Ask for the answer to a yes-or-no question with a press of the Y or N key.
Either upper- or lowercase are accepted.
Ensure that the program responds properly when neither a Y nor N is pressed.
Use the || comparison twice. First for the Y key press and then for the N.
Use an if-else-if-else structure to handle all three variations.
#include <stdio.h> int main()/*w ww . j a v a 2 s . co m*/ { char yorn; printf("Do you want to continue (Y/N)? "); scanf("%c",&yorn); if( yorn == 'Y' || yorn == 'y' ) { puts("Continuing..."); } else if( yorn == 'N' || yorn == 'n' ) { puts("Stopping now."); } else { puts("You didn't type Y or N!"); } return(0); }