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A-LevelComputer ScienceObject-Oriented ProgrammingOct/Nov 2022Paper 4 Q231 Marks

A computer game is being developed. The game has 10 different characters that are all active in the game. Part of the game is being written using object-oriented programming. The class Character stores data about the characters. Each character has a name and the x coordinate and y coordinate of their current position. Character Name : STRING stores the name of the character XCoordinate : INTEGER stores the x coordinate YCoordinate : INTEGER stores the y coordinate Constructor() initialises Name, XCoordinate and YCoordinate from the values passed as parameters GetName() returns the name of the character GetX() returns the x coordinate of the character GetY() returns the y coordinate of the character ChangePosition() takes XChange as an integer parameter and adds it to the x coordinate takes YChange as an integer parameter and adds it to the y coordinate

📋 Examiner Report & Trap Analysis

Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Computer Science Question

Topic

This structured question tests Object-Oriented Programming in A-Level Computer Science (syllabus code 9618). It is worth 31 marks.

Source

This question appeared in the Cambridge A-Level Computer Science Oct/Nov 2022 examination, Paper 4 Variant 2.

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