you have just write "Exception in thread  main"
that means in you main  method some un-expected error
occure, might is can be ArrayIndexOutOfBoundException or
any other .. but for that i need the whole exception
message.. you have to look for [line no].. and name of
exception as i give example of ArrayIndexOutOfBound... that
means there is some error  where size of array is not
proper...