Java Program to Count the Total Number of Vowels and Consonants in a String

// Java Program to Count Total Number of Vowels
// and Consonants in a String

// Importing all utility classes 
import java.util.*;

// Main class
class GFG {
  
     // Method 1
    // To prints number of vowels and consonants
    public static void count(String str)
    {
        // Initially initializing elements with zero
        // as till now we have not traversed  
        int vow = 0, con = 0;
      
        // Declaring a reference String
        // which contains all the vowels
        String ref = "aeiouAEIOU";
      
        for (int i = 0; i < str.length(); i++) {
            
            // Check for any special characters present 
            // in the given string
            if ((str.charAt(i) >= 'A'
                 && str.charAt(i) <= 'Z')
                || (str.charAt(i) >= 'a'
                    && str.charAt(i) <= 'z')) {
                if (ref.indexOf(str.charAt(i)) != -1)
                    vow++;
                else
                    con++;
            }
        }
      
        // Print and display number of vowels and consonants
        // on console 
        System.out.println("Number of Vowels = " + vow
                           + "\nNumber of Consonants = "
                           + con);
    }

    // Method 2
    // Main driver method 
    public static void main(String[] args)
    {
        // Custom string as input
        String str = "#GeeksforGeeks";
      
        // Calling the method 1 
        count(str);
    }
}