I haven't used sajha for quite a long time, but I think Techguy is still around who can help you, lahure dai is also another option, but if u keep on posting ur assignments in the forums then u r not going to learn anything bro... It clearly mention u r not giving any effort to it, so I suggest you first u should try to do it by urself and post where u went wrong, or in which part of the codes u are confused. If it interests u to visit other forums then http://www.java-forums.org/ is better option for java related problems, most of them will be willing to help you, so, have a luck....