x1: 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, inmain()function, and pass the value to...

x1: 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, inmain()function, and pass the value to theisVowel()function.isVowel()function checks if the character is a vowel or not and updates themain()function using a “by Reference” parameter, not by returning a value. Print whether the character entered by the user is a vowel or not, in themain()function.

Ex2: Write a program that uses a function,reverseDigit, that takes an integer as a parameter and returns the number with its digits reversed. For example, the value ofreverseDigit(12345)is54321; the value ofreverseDigit(5600)is65; the value ofreverseDigit(7008)is8007.

Ex3: Modify the program you wrote in Ex2 by making the return type ofreverseDigitfunctionvoidfor the same output. Do not print the result inside thereverseDigitfunction. The functionreverseDigitcan no longer return a value. You will need to use a “by Reference” parameter to update the main function accordingly.

Hint:This is how you can separate digits from an integer: If the number is 2345, you can use the % operator to separate the right most digit by 2345 % 10 which will give you 5. Then divide the num by 10 (decimal) and you will be left with 234. Repeat.