TicTacToe.java

import java.util.Scanner;
public class TicTacToe {
	static char [][] board = new char [3][3];
	static int row;
	static int column;
	public static Scanner sc = new Scanner(System.in);
	public static void show_result_board() {
		for (int i = 0; i<3; i++) {
			for (int j = 0; j<3; j++) {
				System.out.print(board[i][j] + " ");
			}
			System.out.println();
		}
	}
	public static void win() {
		
		if(board[0][0]=='x' && board[0][1]=='x' && board[0][2]=='x') {
			System.out.println("X own the match");
			System.exit(0);
		}
		else if(board[0][0]=='x' && board[1][1]=='x' && board[2][2]=='x') {
			System.out.println("X own the match");
			System.exit(0);
		}
		else if(board[0][2]=='x' && board[1][1]=='x' && board[2][0]=='x') {
			System.out.println("X own the match");
			System.exit(0);
		}
		else if(board[1][0]=='x' && board[1][1]=='x' && board[1][2]=='x') {
			System.out.println("X own the match");
			System.exit(0);
		}
		else if(board[2][0]=='x' && board[2][1]=='x' && board[2][2]=='x') {
			System.out.println("X own the match");
			System.exit(0);
		}
		else if(board[0][0]=='x' && board[1][0]=='x' && board[2][0]=='x') {
			System.out.println("X own the match");
			System.exit(0);
		}
		else if(board[0][1]=='x' && board[1][1]=='x' && board[2][1]=='x') {
			System.out.println("X own the match");
			System.exit(0);
		}
		else if(board[0][2]=='x' && board[1][2]=='x' && board[2][2]=='x') {
			System.out.println("X own the match");
			System.exit(0);
		}
		if(board[0][0]=='o' && board[0][1]=='o' && board[0][2]=='o') {
			System.out.println("O own the match");
			System.exit(0);
		}
		else if(board[0][0]=='o' && board[1][1]=='o' && board[2][2]=='o') {
			System.out.println("O own the match");
			System.exit(0);
		}
		else if(board[0][2]=='o' && board[1][1]=='o' && board[2][0]=='o') {
			System.out.println("O own the match");
			System.exit(0);
		}
		else if(board[1][0]=='o' && board[1][1]=='o' && board[1][2]=='o') {
			System.out.println("O own the match");
			System.exit(0);
		}
		else if(board[2][0]=='o' && board[2][1]=='o' && board[2][2]=='o') {
			System.out.println("O own the match");
			System.exit(0);
		}
		else if(board[0][0]=='o' && board[1][0]=='o' && board[2][0]=='o') {
			System.out.println("O own the match");
			System.exit(0);
		}
		else if(board[0][1]=='o' && board[1][1]=='o' && board[2][1]=='o') {
			System.out.println("O own the match");
			System.exit(0);
		}
		else if(board[0][2]=='o' && board[1][2]=='o' && board[2][2]=='o') {
			System.out.println("O own the match");
			System.exit(0);
		}
	}
	public static void get_valid_move() {
		while (true) {
			System.out.print("Enter a row number: ");
			row = sc.nextInt();
			System.out.print("Enter a column number: ");
			column = sc.nextInt();
			if (row >= 0 && row < 3 && column >= 0 && column < 3) {
				if (board[row][column] == '-') {
				} else {
					System.out.println("That spot is already occupied! Please try a different spot.");
				}
				
			} else {
				System.out.println("Invalid input! Rows and columns must be 0, 1, or 2.");
			}
		}
	}

	public static void main (String[] args) {
		System.out.println("=== WELCOME TO TIC-TAC-TOE ===");
		System.out.println("row are the horizontal spaces or lines which are 3 here");
		System.out.println("column are the vertical spaces or lines which are 3 here");
		System.out.println("Warning- row could not be entered more than 0,1,2 and same for column");
		System.out.println("Specific boxes can be accessed by coordinates. suppose first line is 00--> it means row 0 and column 0. 01--> it mean row 0 and column 1 and so on.");
		
		for (int i = 0; i<3; i++) {
			for (int j = 0; j<3; j++) {
				board[i][j] = '-';
			}
		}
		show_result_board();
		
		
		//1
		System.out.println("Enter for X: ");
		get_valid_move();
		board[row][column] = 'x';
		show_result_board();
		
		//2
		System.out.println("Enter for o: ");
		get_valid_move();
		board[row][column] = 'o';
		show_result_board();
		
		//3
		System.out.println("Enter for X: ");
		get_valid_move();
		board[row][column] = 'x';
		show_result_board();
		
		//4
		System.out.println("Enter for o: ");
		get_valid_move();
		board[row][column] = 'o';
		show_result_board();
		
		//5
		System.out.println("Enter for X: ");
		get_valid_move();
		board[row][column] = 'x';
		show_result_board();
		win();
		
		
		//6
		System.out.println("Enter for o: ");
		get_valid_move();
		board[row][column] = 'o';
		show_result_board();
		win();
		
		//7
		System.out.println("Enter for X: ");
		get_valid_move();	
		board[row][column] = 'x';
		show_result_board();
		win();
		
		//8
		System.out.println("Enter for o: ");
		get_valid_move();
		board[row][column] = 'o';
		show_result_board();
		win();
		
		
		//9
		System.out.println("Enter for X: ");
	   get_valid_move();
		board[row][column] = 'x';
		show_result_board();
		win();
	}
}