I have no idea what any of that means, LOL.
It’s a program I copied and pasted but looking at it I’m not sure it does anything useful at all!
Basic is a good language to start with because you can easily learn the principles of programming like program flow, input output, if-then-else statements, etc.
90 END mean "That's it, there is no more". For the rest of it, someone else will have to help you. That's as far as I could get :>
Well, allow me to explain:
Class-based object-oriented languages, such as Java and C++, are founded on the concept of two distinct entities: classes and instances.
A class defines all of the properties (considering methods and fields in Java, or members in C++, to be properties) that characterize a certain set of objects. A class is an abstract thing, rather than any particular member of the set of objects it describes. For example, the Employee class could represent the set of all employees. An instance, on the other hand, is the instantiation of a class; that is, one of its members. For example, Victoria could be an instance of the Employee class, representing a particular individual as an employee. An instance has exactly the properties of its parent class (no more, no less).