/* This program is a fun demonstration of the for loop. */
#include <stdio.h> /* you need this to get anything running in C */
#include <stdlib.h> /* need this for the system("PAUSE"); */
#include <conio.h> /* for the getch(); function performing
keyboard input and output */
#include <ctype.h> /* for the toupper(); character conversion function */
int main()
{
int x = 100; /* Naturally, we start with 100 bottles of beer. */
char c;
while (x != 0)
{
--x; /* decrement the counter */
/* Now x is one less than
the previous initialization. */
printf("%d bottles of beer on the wall!\n", x);
printf("%d bottles of BEER!!\n", x);
printf("Take one down, pass it around --\n");
printf("%d bottles of beer on the wall!!\n", x);
printf("Do you want another beer?\n");
printf("\n\nPress Y for another, N to stop the madness:\n");
c = toupper(getch()); /* get key */
/* This is where both conio.h and
ctype.h come in to play */
if (c == 'Y')
{
putchar(c);
printf("\n"); /* display char */
continue; /* another beer coming up! */
}
if (c == 'N')
{
printf("No more beer for you!!\n");
break; /* stops the madness */
}
if ( x = 1)
/* If you've stuck with it this long,
you deserve one. */
{
printf("Time to buy more beer!!\n");
}
}
system("PAUSE");
return 0;
}
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