();
            str.addActionListener(S4);
          }
if(obj.equals(str))
{

System.out.println("the test begins");
display();
System.out.println("the timer starts");

}
}
}

[Joe Ess]

Originally posted by smyle khanna:
i am facing a problem with closing the applet n loading the next applet in the same window

You are trying to replace the applet that was loaded in a page with a different applet? I don't think that's possible. You can, however, use a CardLayout to make different "pages" and use the CardLayout.show() method to switch between them.