public class TwoD {
	public static void main(String[] args) {
		char[][] a = {		//or char a[][] = {
			{'O', 'O', 'X'},
			{'X', 'X', 'X'},
			{'O', ' ', 'O'}
		};

		//top row
		System.out.print(a[0][0]);
		System.out.print(a[0][1]);
		System.out.println(a[0][2]);

		//middle row
		System.out.print(a[1][0]);
		System.out.print(a[1][1]);
		System.out.println(a[1][2]);

		//bottom row
		System.out.print(a[2][0]);
		System.out.print(a[2][1]);
		System.out.println(a[2][2]);

		System.out.println();	//skip a line

		for (int row = 0; row < a.length; ++row) {
			System.out.print(a[row][0]);
			System.out.print(a[row][1]);
			System.out.println(a[row][2]);
		}

		System.out.println();

		for (int row = 0; row < a.length; ++row) {
			for (int col = 0; col < a[row].length; ++col) {
				System.out.print(a[row][col]);
			}
			System.out.println();
		}

		//To initialize the two-dimensional array to all zeroes,
		//char[][] a = new char[3][3];
	}
}