C Example for Beginners: C Program to Remove all Characters in a String Except Alphabets

Hits: 50

(C programming Example for Beginners)

C Program to Remove all Characters in a String Except Alphabets

In this example, you will learn to remove all the characters from a string entered by the user except the alphabets.


Remove Characters in String Except Alphabets


#include <stdio.h>
int main(){
   char line[150];
   
   printf("Enter a string: ");
   fgets(line, sizeof(line), stdin); // take input


   for (int i = 0, j; line[i] != ''; ++i) {

      // enter the loop if the character is not an alphabet
      // and not the null character
      while (!(line[i] >= 'a' && line[i] <= 'z') && !(line[i] >= 'A' && line[i] <= 'Z') && !(line[i] == '')) {
         for (j = i; line[j] != ''; ++j) {

            // if jth element of line is not an alphabet,
            // assign the value of (j+1)th element to the jth element
            line[j] = line[j + 1];
         }
         line[j] = '';
      }
   }
   printf("Output String: ");
   puts(line);
   return 0;
}

Output

Enter a string: p2'r-o@gram84iz./
Output String: programiz

This program takes a string input from the user and stores in the line variable. Then, a for loop is used to iterate over characters of the string.

C Example for Beginners: C Program to Remove all Characters in a String Except Alphabets

Sign up to get end-to-end “Learn By Coding” example.



Disclaimer: The information and code presented within this recipe/tutorial is only for educational and coaching purposes for beginners and developers. Anyone can practice and apply the recipe/tutorial presented here, but the reader is taking full responsibility for his/her actions. The author (content curator) of this recipe (code / program) has made every effort to ensure the accuracy of the information was correct at time of publication. The author (content curator) does not assume and hereby disclaims any liability to any party for any loss, damage, or disruption caused by errors or omissions, whether such errors or omissions result from accident, negligence, or any other cause. The information presented here could also be found in public knowledge domains.