// Exercise 3.7
public class CheckerBoard {// Saved as "CheckerBoard.java"
	public static void main (String[] args) {
		int size = 7;
		
		//use 2 FOR loops to print the board
		for (int row = 1; row <= size; row++) {
			// Use modulus 2 to find alternate lines
			if ((row % 2) == 0) { // row 2, 4, 6, 8
				System.out.print(" ");
			}
			for (int col = 1; col <= size; col++) {
				System.out.print("# "); // print without newline
			}
			System.out.println();
		}
	}
}