Please write this Java program as simple as possible and with comments throughout explaining what is happening. Thank you!

(Vowel or consonant?) Write a program that prompts the user to enter a letter and check whether the leter is a vowel or comstr i snple run. *4.13 Enter a letter: B Enter B is a consonant Enter a letter grade: a Enter a is a vowel Enter a letter grade : # Enter # is an invalid input