How to Remove Special Characters from a String in C - Step by Step Examples

How to Remove Special Characters from a String in C ?

Answer

To remove special characters from a string in C, you can use a loop to iterate through each character and remove the special characters.

✐ Examples

1 Remove Special Characters from "Hello! World!"

In this example,

We create a character array str1 with a value of "Hello! World!".
We iterate through each character in str1 and check if it is an alphanumeric character or a space.
If the character is alphanumeric or a space, we add it to a new string result.
Finally, we print the modified string result.

C Program

#include <stdio.h>
#include <ctype.h>

int main() {
    char str1[] = "Hello! World!";
    char result[100];
    int j = 0;

    for (int i = 0; str1[i] != '\0'; i++) {
        if (isalnum(str1[i]) || isspace(str1[i])) {
            result[j++] = str1[i];
        }
    }
    result[j] = '\0';

    printf("Modified string: %s\n", result);
    return 0;
}

Output

Modified string: Hello World

2 Remove Special Characters from "apple@banana"

In this example,

We create a character array str2 with a value of "apple@banana".
We iterate through each character in str2 and check if it is an alphanumeric character or a space.
If the character is alphanumeric or a space, we add it to a new string result.
Finally, we print the modified string result.

C Program

#include <stdio.h>
#include <ctype.h>

int main() {
    char str2[] = "apple@banana";
    char result[100];
    int j = 0;

    for (int i = 0; str2[i] != '\0'; i++) {
        if (isalnum(str2[i]) || isspace(str2[i])) {
            result[j++] = str2[i];
        }
    }
    result[j] = '\0';

    printf("Modified string: %s\n", result);
    return 0;
}

Output

Modified string: applebanana

Summary

In this tutorial, we learned How to Remove Special Characters from a String in C language with well detailed examples.

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How to Remove Special Characters from a String in C - Step by Step Examples

How to Remove Special Characters from a String in C ?

Answer

✐ Examples

1 Remove Special Characters from "Hello! World!"

C Program

Output

2 Remove Special Characters from "apple@banana"

C Program

Output

Summary

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