Question

I am having trouble understanding why in this code snippet the “Hello” statement is not
being printed. I thought that the condition statement in the for loop starts getting tested after only at the second iteration.

  for ( count = 0; count < 0; ++count)
    {
  cout<<"Hello!\n";     
    }

Answer 1

It never enters the loop at all because for loops are tested at the start.

You start with count = 0, but the loop condition is count < 0. So it fails right away and skips the entire loop.

do-while loops are the ones that are tested at the end of the iteration.