OCR A-level Computer Science Paper 2 (H446/02) - 19th June 2023 [Exam Chat]

Ran through a few past papers (seems to be the best method for revising it).
All paper 2s have 2 sections, one for procedural programming, one for OOP.
Within the procedural, there is likely to be sorting methods, traversing, adding and removing from data structures, and possibly big o notation.
Within the OOP, its general OOP stuff, such as classes, creating constructors, etcetera.
Plus, data mining likes to pop up a lot, so best look into that a bit.

You're a gem. I was thinking that it's unlikely for depth-first traversal to come up since I've seen a couple of questions on it.

It's still best to revise it, as it may come up as an explanation or demonstrate question - that and the breadth first.

oh yes ofc but they're very simple questions, especially when they give a diagram

Feeling sad about computer science. Anyone else have any tips on how to get good on binary stuff? The craig and dave video's are so boring.

Do you guys think that OOP is likely to come up on this paper as it didnt come up on paper 1 which i thought was quite strange. Idk i have a feeling theres gonna be a lot of pseudocode on this paper tbh.

I hope so i put in a lot of practice for OOP before the last paper lol.

What are the best topics to revise for paper 2??????

Hopefully not OOP

Doesn't OOP come up as section B every year?!😖

Do you guys think that OOP is likely to come up on this paper as it didnt come up on paper 1 which i thought was quite strange. Idk i have a feeling theres gonna be a lot of pseudocode on this paper tbh.

I don't think there were any questions on the software development cycle so that will probably come up

For OOP, as long as you know the basics, you should be able to get at least something. I've been struggling on it for a while, but I have got so far...

Definitions:
- Class: a template to create an object, outlining the states and behaviours.
- Object: an instance of a class, with assigned states and behaviours.
- Attribute: the states of an object.
- Methods: the behaviours of an object.
- Instantiation: creating an object from a class.
- Encapsulation: making attributes private, so they cannot be directly accessed or modified without a given public method.
- Inheritance: creating a class template from another class, of which includes the same methods and attributes, but may have additional of its own (the subclass takes priority and overwrites the superclass).
- Polymorphism: methods that produce different outcomes, depending on the class it is used on, or how it is used.

Basic Code:
class className
private attribute1
private attribute2

public procedure new(givenAttribute1,givenAttribute2)
attribute1 = givenAttribute1
attribute2 = givenAttribute2
endprocedure

public function set_attribute()
attribute1 = newValue
endfunction
endclass

Create an object code:
newObject = new className ("attribute1 value", "attribute 2 value")

Does anyone know if paper 1 topics come up on paper 2? If so which ones