Two labels and a solution-idea to show user the functions of new
buttons. @Sebi: The GUI isn't a gas factory, because a gas factory has
to be both by definition: Complex and a bad solution. Well, it's complex
and there's a overhead, cause there are GUI-Components and
GUI-Component-Controllers, BUT this is one of the BEST solutions to hide
methods and restrict the use of methods of a class. (And I exacly choose
which components could be used with which methods.) However, I agree,
that it's a workaround, caused by the JAVA-object-inheritance, which
disallows reducing the visability of methods.