Else ... If statements in C# .NET   << Continues from the
previous lesson  Instead of using just the else word, you can
use else if, instead. If we use our calculator as an example,
we'd want to do this:  bool plusButtonClicked = true; bool
minusButtonClicked = false;  if (plusButtonClicked = = true)
else if (minusButtonClicked = = true)    So the code checks to
see which button was clicked. If it's the Plus Button, then the
first IF Statement gets executed. If it's the Minus Button, then
the second IF Statement gets executed.  But else if is just the
same as if, but with the word else at the start.  In fact, we
can now add a minus button to our calculator. We'll use else if.
So open up your calculator project again. To do this, click the
link on the Start Page Tab in Visual Studio Express. If you
can't see your Start Page tab, click its icon at the top of the
C# software:  The Start Page shortcut icon  (In version 2012/13,
click View > Start Page from the menu at the top.)  You should
then see a section h