Java programming help Plz

Hey,
So I'm in this java class and our newest assignment is to test whether data input is valid and then do some kinda output. I'm having trouble figuring out a way to determine if a string starts with an Uppercase and is followed by lowercase (As for a first and last name). I think I need to break the string up into an array and then determine if the array[0] is uppercase, then...some other crap for lowercase, idk.

Anyways, anybody know java that can tell me what I need to use to break up a string like that and then test for upper or lower case?