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Method overriding

Term Check Y11 OOP

Definition

A subclass supplies its own version of a method it inherited, replacing the parent's version; the way polymorphism is coded.

Example: Cat.speak() overrides Animal.speak().

Check this one: Not named in the syllabus; it is how polymorphism is shown in Python code.

Found in: school notes.

Where it is used in the test

Syllabus area: Y11 OOP.

Question types it can appear in

No past question in this bank is linked to this term yet. It can still be tested through the question types above.

Study links

How to use it in an answer

A model sentence

General advice, built from the definition and example above

“A subclass supplies its own version of a method it inherited, replacing the parent's version; the way polymorphism is coded.” Then apply it: Cat.speak() overrides Animal.speak().

In a short answer, give the definition in your own words first, then tie it to the situation in the question. Do not copy the example above unless it fits the scenario.

Technique for the question types

Common mistakes

Marker feedback on other questions of the same type (code and diagram feedback often applies across questions)
  • Check the sources: Not named in the syllabus; it is how polymorphism is shown in Python code.
  • Python questions (2025 HSC exam Q19): process string inputs; use a selection structure; code must execute in the environment; use correct indentation; call functions in the main program after defining them.
  • Python questions (2025 HSC exam Q26): replicate the grid; use the random library; use selection and looping to access the list; include a method of checking the number of values; use meaningful variable names and constants; avoid overly complex structures such as nested IF loops.
General advice
  • Use the term exactly as the syllabus words it, then link it to the scenario in the question; the 2025 feedback repeatedly rewards using the stimulus.
  • Answer the command word: outline gives main points only, explain gives a reason or cause, discuss gives both sides.

Same group in the syllabus: Object-oriented programming (OOP) · Class · Object · Attribute · Method · Constructor (__init__) · Encapsulation · Abstraction · Inheritance · Generalisation · Superclass and subclass · Polymorphism · Message passing · Procedural programming v OOP