Two dimensional array.

The rules of chess

/**
Fall 2011 CSci 2101 Data Structures.

The class represents a chess board. 
The square a8 corresponds to a position [0][0] in the
two-dimensional array.

Notations for chess pieces (lower-case letters for white, 
upper-case letters for black):
K,k - king, Q,q - queen, R,r - rook, B,b - bishop, 
N,n - knight, P,p - pawn 
**/
public class Chess {
    public static void main(String [] args) {
	char [][] chessBoard = new char[8][8];
	initialize(chessBoard);
	addPiece('K','a',8,chessBoard);
	addPiece('p','h',2,chessBoard);
	addPiece('p','g',2,chessBoard);
        addPiece('b','h',8,chessBoard);
	
	printChessBoard(chessBoard);
	
    }


    /**
       The method sets a chessBoard to an empty one
       (characters that do not denote a chess piece) 
    **/
    public static void initialize(char [][] chessBoard) {
	// change it to use + for black squares
	// a1 is a black square
	for(int i = 0; i < 8; i++) {
	    for(int j = 0; j < 8; j++) {
	    	    if( (i+j)%2 == 0 ){
	    	    	chessBoard[i][j] = ' ';
	    	    }
	    	    else{
	    	    	 chessBoard[i][j] = '+';
	    	    }	    	
	    }
	
	}
	
    }

    /**
       print a chess board
    **/
    public static void printChessBoard(char[][] chessBoard) {
	for (char[] row: chessBoard) {
	    for (char square: row) {
		System.out.print(square);
	    }
	    System.out.println();
	}
    }

    /**
       The method adds a chess piece to a chessBoard at 
       a given row and column.
    **/
    public static void addPiece(char piece, char column, int row, 
			   char[][] chessBoard) {
	chessBoard[8 - row][column - 'a'] = piece;
    }


}

CSci 2101 course web site.