Cows and Bulls

The code is a naive implementation of the deductive game Cows and Bulls also known as MOO.

The players(the computer and you) think of a secret three digit number using digits from 1 to 9 without any repetitions.
The objective of the game is to guess the opponent's secret number first by taking turns. The number of cows in a guess is the number of digits that are in the guess and also in the opponent's secret number but are in different positions. The number of bulls in a guess is the number of digits that are in the guess and also in the opponent's secret number and also are in the same position.

eg 1: secret number: 625
Guess: 165
cows = 1 bulls = 1

eg 2: secret number: 986
Guess: 896
cows = 2 bulls = 1

The guesses made by the computer and the player are logged in the GUI in the two tables provided along with the corresponding number of cows and bulls(See attached screenshot).