Char: Converting uppercase to lowercase : Char « Data Type « C / ANSI-C

1. C / ANSI-C
2. Data Type
3. Char

Char: Converting uppercase to lowercase

/* Char: Converting uppercase to lowercase */
#include <stdio.h>

void main()
{
   char letter = 0;                         /* Stores a character */

   printf("Enter an uppercase letter:");  
   scanf("%c", &letter);                    /* Read a character   */

   /* Check whether the input is uppercase*/
   if(letter >= 'A')                    /* Is is A or greater?   */
     if (letter <= 'Z')                 /* and is it Z or lower? */
     {                                  /* It is upper case      */
       letter = letter - 'A'+ 'a';      /* Convert from upper to lower case */
       printf("An uppercase %c\n", letter);
     }
     else                               /* It is not an upper case letter */
       printf("A capital letter please.\n");
}


           
       

Related examples in the same category

1.	Encrypting a password
2.	Char: to upper case
3.	Characters and numbers: output
4.	Use data type: char
5.	Char to lower case
6.	maximum and minimum value of char
7.	Get char and change it to float
8.	Double check before erasing
9.	Assing int value to a char type variable
10.	Output char to the console
11.	For loop with char as the loop condition