/* This program is set up to check passwords, and to either verify and allow one into the
class list - for inls161.  The password and userName are "java" and "inls161" repectively.
I added a bit to the request of the assignment in that I added in the ability to repeat 
attempts to try the password /user combination.  There is different messages based on the 
number of tries.  In addition further warning when you have a last try to get it right is given

Possible further add-ins for this program include a different reply if the first time they
miss password and then miss userName second time and vice-versa.  In addition, some kind
of additional programming to protect input of userName from being displayed */

//import classes
import javax.swing.*;

// names the program, sets up JApplet
public class Assignment4a extends JApplet
{

// begins the init method
public void init()
{

// this step defines variables that will be used in this program
String userName;
String password;
int counter = 0 ;

/* this allows a limited number of checks of the password (<3) before later instructions deny the user any further attempts */
while ( counter < 3 )
{

/* gathers input from user by using JOptionPane.showInputDialog method - in addition to this,
will give different outputs for each successful try.  This goes beyond what is required
by providing a  */
userName = JOptionPane.showInputDialog ("Please input class name:");
password = JOptionPane.showInputDialog ("Please input password:");

// outcome for the user getting the right name and password
if ((userName.equals("inls161")) && (password.equals("java") && counter == 0))
{JOptionPane.showMessageDialog (null, "You are welcome to the INLS161 java class.");
break;}

// outcome for the user getting the right name and password on 2nd attempt
if ((userName.equals("inls161")) && (password.equals("java") && counter == 1))
{JOptionPane.showMessageDialog (null, "It took a 2nd attempt to get this right!!   - You are welcome to the INLS161 java class.");
break;}

// outcome for the user getting the right name and password on third attempt
if ((userName.equals("inls161")) && (password.equals("java") && counter == 2))
{JOptionPane.showMessageDialog (null, "Wow, it took 3 Attempts to get this right, please remember your password more carefully!! - You are welcome to the INLS161 java class.");
break;}


// if user does not get something right the following outcomes result
// second attempt at user name and password!!
if (((!userName.equals("inls161")) && (password.equals("java")) && ( counter == 0 )))
{JOptionPane.showMessageDialog (null, "Wrong userName, \n try again, please.");
}
if (((userName.equals("inls161")) && (!password.equals("java"))) && ( counter == 0 ))
{JOptionPane.showMessageDialog (null, "Wrong password, \n try again, please.");
}
if (((!userName.equals("inls161")) && (!password.equals("java"))) && (counter == 0 ))
{JOptionPane.showMessageDialog (null, "Please check your userName and password, \n then try again");
}

// if user does not get something right again the following outcomes result
// third attempt at user name and password!!
if (((!userName.equals("inls161")) && (password.equals("java"))) && (counter == 1 ))
	{JOptionPane.showMessageDialog (null, "Wrong userName this time, one last chance to try again");
	}
if (((userName.equals("inls161")) && (!password.equals("java"))) && (counter == 1 ))
	{JOptionPane.showMessageDialog (null, "Wrong password this time, one last chance to try again");
	}
if (((!userName.equals("inls161")) && (!password.equals("java"))) && (counter == 1 ))
	{JOptionPane.showMessageDialog (null, "Please check your userName and password this time, one last chance to try again");
	}

// this step adds a number to the counter in order to discontinue on earlier while command (<3)
counter = counter + 1;
}// ending bracket for the while loop


/*If the user failed to login for three times, tell him that he can't login after 3 failed attempts */
if (counter == 3)

{JOptionPane.showMessageDialog(null, "Sorry, you have failed 3 times.\n You are being disconnected - check userName and passowrd and try again");
}

} //end method

} //end class Homework3