C++ String Exercises: Count all the vowels in a given string

Last update on December 20 2024 12:32:33 (UTC/GMT +8 hours)

Write a C++ program to count all the vowels in a given string.

Visual Presentation:

C++ Exercises: Count all the vowels in a given string

Sample Solution:

C++ Code :

#include <iostream> // Including input/output stream library

using namespace std; // Using the standard namespace

// Function to count the number of vowels in a string
int Vowel_Count(string text) {
    int ctr = 0; // Initializing a counter variable to count vowels

    // Loop through the string and count vowels (both lowercase and uppercase)
    for (int i = 0; i < int(text.size()); i++) {
        // Checking for lowercase vowels
        if (text[i] == 'a' || text[i] == 'e' || text[i] == 'i' || text[i] == 'o' || text[i] == 'u')
            ++ctr; // Increment the counter if a lowercase vowel is found

        // Checking for uppercase vowels
        if (text[i] == 'A' || text[i] == 'E' || text[i] == 'I' || text[i] == 'O' || text[i] == 'U')
            ++ctr; // Increment the counter if an uppercase vowel is found
    }
    return ctr; // Return the total count of vowels in the string
}

// Main function
int main() {
    // Checking the count of vowels in different strings and displaying the result
    cout << "Original string: eagerer, number of vowels -> " << Vowel_Count("eagerer") << endl;
    cout << "\nOriginal string: eaglets, number of vowels -> " << Vowel_Count("eaglets") << endl;
    cout << "\nOriginal string: w3resource, number of vowels -> " << Vowel_Count("w3resource") << endl;
    cout << "\nOriginal string: After eagling the Road Hole on Thursday, he missed an 8-footer for birdie Friday., number of vowels -> ";
    cout << Vowel_Count("After eagling the Road Hole on Thursday, he missed an 8-footer for birdie Friday.") << endl;
    return 0; // Return 0 to indicate successful completion
}

Sample Output:

Original string: eagerer, number of vowels -> 4

Original string: eaglets, number of vowels -> 3

Original string: w3resource, number of vowels -> 4

Flowchart:

C++ Code Editor:

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