problem in adding the panel to an applet

[smyle khanna]

hi,
i have been tryin to add the panel to an applet n its givin certain runtime exceptions,n also i have addded a counter 2 count the time which isnt workin.
the runtime exceptions are:
java.lang.ClassCastException:StartupApplet1
at sun.applet.AppletPanel.createApplet(AppletPanel.java.586)
at sun.applet.AppletPanel.runLoader(AppletPanel.java.515)
at sun.applet.AppletPanel.run(AppletPanel.java.293)
at java.lang.Thread.run(Thread.java.:484)
the program code is given below,[not completed]
plz tell me as 2 wht i have 2 use 2 make it work,
thanks in advance,
Smyle

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 StartupApplet1 implements ActionListener
{
static Panel panel;
static Button java= new Button("JAVA");
static Button vb= new Button("VISUAL BASIC");
static Button str=new Button("Start Test");
String strTime,strDate,strStatus;
static Label online=new Label("Welcome to the Online Test!");
static Label select= new Label("Select the Test you want to take up-");
static Label det= new Label("This is a objective test with 30 questions.");
static Label det1=new Label("The time limit for the test is 30 minutes");

public void init()
{
panel = new Panel();
add.(panel);
panel.setLayout(null);
panel.setBackground(Color.blue);
panel.add(online);
online.setBounds(10,20,300,20);
panel.add(select);
select.setBounds(60,75,300,20);
panel.add(java);
java.setBounds(50,140,90,20);
StartupApplet1 S1=new StartupApplet1();
java.addActionListener(S1);
panel.add(vb);
vb.setBounds(150,140,120,20);
StartupApplet1 S2=new StartupApplet1();
vb.addActionListener(S2);

}
public void display()
{
System.out.println("the display method");
int minutes=0;
for(minutes=0; minutes>=30; minutes++)
{
System.out.println("enter the 1st for loop");
for(int seconds=0; seconds>=60; seconds++)
{
System.out.println("seconds counting:");
}
strTime=String.valueOf(minutes);
strStatus="Time remaining"+strTime+""+"mins";
System.out.println("Time remaining"+strTime+""+"mins");
}
while(minutes==30)
{
System.out.println("time up");
break;
}
System.out.println("timer displayed");
}
public void actionPerformed(ActionEvent e)
{
Object obj=e.getSource();
if(obj.equals(java))
{
panel.remove(online);
panel.remove(select);
panel.remove(java);
panel.remove(vb);
panel.add(det);
det.setBounds(30,30,300,20);
panel.add(det1);
det1.setBounds(30,70,300,20);
panel.add(str);
str.setBounds(90,150,100,20);
panel.setVisible(true);
StartupApplet1 S3=new StartupApplet1();
            str.addActionListener(S3);

           }
if(obj.equals(vb))
{
panel.remove(online);
panel.remove(select);
panel.remove(java);
panel.remove(vb);
panel.add(det);
det.setBounds(30,30,300,20);
panel.add(det1);
det1.setBounds(30,70,300,20);
panel.add(str);
str.setBounds(90,150,100,20);
panel.setVisible(true);
StartupApplet1 S3=new StartupApplet1();
            str.addActionListener(S3);
}
if(obj.equals(str))
{
panel.remove(det);
panel.remove(det1);
panel.remove(str);
System.out.println("display timer");
display();
}
}
}
  

[Jasmine kaur]

Hello,
I could not understand that your class StartupApplet1 should habe been exentded with Applet class and I have noticed that you not have done this and how are you calling this applet.
Please see your code once again.
jasmine

[Jasmine kaur]

reason of class cast exception is that you have not extended your calss with applet class thats why you are getting this exception .Please extend your calss with applet .
Thanks