getch() getchar() no need 4 fflush?

Hi Im new here and just learning C. Im using VTC video tutorials. The guy on it is saying that I have to put in fflush(stdin); to keep the window open so it dosent automatically close.
here is the code I was supposed to put it into.

Code:

main()
{
      short age;
      printf ("How old are you: ");
      scanf ("%d", &age);
      printf ("The age you have entered is %d\n", age);
      getchar();
      
}

I was supposed to put it above getchar();
But I put getch(); and it didnt close the window, so is getch();
an exceptable replacement for using fflush(stdin); ?

> The guy on it is saying that I have to put in fflush(stdin);
Great, another "teacher" selling snake oil.

Read
http://faq.cprogramming.com/cgi-bin/...&id=1043284351

Also
http://faq.cprogramming.com/cgi-bin/...&id=1043284385
http://faq.cprogramming.com/cgi-bin/...&id=1043284385


Your scanf() call is wrong as well, %d is for reading ints, not shorts.

No its not that I dont trust him. I saw someone using getch();
So I thought it was short for getchar(); and tried using it and the window stayed up. When I used getchar(); the window closed. Also the short was int I was just trying something else there.

I just thought I found another way to do the same thing is all. :\

getch() is specific to your compiler
getchar() is standard.

The two 'streams' do not have to be synchronised, so doing
c1 = getchar();
c2 = getch();
Is not guaranteed to produce the effect of making c1='h' and c2='e' if you type in "hello"