By using the argument -nogui, you can play connect 4 on the command line. The computer will
take the first go and then await your move.
To make your move, you must type in the number corresponding to the column and pressing enter.
This will then cause a counter to be 'dropped' into the array. You are unable to enter a number outside of the given range, as
that will throw an Illegal Column Exception.
When there is a line of 4 counters of the same colour, either vertically, horizontally or
diagonally, the winner is declared.
GUI
By using the argument -gui, you can play connect 4 using a Graphical User Interface. You can
select who plays each other, whether human or computer. The default is Human v Human, and player 1 will always have the first go.
To make your move, you must click on the corresponding number button. This will then cause a
counter to be dropped into the board. As there is only the required range of buttons, it is not possible to drop a counter
outside of this range.
When there is a line of 4 counters of the same colour, either vertically, horizontally or
diagonally, the game is over. You can start a new game by clicking on the button on the right hand side.
