Assume the availability of a method named printStars that can be passed a non-negative integer n and print a line of n asterisks. Write a method named printTriangle that receives a non-negative integer n and prints a triangle of asterisks as follows: first a line of 1 asterisk, followed by a line of 2 asterisks, and then a line of 3 asterisks, and so on and finally a line of n asterisks. For example, if the method received 5 it would print:
* * *
* * * *
* * * * *
The method must not use a loop of any kind (for, while, do-while) to accomplish its job. The method should invoke printStars to accomplish the task of printing a single line.