Question

Write a program that prompts the user for a positive integer, n, and then prints a following shape of stars using nested for loop, System.out.print(“*”);, and System.out.println();. Example1:

Enter a positive integer: 3

*

* *

* * *

* *

*



Example2:

Enter a positive integer: 5

*

* *

* * *

* * * *

* * * * *

* * * *

* * *

* *

*

JAVA LANGUAGE!!

Answer 1

import java.util.Scanner;

public class NestedLoopsPattern {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter a positive integer: ");
        int n = in.nextInt();
        for (int i = 0; i < n; i++) {
            for (int j = 0; j <= i; j++) {
                System.out.print("*");
            }
            System.out.println();
        }
        for (int i = n-1; i >= 1; i--) {
            for (int j = 0; j < i; j++) {
                System.out.print("*");
            }
            System.out.println();
        }
        in.close();
    }
}