Fill in login Window by Java Program

Dear gurus,
I am taking a security subject and have the assignment to write program to attack a site with brute force. The password is made up of 3 letters.
My problem is how can I have a java program to try logging in and fill in the user login windows (from Apache).
I can ensure this is an uni assignment, not a message from an hacker (attacker).
Advise of all types are appreciated.
Regards,
Francis

Hi,
you can pass usernam and password in the URL, so you don't have to fill in the login window. E.g.
http://username:[email protected]
(this is not an existing URL, do don't click on it).
Andre

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