I want to use getchar function in my c program but i dont know how to use...please help, thanks

Question

i would like to use it in decision making,in asking yes or no..

Answer 1

Here is an example program on how to ask the user with getchar:

#include <stdio.h>

int main() {

int retry;

int key;



do {

retry = 0;

printf("Shall I say hello (y/n)? ");

key = getchar();

switch(key) {

case 'y':

printf("Hello!\n");

break;

case 'n':

break;

default:

retry = 1;

printf("Please enter y or n!\n");

}

} while(retry == 1);



return 0;

}