Program to Check Vowel or Consonant Using Switch Case

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Program to Check Vowel or Consonant Using Switch Case
vinaykhatri

Vinay Khatri
Last updated on December 10, 2024

    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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