Character entered is a small case alphabet or upper case

 

#include<stdio.h> 

#include<conio.h>

int main() 

{ 

           char ch; 

           clrscr ();

printf("Enter any character: ");

 scanf("%c", &ch); 

if(ch >= 'A' && ch <= 'Z') 

 printf("'%c' is uppercase alphabet.", ch);

 

else 

printf("'%c' is lowercase alphabet.", ch);

 

 getch ();

}

Output 1:

Enter any character: r

'r' is lowercase alphabet.

[Process completed - press Enter]

Output 2:

Enter any character: R

'R' is uppercase alphabet.

[Process completed - press Enter]