Solution Review: Task IV

import java.util.Scanner;

class Main {

	public static void move(char c, char[][] game_board) {

		//Indexes that correspond to a position on our board
		int row = 0;
		int col = 0;

		while(true) {
				
			Scanner in = new Scanner(System.in);
			System.out.print("Enter a row number (0, 1, or 2): ");
			row = in.nextInt();
			System.out.print("Enter a column number (0, 1, or 2): ");
			col = in.nextInt();

			//Check if the row and col are 0, 1, or 2
			if(row < 0 || col < 0 || row > 2 || col > 2) {
				System.out.println("This position is off the bounds of the board! Try again.");
			}		
			//Check if the position on the board the user entered is empty (has a -) or not
			else if(game_board[row][col] != '-') {
				System.out.println("Someone has already made a move at this position! Try again.");
			}
			//Otherwise, the position is valid so break out of the while loop
			else {
				System.out.println("\nInput is valid!");
				game_board[row][col] = c;	
				System.out.println("\nGame board updated.");
				return;
			}
		}	
	}
	  
	public static void main(String[] args) {
		
		//Let's create a 3x3 character array that represents our tic tac toe board
		char[][] game_board = new char[3][3];
  
        //variables to keep track of players
		char c = '-';
		boolean p1Turn = true; 

		//Initialize our board with '-'
		for(int i = 0; i < 3; i++) {
			for(int j = 0; j < 3; j++) {
				game_board[i][j] = '-';
			}
		}
		
		displayBoard(game_board);
		c = checkTurn(c, p1Turn);
		move(c,game_board);
    }

	//Method to display the Tic-Tac-Toe board
	public static void displayBoard(char[][] game_board) {
		System.out.println("\nTic Tac Toe Board");
		
		//Outer loop will follow the row-major order
		for(int i = 0; i < 3; i++) {
			//Inner loop will follow the column-major order
			for(int j = 0; j < 3; j++) {
				System.out.print(game_board[i][j]+" ");
			}
			//This will make a new line after every row so that each row is printed on a separate line
			System.out.println();
		}
	}

    //Method to check whose turn it is
	public static char checkTurn(char c, boolean p1Turn){

		if(p1Turn) {
			System.out.println("Player1's Turn (x):");
			c = 'x';
		} 
		else {
			System.out.println("Player2's Turn (o):");
			c = 'o';
		}
	    return c;
	}
}