I know I should learn a little more about java & MySQL, my apologies, but I need you to clarify this question or help me with a small code.
What I want to do is the following: - I have a table of users but I want that when a user places his username in a JTextField check if he has an example value "Users group: 5"
and if it has that value, open a window, what the window will do, but how could you create that structure of the if.