Program to count vowels, consonant, digits and special characters in string.

0 0 5 minutes read

Given a string and the task is to count vowels, consonant, digits and special character in string. Special character also contains the white space.
Examples:

Input : str = "zambiatek for zambiatek121"
Output : Vowels: 5
         Consonant: 8
         Digit: 3
         Special Character: 2

Input : str = " A1 B@ d  adc"
Output : Vowels: 2
         Consonant: 4
         Digit: 1
         Special Character: 6

C++

// Program to count vowels, consonant, digits and  
// special character in a given string. 
#include <bits/stdc++.h> 
using namespace std; 
  
// Function to count number of vowels, consonant,   
// digitsand special character in a string. 
void countCharacterType(string str) 
{ 
    // Declare the variable vowels, consonant, digit 
    // and special characters 
    int vowels = 0, consonant = 0, specialChar = 0,  
        digit = 0; 
  
    // str.length() function to count number of 
    // character in given string. 
    for (int i = 0; i < str.length(); i++) { 
           
        char ch = str[i]; 
  
        if ( (ch >= 'a' && ch <= 'z') ||  
              (ch >= 'A' && ch <= 'Z') ) { 
  
            // To handle upper case letters 
            ch = tolower(ch); 
  
            if (ch == 'a' || ch == 'e' || ch == 'i' || 
                ch == 'o' || ch == 'u') 
                vowels++; 
            else
                consonant++; 
        } 
        else if (ch >= '0' && ch <= '9') 
            digit++; 
        else
            specialChar++; 
    } 
    cout << "Vowels: " << vowels << endl; 
    cout << "Consonant: " << consonant << endl; 
    cout << "Digit: " << digit << endl; 
    cout << "Special Character: " << specialChar << endl; 
} 
  
// Driver function. 
int main() 
{ 
    string str = "zambiatek for zambiatek121"; 
    countCharacterType(str); 
    return 0; 
} 

Java

// Java Program to count vowels, consonant, digits and  
// special character in a given string 
import java.io.*; 
  
public class GFG { 
  
    // Function to count number of vowels, consonant,  
    // digitsand special character in a string. 
    static void countCharacterType(String str) 
    { 
        // Declare the variable vowels, consonant, digit 
        // and special characters 
        int vowels = 0, consonant = 0, specialChar = 0,  
            digit = 0; 
      
        // str.length() function to count number of 
        // character in given string. 
        for (int i = 0; i < str.length(); i++) { 
              
            char ch = str.charAt(i); 
      
            if ( (ch >= 'a' && ch <= 'z') ||  
                (ch >= 'A' && ch <= 'Z') ) { 
      
                // To handle upper case letters 
                ch = Character.toLowerCase(ch); 
      
                if (ch == 'a' || ch == 'e' || ch == 'i' || 
                    ch == 'o' || ch == 'u') 
                    vowels++; 
                else
                    consonant++; 
            } 
            else if (ch >= '0' && ch <= '9') 
                digit++; 
            else
                specialChar++; 
        } 
          
        System.out.println("Vowels: " + vowels); 
        System.out.println("Consonant: " + consonant); 
        System.out.println("Digit: " + digit); 
        System.out.println("Special Character: " + specialChar); 
    } 
      
    // Driver function. 
    static public void main (String[] args) 
    { 
        String str = "zambiatek for zambiatek121"; 
          
        countCharacterType(str); 
    } 
} 
  
// This code is contributed by vt_m. 

