classes in java

for any java experts this will be easy.. just write 3 classes, each with a short # of methods.. contact me for further info.. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform should work on windows ## Deadline information would like it done before this date