/****************************************************************************** * Compilation: javac DivisorPattern.java * Execution: java DivisorPattern n * * Prints a table where entry (i, j) is a '* ' if i divides j * or j divides i and '. ' otherwise. * * * % java DivisorPattern 20 * * * * * * * * * * * * * * * * * * * * * 1 * * * * * * * * * * * * 2 * * * * * * * * 3 * * * * * * * * 4 * * * * * * 5 * * * * * * * 6 * * * * 7 * * * * * * 8 * * * * * 9 * * * * * * 10 * * * 11 * * * * * * * 12 * * * 13 * * * * * 14 * * * * * 15 * * * * * * 16 * * * 17 * * * * * * * 18 * * * 19 * * * * * * * 20 * ******************************************************************************/ public class DivisorPattern { public static void main(String[] args) { int n = Integer.parseInt(args[0]); for (int i = 1; i <= n; i++) { for (int j = 1; j <= n; j++) { if (i % j == 0 || j % i == 0) { System.out.print("* "); } else { System.out.print(" "); } } System.out.println(i); } } }