Python3

# Python3 Program to count vowels, 
# consonant, digits and special  
# character in a given string. 
  
# Function to count number of vowels, 
# consonant, digits and special  
# character in a string. 
def countCharacterType(str): 
  
    # Declare the variable vowels,  
    # consonant, digit and special 
    # characters 
    vowels = 0
    consonant = 0
    specialChar = 0
    digit = 0
  
    # str.length() function to count  
    # number of character in given string. 
    for i in range(0, len(str)):  
          
        ch = str[i]  
  
        if ( (ch >= 'a' and ch <= 'z') or 
             (ch >= 'A' and ch <= 'Z') ):  
  
            # To handle upper case letters 
            ch = ch.lower() 
  
            if (ch == 'a' or ch == 'e' or ch == 'i' 
                        or ch == 'o' or ch == 'u'): 
                vowels += 1
            else: 
                consonant += 1
          
        elif (ch >= '0' and ch <= '9'): 
            digit += 1
        else: 
            specialChar += 1
      
    print("Vowels:", vowels) 
    print("Consonant:", consonant)  
    print("Digit:", digit)  
    print("Special Character:", specialChar)  
  
  
# Driver function. 
str = "zambiatek for zambiatek121"
countCharacterType(str)  
  
# This code is contributed by 
# Smitha Dinesh Semwal 

C#

// Program to count vowels, consonant, 
// digits and special character in  
// a given string 
using System; 
using System.Globalization; 
  
class GFG { 
  
    // Function to count number of  
    // vowels, consonant, digitsand  
    // special character in a string. 
    static void countCharacterType(string str) 
    { 
        // Declare the variable vowels, consonant, 
        // digit and special characters 
        int vowels = 0, consonant = 0,  
        specialChar = 0, digit = 0; 
  
        // str.length() function to count number of 
        // character in given string. 
        for (int i = 0; i < str.Length; i++) { 
  
            char ch = str[i]; 
  
            if ((ch >= 'a' && ch <= 'z') ||  
                (ch >= 'A' && ch <= 'Z')) { 
  
                // To handle upper case letters 
                ch = char.ToLower(ch); 
  
                if (ch == 'a' || ch == 'e' || ch == 'i' || 
                    ch == 'o' || ch == 'u') 
                    vowels++; 
                else
                    consonant++; 
            } 
            else if (ch >= '0' && ch <= '9') 
                digit++; 
            else
                specialChar++; 
        } 
        Console.WriteLine("Vowels: " + vowels); 
        Console.WriteLine("Consonant: " + consonant); 
        Console.WriteLine("Digit: " + digit); 
        Console.WriteLine("Special Character: " + specialChar); 
    } 
  
    // Driver function. 
    static public void Main() 
    { 
        string str = "zambiatek for zambiatek121"; 
        countCharacterType(str); 
    } 
} 
  
// This code is contributed by vt_m. 

Javascript

<script> 
  
      // Program to count vowels, consonant,  
      // digits and 
      // special character in a given string. 
  
      // Function to count number of vowels, consonant, 
      // digitsand special character in a string. 
      function countCharacterType(str) { 
        // Declare the variable vowels,  
        // consonant, digit 
        // and special characters 
        var vowels = 0, 
          consonant = 0, 
          specialChar = 0, 
          digit = 0; 
  
        // str.length() function to count number of 
        // character in given string. 
        for (var i = 0; i < str.length; i++) { 
          var ch = str[i]; 
  
          if ((ch >= "a" && ch <= "z") || 
          (ch >= "A" && ch <= "Z")) { 
            // To handle upper case letters 
            ch = ch.toLowerCase(); 
  
            if (ch == "a" || ch == "e" || ch == "i" || 
            ch == "o" || ch == "u") 
              vowels++; 
            else consonant++; 
          } else if (ch >= "0" && ch <= "9") digit++; 
          else specialChar++; 
        } 
        document.write("Vowels: " + vowels + "<br>"); 
        document.write("Consonant: " + consonant + "<br>"); 
        document.write("Digit: " + digit + "<br>"); 
        document.write("Special Character: " + specialChar + "<br>"); 
      } 
  
      // Driver function. 
      var str = "zambiatek for zambiatek121"; 
      countCharacterType(str); 
        
</script>

Output:

Vowels: 5
Consonant: 8
Digit: 3
Special Character: 2

Time Complexity: O(N)

Auxiliary Space: O(1)

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