C Programming: Check whether a character is Hexadecimal Digit or not

C String: Exercise-23 with Solution

Write a program in C to check whether a character is Hexadecimal Digit or not.

Sample Solution:

C Code:

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


int main()
{
	char TestChar;
	printf("\n Check whether a character is Hexadecimal Digit or not :\n");  
    printf("-------------------------------------------------------\n");      
    printf(" Input a character : "); // Hexadecimal Digits are a-f, A-F or 0-9
    scanf( "%c", &TestChar );
	if( isxdigit(TestChar) )
		printf( " The entered character is a hexadecimal digit. \n" );
	else
		printf( " The entered character is not a hexadecimal digit. \n" );
	return 0;
}

Sample Output:

 Check whether a character is Hexadecimal Digit or not :
-------------------------------------------------------
 Input a character : 7
 The entered character is a hexadecimal digit.

Flowchart :

C Programming Code Editor:

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