C

C Program to Check Whether Character is Lowercase or Not using ASCII Values

#include <stdio.h>

int main()
{
  char Ch;
  
  printf("
 Please Enter any character
");
  scanf("%c", &Ch);

  if (Ch >= 97 && Ch <= 122)
   {  
     printf ( "
Entered character is lowercase alphabet") ;
   }
  else
   {
     printf("
Entered character is Not lowercase alphabet");
   }  
}

C Program to Check Whether Character is Lowercase or Not using islower function

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

int main()
{
  char Ch;
 
  printf("
 Please Enter any alphabet
");
  scanf("%c", &Ch);

  if ( islower(Ch) )
   {  
     printf ("
 Entered character is lowercase alphabet");
   }
  else
   {
     printf("
 Entered character is Not lowercase alphabet");
   }  
}

c check if character is lower case

char ch = 'z';
if(islower(ch))
    printf("Lower case");     
else
    printf("upper case");
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