/**
 * PatternPrinter
 *
 * Uses single and nested for loops to create patterns of asterisks.
 *
 * Computer Science S-111
 */

import java.util.Scanner;

public class PatternPrinter {
    public static void main(String[] args) {
        Scanner console = new Scanner(System.in);
          
        System.out.print("Enter a positive integer: ");
        int n = console.nextInt();

        // Pattern 1: a single row of n asterisks
        for (int i = 0; i < n; i++) {
            System.out.print("*");
        }
        System.out.println();

        System.out.println();
        System.out.println();

        // Pattern 2: an n x n rectangle of asterisks using nested loops.
        // The inner loop prints a single row, and the outer loop
        // governs the number of rows.
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                System.out.print("*");
            }
            System.out.println();
        }

        System.out.println();
        System.out.println();

        // Pattern 3: a triangle
        for (int i = n; i > 0; i--) {
            for (int j = 0; j < i; j++) {
                System.out.print("*");
            }
            System.out.println();
        }
    }
}
