Java programming query

[navjotjsingh]

I have a problem with the following java program. I am using JDK 1.6.0

Can somebody suggest solution to the problem?

Here is the code

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.io.*;
//<applet code=Login height=300 width=400></applet>
public class Login extends JApplet implements ActionListener
{
 JTextField textCustName;
 JPasswordField textPassword;
 JLabel labelCustName, labelPassword;
 JButton loginButton;
 
 public void init()
 {
  createApplet();  
 }
 
 public void createApplet()
 {
  JPanel panel;
  panel = new JPanel();
  getContentPane().add(panel);
  panel.setLayout(new FlowLayout());
  labelCustName = new JLabel("Customer login Name:");
  textCustName = new JTextField(10);
  labelPassword = new JLabel("Password:");
  textPassword = new JPasswordField(10);
  loginButton = new JButton("Login");
  panel.add(labelCustName);
  panel.add(textCustName);
  panel.add(labelPassword);
  panel.add(textPassword);
  panel.add(loginButton);
  loginButton.addActionListener(this);     
 }
 public void actionPerformed(ActionEvent evt)
 {
  Object obj = evt.getSource();
  if (obj == loginButton)
  {
   String entry = textCustName.getText() + ":" + new String(textPassword.getPassword());
   try
   {
    RandomAccessFile logfile = new RandomAccessFile("Customer.txt","rw");
    logfile.seek(logfile.length());
    logfile.writeBytes(entry);    
   }
   catch(IOException e)
   {
    showStatus("Cannot write on to the logfile"+e);
   }
  }
 }
}

Please help.

 

[RCuber]

What is the problem navjtoh? Though I dont know Java this looks very similar to C#. By looking at it , you may have some problem with event handler.

 

[navjotjsingh]

Try running this code under JDK 1.6.0 and you will know what's the problem.

Hey no java programmer here? I want this answer fast.

 

[navjotjsingh]

Hey, please somebody answer my query. I know there are many programmers here.

Posted screenshot of error:

*img253.imageshack.us/img253/7226/javaerrorhj5.th.jpg

 

[sachin_kothari]

^^ You are getting this error because you are using applets.
Untrusted Applets restricts access to files. You need to sign them to access files.
This should clarify your doubts.

 

[navjotjsingh]

Thanks for such a speedy reply. I already fixed it.

 

[RCuber]

ROLF .. when I saw this thread bumped I thought navjoth still didnot fix the problem.

 

[navjotjsingh]

^^ You are getting this error because you are using applets.
Untrusted Applets restricts access to files. You need to sign them to access files.
This should clarify your doubts.

second way is to use applet policy file which i did.