: Class Board

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Class Board

java.lang.Object
  |
  +--Board

The Board class represents the 3 by 3 grid on which players make their marks in the game Tic Tac Toe. Bugs: none known

Constructor Summary
`Board()` Constructs a 3 by 3 grid with empty cells for the playing board.

Method Summary
`boolean`	`cellFree(Move move)` Checks if the cell is empty at the location of a specified move.
`boolean`	`checkCol(int col, Mark mark)` Checks for "three in a row", for a specified column and mark.
`boolean`	`checkDiag(int diag, Mark mark)` Checks for "three in a row", for a specified diagonal and mark.
`boolean`	`checkRow(int row, Mark mark)` Checks for "three in a row", for a specified row and mark.
`void`	`display()` Displays the board in the console window.
`void`	`markMove(Move move, Mark mark)` Puts a player's mark in the cell corresponding to the specified move.

Methods inherited from class java.lang.Object

clone, 
equals, 
finalize, 
getClass, 
hashCode, 
notify, 
notifyAll, 
toString, 
wait, 
wait, 
wait

Constructor Detail

public Board()

Constructs a 3 by 3 grid with empty cells for the playing board.

Method Detail

public void markMove(Move move,
                     Mark mark)

Puts a player's mark in the cell corresponding to the specified move.

Parameters:: move - the specified move (i.e. row and column coordinates); mark - the player's mark to be made on the board, typically "X" or "O"

public void display()

Displays the board in the console window. Assumption: a player's mark is a single character.

public boolean cellFree(Move move)

Checks if the cell is empty at the location of a specified move.

Parameters:: move - the specified move (i.e. row and column coordinates)
Returns:: returns true if the cell is empty at the location specified by move, otherwise false is returned

public boolean checkRow(int row,
                        Mark mark)

Checks for "three in a row", for a specified row and mark.

Parameters:: row - the row specified to be checked, must be 1, 2, or 3; mark - the mark specified to be matched
Returns:: true if all cells in the specified row have the specified mark, otherwise false is returned

public boolean checkCol(int col,
                        Mark mark)

Checks for "three in a row", for a specified column and mark.

Parameters:: col - the column specified to be checked, must be 1, 2, or 3; mark - the mark specified to be matched
Returns:: true if all cells in the specified column have the specified mark, otherwise false is returned

public boolean checkDiag(int diag,
                         Mark mark)

Checks for "three in a row", for a specified diagonal and mark.

Parameters:: diag - the diagonal specified to be checked, must be 1 or 2 1 is the diagonal from upper-left to lower-right 2 is the diagonal from upper-right to lower-left; mark - the mark specified to be matched
Returns:: true if all cells in the specified diagonal have the specified mark, otherwise false is returned