Question

Write a RECURSIVE method that receives as a parameter an integer named n. The method will output n # of lines of stars. For example, the first line will have one star, the second line will have two stars, and so on.

The line number n will have "n" number of ****** (stars)

so if n is 3 it would print

*

**

***

The method must not have any loops!

Answer 1

public class PrintStars {
        public static void main(String[] args) {
                printPattern(3);

        }

        public static void printStars(int n) {
                if (n == 0)
                        return;
                else
                        System.out.print("*");
                printStars(n - 1);

        }

        public static void printPattern(int n) {
                if(n==0)
                        return;
                else {
                        printPattern(n-1);
                printStars(n);
                System.out.println();
                }
        }
}

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