VowelCounter.java

// WAP in Java to count the number of vowels in a string

import java.util.Scanner;

public class VowelCounter {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter a string: ");
        String str = sc.nextLine();

        int count = 0; // To store the number of vowels

        str = str.toLowerCase(); // Convert the string to lowercase to handle both uppercase and lowercase
                                 // letters

        for (int i = 0; i < str.length(); i++) { // Loop through each character of the string
            char ch = str.charAt(i); // Get the character at position i

            // Check if the character is a vowel
            if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') {
                count++;
            }
        }

        System.out.println("Number of vowels: " + count);

        sc.close(); // Close the Scanner (good practice)
    }
}