Program to Check Vowel or Consonant Using Switch Case

Problem Statement

Here, we have a problem statement where we need to write a script or program in C++, C, and Python that checks whether a user-entered character or alphabet is a vowel.

For example

Input:
a
Output
It is a Vowel

Switch case is a programming syntax that provides an alternative elegant way to represent conditional base statements in programming languages. Mostly all the popular programming languages support switch-case statements.

Let us now implement the switch case statement to check whether a letter is a vowel or not in different programming languages.

C Program to Check Vowel or Consonant Using Switch Case

#include <stdio.h>
int main()
{	
	char chr;
	
	//input chracter
	printf("Enter the Alphabet: ");
	scanf("%c", &chr);
	
	switch(chr)
            {
                case 'a':
                case 'A':

                case 'e':
                case 'E':

                case 'i':
                case 'I':

                case 'o':
                case 'O':

                case 'u':
                case 'U':
                	printf("----------------It is a Vowel-------------");
               		break;
                default:
                	printf("++++++++++++++It is not a Vowel+++++++++++");
       		 }
	
	return 0;
}

Output

Enter the Alphabet: B
++++++++++++++It is not a Vowel+++++++++++

C++ Program to Check Vowel or Consonant Using Switch Case

#include<iostream>
using namespace std;
int main()
{
	char chr;
    cout<<"Enter an Alphabet: "; cin>>chr;

    switch(chr)
                {
                case 'a':
                case 'A':

                case 'e':
                case 'E':

                case 'i':
                case 'I':

                case 'o':
                case 'O':

                case 'u':
                case 'U':
                cout<<"----------------It is a Vowel-------------";
                break;
                default:
                cout<<"++++++++++++++It is not a Vowel+++++++++++";
        }
	
	return 0;
}

Output:

Enter an Alphabet: A

----------------It is a Vowel------------

Python Program to Check Vowel or Consonant Using Switch Case

Unfortunately, Python 3.9 and older versions do not support the switch-case statement. So, instead of the switch case, we can use Python if..else statements.

Without Switch Case

# input alphabet
char = input("Enter an Alphabet: ")

# check for the VOWEL
if char in 'aeiouAEIOU':
    print("----------------It is a Vowel-------------")
else:
    print("++++++++++++++It is not a Vowel+++++++++++")

Output

Enter an Alphabet: I
----------------It is a Vowel-------------

With Switch Case

Python 3.10 introduced the feature of a switch case called structural pattern matching .

Let us use it to implement the same program.

char = input("Enter an Alphabet: ")

def is_vowel(char):
    vowels = ['A', 'a', 'E', 'e', 'I', 'i', 'O', 'o', 'U', 'u']

    if char in vowels:
        return "----------------It is a Vowel-------------"
    else:
        return "++++++++++++++It is not a Vowel+++++++++++"

result = is_vowel(char)
print(result)

Output

Enter an Alphabet: A
----------------It is a Vowel-------------

Java Program to Check Vowel or Consonant Using Switch Case

import java.util.*;
class Main
{
    public static void main(String[] args) 
    {
	    char chr;
	    Scanner sc = new Scanner(System.in);
        System.out.print("Enter an Alphabet: ");
        chr = sc.next().charAt(0);

        switch(chr)
            {
                case 'a':
                case 'A':

                case 'e':
                case 'E':

                case 'i':
                case 'I':

                case 'o':
                case 'O':

                case 'u':
                case 'U':
                System.out.println("----------------It is a Vowel-------------");
                break;
                default:
                System.out.println("++++++++++++++It is not a Vowel+++++++++++");
            }
    }
}

Output

Enter an Alphabet: r
++++++++++++++It is not a Vowel+++++++++++

Wrapping Up!

Writing a program to check if the user-entered character is an alphabet or not is a trivial task. In the above tutorial, we have demonstrated how you can do it using C and C++ switch-case statements to solve the problem.

This program is a good example to learn about the switch statement.

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