Hi all, I have just finished with my tict-tac-toe program, and I thought I'd post it here if anybody fancy giving
me any feedback. Also, I have a problem with printing the board, probably due to my lack of knowledge in using printf as opposed to println.
Anyway this is the method that prints off the board:
//print board
public void printBoard(){
System.out.print("\n\n\n\n\n");
System.out.println("| " + board[0][0] + " | " + board[0][1] + " | " + board[0][2] + " |");
System.out.println("| " + board[1][0] + " | " + board[1][1] + " | " + board[1][2] + " |");
System.out.println("| " + board[2][0] + " | " + board[2][1] + " | " + board[2][2] + " |");
System.out.print("\n\n\n\n\n");
/* System.out.printf( "%s%d%s%d%s%d%s " ) */
}
Let me give you a bit of background info first: if a square is empty it will have EMPTY printed on it, otherwise it will get a X or a O. I bet you can see the problem already. If an EMPTY is replaced by a X or O the layout of my board is completely messed up:
| EMPTY | 0 | EMPTY |
| EMPTY | EMPTY | EMPTY |
| EMPTY | EMPTY | EMPTY |
So I have to try to make sure that the same space is preserved whether I have a symbol or an EMPTY in there.
I know I have to use the printf method to achieve that but the thing is EMPTY is of type enum and I am not quite sure how to print that. As you can see I have started my attemp to use the printf method/* System.out.printf( "%s%d%s%d%s%d%s " ) */
but I am not sure this will work. Surely the "|" can be printed as a string but how about board[n][n]?
Any help is obviously much appreciated as usual
I wanted to attach the fiels but it looks like I am not allowed so -sorry - I paste them in here (or alternatively you can try these 2 links to some kind of online compiler I found, not sure if that will work:
http://ideone.com/BveyvU
http://ideone.com/dlM0VB
):
/*TicTacToeTest.java*/
import java.util.Scanner;
public class TicTacToeTest{
public static void main( String[] args ){
boolean isFull = false;//if true all the squares have been assigned.
boolean isDraw = false;//to check if the game is draw
boolean squareStatus = false;//returns the status of a square, if false the square is full if true the square is empty
boolean victory = false;//if returns true one of the players has won
int playerCounter = 1;//if it is odd it's player1's turn if even it's player2's turn
int rowInput;
int colInput;
Scanner input = new Scanner( System.in );
TicTacToe myTicTacToe = new TicTacToe();//create object
myTicTacToe.printBoard();
while( !isFull ){
isDraw = myTicTacToe.isDraw();
if( isDraw ){
System.out.println( "The game is draw!\n" );
//print board
//myTicTacToe.printBoard();
break;
}
//print board
//myTicTacToe.printBoard();
//System.out.println("the number is " + playerCounter );
if( !(myTicTacToe.isOdd( playerCounter ))){//player 1
System.out.println( "\nPlayer 1: enter the coordinates of the square.\nRow and column - values between 1 and 3." );
}
else{//player 2
System.out.println( "\nPlayer 2: enter the coordinates of the square.\nRow and column - values between 1 and 3." );
}
System.out.println( "\nRow: " );
rowInput = input.nextInt();
System.out.println( "\nColumn: " );
colInput = input.nextInt();
rowInput = myTicTacToe.optimizeInput( rowInput );//to subtract 1 from the input
colInput = myTicTacToe.optimizeInput( colInput );//to subtract 1 from the input
//check input
squareStatus = myTicTacToe.checkSquare( rowInput, colInput );
//if the square is taken - true - input again row and column till you find a free one
while( squareStatus ){
System.out.println( "Square taken, try again. \nEnter the coordinates of the square.\nRow and column - values between 1 and 3." );
System.out.println( "\nRow: " );
rowInput = input.nextInt();
System.out.println( "\nColumn: " );
colInput = input.nextInt();
rowInput = myTicTacToe.optimizeInput( rowInput );//to subtract 1 from the input
colInput = myTicTacToe.optimizeInput( colInput );//to subtract 1 from the input
//check input
squareStatus = myTicTacToe.checkSquare( rowInput, colInput );
}
//assign the symbol to the chosen square
myTicTacToe.assignSymbol( rowInput, colInput, playerCounter );
//print board
myTicTacToe.printBoard();
//check for draw
victory = myTicTacToe.checkVictory( rowInput, colInput, playerCounter );
//player 1
if(( victory ) && ( myTicTacToe.isOdd( playerCounter ) )){
System.out.println( " Player 1 wins!" );
//print board
//myTicTacToe.printBoard();
break;
}
//player2
else if(( victory ) && !( myTicTacToe.isOdd( playerCounter ) )){
System.out.println( " Player 2 wins!" );
//print board
myTicTacToe.printBoard();
break;
}
playerCounter++;//increment counter to change player's turn
}//end while loop
}//end main
}//end TicTacToeTest class
and the other one
/*TicTacToe.java*/
public class TicTacToe{
//private boolean isFull = false;//if true all the squares have been assigned.
