Queue

The application should manage a queue of people.

• It will prompt the user for a new name by printing :.
• The user can type in a name and press ENTER.
• The app will add the name to the queue.
• If the user types in "n" then the application will print the first name in the queue.

A sample interaction will look like this:

: Foo
: Bar
: Moo
: n
  next is Foo
: n
  next is Bar
: Peter
: n
  next is Moo
: n
  next is Peter
: n
  the queue is empty