Bladimir Baez Bladimir Baez 66 1 1 gold badge 1 1 silver badge 6 6 bronze badges. The extra space will make what's printed out look like a grid. You should really tell us what output your getting or else we cant really help you. One problem may be that System.
Try using System. Thats why your code prints one symbol per line. If you want the carret to stay on the same line, use System. Add a comment. Active Oldest Votes.
A Test if you're on the first row OR the first column based on your indexs values. Improve this answer. Yassin Hajaj Yassin Hajaj Thank you! Now it's printing better now. Do you know a way that I can make the board size NxN from the keyboard input? This piece of code will work for you: System. Kaonashi Kaonashi 1 1 1 bronze badge. Sign up or log in Sign up using Google. The compiler is simply expecting for a value to be returned for all non-void methods. This will set the board to all empty values.
To loop through the rows, create a for loop and an integer, in this case named i, to represent which row we are currently observing. Inside of this for loop, we will create a second for loop with an integer j to represent which column we are currently observing.
With both loops completed and nested properly, we can iterate through every place inside of the board 2D array.
Attached to this step is an image showing one possible implementation of the initializeBoard method. It will be handled in the method public void printBoard , which is located in the TTT class. To print the board we must access every place in the 2D array named board in our TTT class.
Because we are dealing with a 2D array, this will be handled with nested for loops. First, we just need to print a line of dashes 13 of them in this case designating the top of the board. Below that, we need a for loop that will loop through each of the three rows.
This loop will contain a call to print a ' ' character, another for loop to loop through the columns, and a call to the System. Our inner for loop will also only loop through three columns. Since our outer for loop already printed the first character of each row of the board, we can go ahead to print the character that belongs in the box.
This print statement will also contain a concatenated character, to separate the boxes. The only thing left is to print the last call to print the new line to separate each row, followed by the 13 dashes.
The second attached image shows an example of what the described print function might look like. There are three different functions to check for a win: rows, columns, and diagonals. Computers have to separate these into different conditions because they are all different in terms of arrays. For checkForWin method: You simply need a return statement that calls upon the three different functions. If checking the rows for win does not return true then check the columns for win, etc.
For checkRowsForWin method: We are looping through the rows to see if there are any winners. This will require one for loop with an if statement inside of it.
The for loop will be incrementing through integer i so as to check each row. The only change will be inside of the if statement. Instead of incrementing through the rows, we will be incrementing through the columns.
For checkDiagonalsForWin method: Everything written can be contained inside the parentheses of a return statement. The first check we will perform is on the diagonal from the top left corner to the bottom right corner.
To do this, we check all the spaces that would be included in this section. Now we have to make sure if a player gets three in a row, he or she wins. For checkRowCol method: This method is used by the other methods to send down three values.
Then we compare the first value to the second, and the second to the third, and if and only if all three values are the same AND they are not empty statements, then this method will return true. The changePlayer method will swap the variable currentPlayerMark between x and o.
To do this, just check what the variable currently holds. If the variable is holding an 'x', then change it to an 'o'. The user and computer. The player has one action. Pick the next best cell on the board. Eclipse is the IDE used in this tutorial and can be using this link below:. You will be playing against the computer. When prompted for user move, provide your move in the format [row][column]. I wonder if you will see this comment Reply 4 years ago. More by the author:. About: I'm a high school senior who is very interested in coding, robotics, drawing, dancing, video making, and photography.
Happy Tic Tac Toeing : Here are simple steps to write your own tic tac toe program in java. Here is the setup: Tic tac toe board represented by a two dimensional character array. There is a gaming module which controls the next steps and the decision making. Here is how the Tic Tac Toe program works: 1. Initialize board 2.
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