/* Chapter 9 - Program 2 - SINGLEIO.C */ #include "stdio.h" #include "conio.h" int main() { int c; printf("Enter any characters, terminate program with X\n"); do { c = _getch(); /* get a character */ putchar(c); /* display the hit key */ } while (c != 'X'); printf("\nEnd of program.\n"); return 0; } /* Result of execution Enter any characters, terminate program with X (The output depends on the characters you type in.) End of program. */