Write a program which contains a recursive function that accepts one integer argument n. This function should display n lines of asterisk (*) on the console, with the first line display 1 asterisk, second line display 2 asterisks, up to the nth line which shows n asterisks. The program will prompt the user to enter the number, validate the number to make sure it is not negative and pass the number to the recursive function. Create a main function to get user input and tests the recursive function.