## Two dimensional array.

``````
/**
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;
}

}

``````

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