Below is a simple C program that checks whether an input character is a digit, alphabet, or a special character.
Program :
#include<stdio.h>
#include<conio.h>
int main()
{
char ch;
printf(“Enter any character: “);
scanf(“%c”,&ch);
if((ch>=’a’&&ch<=’z’)||(ch>=’A’&&ch<=’Z’))
{
printf(“‘%c’ is alphabet.”,ch);
}
else if(ch>=’0’&&ch<=’9′)
{
printf(“‘%c’ is digit.”,ch);
}
else
{
printf(“‘%c’ is special character.”,ch);
}
return 0;
}