Question

Hey guys, I need help writing a Tic-Tac-Toe game programmed in Java. The game has to be a 1D (One-Dimension) array board NOT 2D. It has to be a human plays against the computer type of Tic-Tac-Toe. Here is the requirements for the program. PLEASE NO COPY AND PASTE ANSWER. Thank you in advance!

You will develop a program in which a human plays against the computer.
1. Validate user input at every opportunity.
a. Do not allow number entries less than 0
b. Do not allow number entries greater than 8
c. Do not allow non-numeric entries
2. Do not use global variables in the development of the program
3. You may use global constants in the development of the program
4. Use one-dimensional arrays to keep track of the game:
a. Computer moves
b. Human moves
5. You must use functions to pass arrays and implement other program requirements.
6. The program must be developed using functions so that the main() function consists mostly of function calls
7. Computer must be aggressive and take every opportunity to win the game, block the user from winning and if the human makes a mistake, then the computer will capitalize on it and win if possible
8. The main() function must use a loop to keep the user in the program until he/she wants to quit.
9. You may not use infinite loops: for(;;) or while(true)
10. You may not use the break statement to exit loops

Answer 1

Answer:

import java.util.*;

public class TicTacToeGame
{
private int counter;
private char location[]=new char[10];
private char player;
  
  
public static void main(String args[])
{
String ch;
TicTacToeGame Toe=new TicTacToeGame();
do{
Toe.beginBoard();
Toe.play_game();
System.out.println ("Press Y to play the game again ");
Scanner in =new Scanner(System.in);
ch=in.nextLine();
System.out.println("ch value is "+ch);
}while (ch.equals("Y"));
  
  
}
public void beginBoard()
{
  
char locationdef[] = {'0','1', '2', '3', '4', '5', '6', '7', '8', '9'};
int i;
counter = 0;
player = 'X';
for (i=1; i<10; i++) location[i]=locationdef[i];
presentBoard();
  
  
}
public String presentBoard()
{
System.out.println( "\n\n" );
System.out.println( "\n\n" );
System.out.println( "\n\n\t\t" + location [1] + " | " +location [2]+ " | " +location [3]);
System.out.println( " \t\t | | " );
System.out.println( " \t\t ___|____|___ " );
System.out.println( "\n\n\t\t" +location [4]+ " | " +location [5]+ " | " +location [6]);
System.out.println( " \t\t | | " );
System.out.println( " \t\t ___|____|___ " );
System.out.println( "\n\n\t\t" +location [7]+ " | " +location [8]+ " | " +location [9]);
System.out.println( " \t\t | | " );
System.out.println( " \t\t | | " );
System.out.println( "\n\n" );
return "presentBoard";
}
  
public void play_game()
{
int spot;
char blank = ' ';
  
System.out.println( "Player " + getPlayer() +" will go first and be the letter 'X'" );
  
do {
presentBoard();
  
System.out.println( "\n\n Player " + getPlayer() +" choose a location." );
  
boolean posTaken = true;
while (posTaken) {
  
Scanner in =new Scanner (System.in);
spot=in.nextInt();
posTaken = checklocation(spot);
if(posTaken==false)
location[spot]=getPlayer();
}
  
System.out.println( "Nice move." );
  
presentBoard();
  
nextPlayer();
}while ( getWinner() == blank );
  
}
  
public char getWinner()
{
char Winner = ' ';
  
  
if (location[1] == 'X' && location[2] == 'X' && location[3] == 'X') Winner = 'X';
if (location[4] == 'X' && location[5] == 'X' && location[6] == 'X') Winner = 'X';
if (location[7] == 'X' && location[8] == 'X' && location[9] == 'X') Winner = 'X';
if (location[1] == 'X' && location[4] == 'X' && location[7] == 'X') Winner = 'X';
if (location[2] == 'X' && location[5] == 'X' && location[8] == 'X') Winner = 'X';
if (location[3] == 'X' && location[6] == 'X' && location[9] == 'X') Winner = 'X';
if (location[1] == 'X' && location[5] == 'X' && location[9] == 'X') Winner = 'X';
if (location[3] == 'X' && location[5] == 'X' && location[7] == 'X') Winner = 'X';
if (Winner == 'X' )
{System.out.println("Player1 wins the game." );
return Winner;
}
  
  
if (location[1] == 'O' && location[2] == 'O' && location[3] == 'O') Winner = 'O';
if (location[4] == 'O' && location[5] == 'O' && location[6] == 'O') Winner = 'O';
if (location[7] == 'O' && location[8] == 'O' && location[9] == 'O') Winner = 'O';
if (location[1] == 'O' && location[4] == 'O' && location[7] == 'O') Winner = 'O';
if (location[2] == 'O' && location[5] == 'O' && location[8] == 'O') Winner = 'O';
if (location[3] == 'O' && location[6] == 'O' && location[9] == 'O') Winner = 'O';
if (location[1] == 'O' && location[5] == 'O' && location[9] == 'O') Winner = 'O';
if (location[3] == 'O' && location[5] == 'O' && location[7] == 'O') Winner = 'O';
if (Winner == 'O' )
{
System.out.println( "Player2 wins the game." );
return Winner; }
  

for(int i=1;i<10;i++)
{
if(location[i]=='X' || location[i]=='O')
{
if(i==9)
{
char Draw='D';
System.out.println(" Game is stalemate ");
return Draw;
}
continue;
}
else
break;
  
}
  
return Winner;
}
  
public boolean checklocation(int spot)
{
  
  
if (location[spot] == 'X' || location[spot] == 'O')
{
System.out.println("That location is already taken, please choose another");
return true;
}
else {
return false;
}
  
  
  
}
  
  
  
public void nextPlayer()
{
if (player == 'X')
player = 'O';
else player = 'X';
  
}
  
public String getTitle()
{
return "Tic Tac Toe" ;
}
  
public char getPlayer()
{
return player;
}
  
}