problem trying to log on to my video library system
i am trying to log on to the video library system that i just developed. the LogOn program works to a certain extent (the appropriate programs are attached to this message in a .zip file). when i try to log onto my system time. a JOptionPane.ERROR_MESSAGE message appears on screen. when i press OK inside the message, the message disappears but the same one appears again. i press OK again + the JOptionPane messages stop appearing again. when i press ok after entering my login details in the text + password fields, a main menu (either an administrator menu or a user menu) should be displayed on screen. what should i do to make this problem go away?
thank you for your help