C examples for Data Type:char
Convert any uppercase letter that is lowercase
#include <stdio.h> int main(void){ char letter = 0; // Stores a character printf("Enter an uppercase letter:"); // Prompt for input scanf("%c", &letter); // Read a character // Check whether the input is uppercase if(letter >= 'A') // Is it A or greater? if(letter <= 'Z') // and is it Z or lower? { // It is uppercase letter = letter - 'A' + 'a'; // Convert from upper- to lowercase printf("You entered an uppercase %c\n", letter); }// w w w .j a va 2s. c o m else // It is not an uppercase letter printf("Try using the shift key! I want a capital letter.\n"); return 0; }