Step 6: Use a loop to keep asking the player to enter a valid row and col. Use a conditional to check if the position on the board at row and col does not already have an x or o. Hint: If the user types a row and col that is a spot that already has an x or o on it, then the row and col aren’t valid. Use a conditional to check if the row and col are not greater than 2 and not less than 0. Now, why would the row and col the user entered not be valid? Hint: If the user types a row and col that is a spot that is not on the board, then the row and col aren’t valid.
Print a message asking the user for a row and use the Scanner to get their input, storing it in a variable called row repeat this for col. Step 5: Ask the user for the row and col and check if it is valid. We can use a conditional to check whose turn it is.Īlso, we can use string concatenation to print out the player’s name. Hint: We can use a boolean called player1 which is true if it is player 1’s turn and false if it is player 2’s turn. We need a way to keep track of which player’s turn it is in our game. Step 4: Print out the correct player’s turn and store the player’s char (x or o). Hint: We can do () in the inner for loop, and do () at the end of the outer for loop so that it starts a new line after each row has been printed. Hint: If we do (), then all of the positions are on one line. Hint: If we do (), then each position is on a new line. Inside our function, we need to print out each position on our board. We don’t need to return anything since the function is simply printing out the board. In order for our function to draw the board and print it out, do we need to pass a parameter into the function? Do we need to return anything? Hint: We need to pass in the board 2D array in order for the function to be able to print it. Step 3: Create a function that draws the board and prints it out like a 3x3 square. We store their input in a String called p1.ĭo the same for p2. Next, we print out a message asking the user to type in their name using (). Step 2: Ask the users for their names.įirst, we import the Scanner to help us get input from the user, by adding import to the top of our program. Inside both for loops, we can set board equal to a dash. Hint: We can use a nested for loop to iterate through each position on our board. Now we have to fill our board with dashes.
#Ultimate tic tac toe game board code
Hint: We can use the following line of code to make a 3x3 array of chars: char board = new char We need to make a 2D array of characters, which can be x, o, or. How do we do each of these steps? Step 1: Create a 3x3 array to represent the tic tac toe board and fill it with dashes.
Each turn it asks either player 1 or player 2 to enter a row and col index which is where they want to place their x and o, and then the board is printed again with the x or o in the right spot.After asking us for our names, the program prints out a 3x3 board filled with dashes, signifying empty spots.You can also view my project solution code if you get stuck. Without further ado, let’s get started! Project DemoĬlick run to play the Tic Tac Toe Java game yourself below! Moreover, we learn how we can turn a commonly played game into code by learning to think like a programmer. Just using these core concepts, we can create a whole game of Tic Tac Toe from start to finish. Learning Outcomes Core concepts practiced: Coding experience in language: Beginner.This is a challenging project for Java coders familiar with basic concepts, and is also great practice for AP Computer Science students. Use a 2D array to make a Tic Tac Toe game - and practice using conditionals, loops, and functions!
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