ex53.java

public class ex53 {
    public static void main(String[] args) {
        printGrid(3, 6);
    }

    public static void printGrid(int rows, int cols) {
         for (int line = 1; line <= rows; line++) {
            for (int lineNum = line; lineNum <= (rows*cols) - rows; lineNum = lineNum + rows) {
                System.out.print(lineNum);
                System.out.print(", ");
            }
            System.out.print((((rows*cols)-rows))+line);
            System.out.println();
        }
    }
}