import java.awt.*;
import java.io.*;
import java.applet.*;

public class password extends Applet

{
      protected TextField userIDField;
      protected TextField passwordField;
      protected TextArea textArea;
      private Label userIDLabel;
      private Label passLabel;
      private String pass_user;
      private String userID_user;
      private String response;
      private String userID;	

      public void init()
      {
	   userIDLabel = new Label ("Enter Your UserID");	
	   add (userIDLabel);
	   userIDField = new TextField(20);
	   add(userIDField);
           passLabel = new Label ("Enter Your Password");
           add (passLabel);
           passwordField = new TextField(10);
           passwordField.setEchoCharacter('*');
           add(passwordField);
       }

      public void paint (Graphics p) {

                p.drawString(response, 100, 100);
                }

      public String getID() 	
      {
	try
	{
		RandomAccessFile infile = new RandomAccessFile("input.dat", "r");
		return infile.readLine();
	}
	catch (Exception e)
	{
		String err = e.toString();
		response = err;
		repaint();
		return("error");
	}
      }
	
      public boolean action(Event evt, Object whichAction)
      {
           if (evt.target != passwordField)
           {
                return false;
           }
              
	       userID_user = userIDField.getText();			
	       userID = getID();
	       if (userID_user.equals(userID))
		  {	
		       pass_user = passwordField.getText();
        	       if (pass_user.equals("CS463")) 
			{
		               response="ACCESS GRANTED";
               			repaint();
               		}
               		else 
			{
		               response="ACCESS DENIED";
		               repaint();
               		}
		}
	      else
		{
			response="Enter a valid user-ID";
			repaint();
		}		
          return true;
     }
}