Recursive Programming Problem

Write a JAVA program that repeatedly prompts your user for a number, uses a recursive function to calculate the product of that number times three (3), and displays the product. Select a sentinel value that allows your user to quit. Do NOT use the multiplication operator (*) in your proposed solution.

User Inputs	Recursive Function Returns
-2	-6
-1	-3
0	0
1	3
2	6
3	9
4	12

Hint: Think of multiplication as a series of additions.

User Inputs	Performs	Returns
1	3	3
2	3 + 3	6
3	3 + 3 + 3	9
4	3 + 3 + 3 + 3	12