Check input character is alphabet, digit or special character

All characters whether alphabet, digit or special character have ASCII value. Input character from the user will determine if it’s Alphabet, Number or Special character.

ASCII value ranges-



  • For capital alphabets 65 – 90
  • For small alphabets 97 – 122
  • For digits 48 – 57

    • All other cases are Special Characters.

Examples :

Input : 8
Output : Digit

Input : E
Output : Alphabet


C++

filter_none

edit
close

play_arrow

link
brightness_4
code

// CPP program to find type of input character
#include <iostream>
using namespace std;
  
void charCheck(char input_char)
{
    // CHECKING FOR ALPHABET
    if ((input_char >= 65 && input_char <= 90)
        || (input_char >= 97 && input_char <= 122))
        cout << " Alphabet ";
  
    // CHECKING FOR DIGITS
    else if (input_char >= 48 && input_char <= 57)
        cout << " Digit ";
  
    // OTHERWISE SPECIAL CHARACTER
    else
        cout << " Special Character ";
}
  
// Driver Code
int main()
{
    char input_char = '$';
    charCheck(input_char);
    return 0;
}

chevron_right






                        filter_none









Java














                                    filter_none




                                    edit

                                    close




                                    play_arrow




                                    link

                                    brightness_4

                                    code
                                




















// Java program to find type of input character 


import java.io.*; 


  


class GFG { 


  


    static void charCheck(char input_char) 


    { 


        // CHECKING FOR ALPHABET 


        if ((input_char >= 65 && input_char <= 90) 


            || (input_char >= 97 && input_char <= 122)) 


            System.out.println(" Alphabet "); 


  


        // CHECKING FOR DIGITS 


        else if (input_char >= 48 && input_char <= 57) 


            System.out.println(" Digit "); 


  


        // OTHERWISE SPECIAL CHARACTER 


        else


            System.out.println(" Special Character "); 


    } 


  


    // Driver Code 


    public static void main(String[] args) 


    { 


        char input_char = '$'; 


        charCheck(input_char); 


    } 


} 


  


// This code is contributed by vt_m. 



















                        chevron_right







                        filter_none









Python3














                                    filter_none




                                    edit

                                    close




                                    play_arrow




                                    link

                                    brightness_4

                                    code
                                




















# python program to find type of  


# input character  


  


def charCheck(input_char):  


      


    # CHECKING FOR ALPHABET  


    if ((int(ord(input_char)) >= 65 and


        int(ord(input_char)) <= 90) or


        (int(ord(input_char)) >= 97 and


        int(ord(input_char)) <= 122)):  


        print( " Alphabet ")  


      


    # CHECKING FOR DIGITS  


    elif (int(ord(input_char)) >= 48 and


            int(ord(input_char)) <= 57):  


        print(" Digit ")  


  


    # OTHERWISE SPECIAL CHARACTER  


    else:  


        print(" Special Character ")  


  


# Driver Code  


input_char = '$'


charCheck(input_char)  


  


# This code is contributed by Sam007.  



















                        chevron_right







                        filter_none









C#














                                    filter_none




                                    edit

                                    close




                                    play_arrow




                                    link

                                    brightness_4

                                    code
                                




















// C# program to find type of 


// input character 


using System; 


  


class GFG { 


  


    // Function to check type 


    // of input character 


    static void charCheck(char input_char) 


    { 


        // Checking for Alphabet 


        if ((input_char >= 65 && input_char <= 90) 


            || (input_char >= 97 && input_char <= 122)) 


            Console.WriteLine(" Alphabet "); 


  


        // Checking for Digits 


        else if (input_char >= 48 && input_char <= 57) 


            Console.WriteLine(" Digit "); 


  


        // Otherwise Special Character 


        else


            Console.WriteLine("Special Character"); 


    } 


  


    // Driver Code 


    public static void Main() 


    { 


        char input_char = '$'; 


        charCheck(input_char); 


    } 


} 


  


// This code is contributed by vt_m. 



















                        chevron_right







                        filter_none









PHP














                                    filter_none




                                    edit

                                    close




                                    play_arrow




                                    link

                                    brightness_4

                                    code
                                




















<?php  


// PHP program to find type  


// of input character  


  


function charCheck($input_char)  


{  


    // CHECKING FOR ALPHABET  


    if (($input_char >= 65 && $input_char <= 90)  


        || ($input_char >= 97 && $input_char <= 122))  


        echo " Alphabet ";  


      


    // CHECKING FOR DIGITS  


    else if ($input_char >= 48 &&  


            $input_char <= 57)  


    echo " Digit ";  


  


    // OTHERWISE SPECIAL CHARACTER  


    else                                    


    echo " Special Character ";  


}  


  


// Driver Code  


$input_char = '$';  


charCheck($input_char);  


  


// This code is contributed by Sam007  


?>  



















                        chevron_right







                        filter_none










Output :


 Special Character 






    

        My Personal Notes
        arrow_drop_up
    

    

        
        

            
            
        

    


Recommended Posts:
mohitw16
Check out this Author's contributed articles.
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please Improve this article if you find anything incorrect by clicking on  the "Improve Article" button below.



					
		

    Article Tags : 
C++
School Programming

           	
Practice Tags : 
CPP

        

         

         
 
         
        Be the First to upvote.

                

        



        
        
        
        
        

    

            

            2.8
            

            

             
                 Based on 6 vote(s)
                    

            
            
            
            
            
        

        
        

        

        

        

        

        

        


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.