Ex: Write a program that uses a void function - a function that does not return a value. Call this function "isvowel)". Take a character input from user, in main () function, and pass the value to the isvowel () function. isVowel () function checks if the character is a vowel or not and updates the main () function using a "by Ref" parameter, not by returning a value Print whether the character entered by the user is a vowel or not, in the main () function