Introduction - If you have any usage issues, please Google them yourself
A randomly generated 4 0-9 integer form a sequence (using LinkedList <Integer> Storage) example: 36442. Then asks the user sub-loop guess this number 4 in the user every guess once, prompts the user to have a few numbers in the correct position. For example: The user enters 3724 (3 and 4 position correct), then prompts the user to have two numbers right (but not the specific tips which two numbers correctly, requiring users to make their own judgment). 3 Use LinkedList store user each guess is a digital portfolio. Before users can view their input example: 37245724 ...... 4 10th when the user guessed, there is no chance that prompts speculation fails.