Java

*4.13 (Vowel or consonant?) Write a program that prompts the user to enter a letter and check whether the letter is a vowel or consonant. Name it VowelConsonant. Run the program with different input values. Document the code and follow the output model shown (which show both uppercase and lowercase letters as input). The exercise is intended to familiarize the student with the static methods from the Java library class Character. The only instance method from the Java library class String that is allowed to be used in this program is .charAt().) Here is a sample run:

Enter a letter: B B is a consonant

Enter a letter grade: a a is a vowel

Enter a letter grade: # # is an invalid input