poker hand strength evaluator in java

Input of Test Cases The input is to be read as a string: <game-type> [<5 board cards>] <hand 1> <hand 2> <...> <hand N> ...where: game-type specifies the game type for this test case, one of: texas-holdem - for Texas Hold'em omaha-holdem - for Omaha Hold'em five-card-draw - for Five Card Draw <5 board cards> is a 10 character string where each 2 characters encode a card, only used for Texas and Omaha Hold' ems <hand X> is a 4, 8 or 10 character string (depending on game type) where each 2 characters encode a card <card> is a 2 character string with the first character representing the rank (one of A, K, Q, J, T, 9, 8, 7, 6, 5, 4, 3, 2) and the second character representing the suit (one of h, d, c, s). Jokers are not used. Output of Solutions The output should be returned as a string: <hand block 1> <hand block 2> <...> <hand block n> ... where: <hand block 1> is the hand block with the weakest value <hand block 2> is the hand block with the second weakest value ... and so forth. <hand block n> is the hand block with the strongest value Each hand block consists of one or multiple hands (each represented by 4, 8 or 10 character string, depending on game type, with 2 characters to encode a card) with equal hand value. In case there are multiple hands with the same value on the same board they should be ordered alphabetically and separated by = signs. The order of the cards in each hand should remain the same as in the input, e.g., don't reorder 2h3s into 3s2h. Examples Example input: texas-holdem 4cKs4h8s7s Ad4s Ac4d As9s KhKd 5d6d texas-holdem 2h3h4h5d8d KdKs 9hJh omaha-holdem 3d3s4d6hJc Js2dKd8c KsAsTcTs Jh2h3c9c Qc8dAd6c 7dQsAc5d five-card-draw 7h4s4h8c9h Tc5h6dAc5c Kd9sAs3cQs Ah9d6s2cKh 4c8h2h6c9c Example output: Ac4d=Ad4s 5d6d As9s KhKd KdKs 9hJh Qc8dAd6c KsAsTcTs Js2dKd8c 7dQsAc5d Jh2h3c9c 4c8h2h6c9c Ah9d6s2cKh Kd9sAs3cQs 7h4s4h8c9h Tc5h6dAc5c