//private int playerCounter = 1;//if it is odd it's player1's turn if even it's player2's turn
private TicTacToeEn[][] board = new TicTacToeEn[3][3];//to represent the 3-by-3 board
//private boolean isDraw;//to check if the game is draw
//private boolean squareStatus;//returns the status of a square, if false the square is full if true the square is empty
//private boolean victory;//if returns true one of the players has won
//private int row;//row of the 3-by-3 board
//private int column;//column of the 3-by-3 board
//private int gameCounter;//counts the moves
public enum TicTacToeEn{
X, O, EMPTY
}//end of enum
TicTacToeEn theSymbol;//of type enum holds the current theSymbol, X or O
//constructor
public TicTacToe(){
for( int i = 0; i < board.length; i++ ){
for( int j = 0; j < board[i].length; j++ ){
board[i][j] = TicTacToeEn.EMPTY;
}//columns
}//rows
}//end of constructor
//checks if square is empty
public boolean checkSquare( int row, int column ){
if(board[row][column] == TicTacToeEn.EMPTY){
return false;
}
else{
return true;
}
}//end of checkSquare()
//assigns X or O to the square
public void assignSymbol( int row, int column, int counter ){
if( isOdd( counter )){//it's player1
board[row][column] = TicTacToeEn.X;
}
else{//it's player2
board[row][column] = TicTacToeEn.O;
}
}//end of assignSymbol()
//check if the game is draw
public boolean isDraw(){
for( int i = 0; i < board.length; i++ ){
for(int j = 0; j < board[i].length; j++ ){
if( board[i][j] == TicTacToeEn.EMPTY ){//if there is an empty square
return false;
}
}//end of column array
}//end of row array
return true;//if there isn't an empty square
}//end of isDraw()
//checks if anybody has won the game
public boolean checkVictory( int row, int column, int counter ){
if( isOdd( counter )){//it's player1
theSymbol = TicTacToeEn.X;
}
else{//it's player2
theSymbol = TicTacToeEn.O;
}
//determine victory
if(
( board[row][0] == theSymbol && board[row][1] == theSymbol && board[row][2] == theSymbol )//check 3-in-the-row horizontally
|| ( board[0][column] == theSymbol && board[1][column] == theSymbol && board[2][column] == theSymbol )//check 3-in-the-row vertically
|| ( board[0][0] == theSymbol && board[1][1] == theSymbol && board[2][2] == theSymbol )//check 3-in-the-row 1st diagonal
|| ( board[0][2] == theSymbol && board[1][1] == theSymbol && board[2][0] == theSymbol )//check 3-in-the-row 2nd diagonal
){
return true;
}
else{
return false;
}
}//end of checkVictory()
//determine if the argument is odd or even
public boolean isOdd( int number){
if( number % 2 == 0){//it's even
return true;
}
else{//it's odd
return false;
}
}//end of isOdd()
/*get the right input for the array,
effectively subtracting 1 to the input so that the
index is still within the array range*/
public int optimizeInput( int theInput ){
int newInput = theInput - 1;
return newInput;
}
//print board
public void printBoard(){
System.out.print("\n\n\n\n\n");
System.out.println("| " + board[0][0] + " | " + board[0][1] + " | " + board[0][2] + " |");
System.out.println("| " + board[1][0] + " | " + board[1][1] + " | " + board[1][2] + " |");
System.out.println("| " + board[2][0] + " | " + board[2][1] + " | " + board[2][2] + " |");
System.out.print("\n\n\n\n\n");
/* System.out.printf( "%s%d%s%d%s%d%s " ) */
}
}//end of class
