Write a program that lets the user play the game Rock, Paper, Scissors against the computer. The program
should work as follows:
? When the program begins, the results of the previous run of the program (ie - how many wins the user
had versus how many wins the computer had) are read from a file and displayed. Note - if this is the
very first run of the program then a welcome message is displayed.
? A method is called to determine the computer''s choice. In the method, a random number in the range of
1 through 3 is generated. If the number is 1, then the computer has chosen rock. If the number is 2,
then the computer has chosen paper. If the number is 3, then the computer has chosen scissors. (Don''t
display the computer''s choice yet).
? The user enters his or her choice of "rock", "paper", or "scissors" at the keyboard. (You can use a menu
for user input if you prefer). Remember to validate user input.
? The computer''s choice is displayed.
? A method is called to determine the winner according to the following rules:
o If one player chooses rock and the other player chooses scissors, then rock wins. Rock
smashes scissors.
o If one player chooses scissors and the other player chooses paper, then scissors wins. Scissors
cut paper.
o If one player chooses paper and the other chooses rock, then paper wins. Paper covers rock.
o If both players make the same choice, the game must be played again to determine the winner.
? A count of the number of wins for the user and for the computer is kept.
? The user is given the opportunity to play again.
? When the user is finished playing, the count values are written to the screen and to an output file for
later use.