hello friend's,
I have been assigned in a project for making a login page in JAVA using HashMap. I have been told to make three methods named "private boolean addUser(username password), private boolean removeUser(), private boolean validateUser()". In the first method if username and password is added ,it will return true saying username added
In the validate method if username already exist ,it will retrun false saying Can't add ,change username.
Considering me a newbie, can u please help me regarding this project.

Thanks...waiting for ur reply.
cheers..
gaurav