Codebreaker game written in Java. Uses 'javabook' library for display

Based on the Java programming language and the javabook class library. The game have a purely text based interface, no graphics.

The game starts by choosing the code patch which is a sequence of four colours from the following available colours: • red(R), • orange (O), • yellow (Y), • green (G), • blue (B), • Indigo (I), • violet (V).

The code patch is not displayed to the user. Only 4 lines are displayed ( _ _ _ _ ) and lives = 8. The user enters a string of four characters which is their guess at the sequence of 4 letters choose by the computer. The user input is compared to the code patch and the following feedback is provided: • If the two code patches match, the game says YOU WIN, do you want to play again (Y/N)? • If one or more colours between the two colour patches match, display the positions where the colours match. • If the colour is correct but the position is wrong for one or more colours give the user a clue as to how many colours there are in the in the users patch that are not in the correct position. • If the same colour is used twice in the users patch and twice in the computers patch but the positions are wrong the clue will have a value of 2. • if the colour patch has not been guessed then a life is lost and the user is asked : Enter a sequence a 4 character sequence from ROYGBIV or 0 to exit: • If the number of lives is zero following this guess and the user has not won, then display, the code patch and. YOU LOOSE, do you want to play again (Y/N)? • If instead of entering in a code sequence the user enters 0, or there are 0 in the code patch entered, exit the game (boss kill switch) • If the same sequence is entered twice or more, inform the user that duplicate patches are not allowed and ask then to re enter a new code patch. No life is lose for a duplicate entry.