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Item 128 of 426 · Year 11: The Object-Oriented Paradigm, 13 of 33
Message passing
Term
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- Exam format, question types and command words (46)
- Year 11: Programming Fundamentals (69)
- Year 11: The Object-Oriented Paradigm (33)
- Year 11: Programming Mechatronics (29)
- Year 12: Secure Software Architecture (57)
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Definition
Objects communicate by calling each other's methods (sending a message with parameters and receiving a return value).
Example: order.addItem(item) sends the message addItem to the order object.
Found in: syllabus, course specifications.
Where you'll use it in the test
Syllabus area: Y11 OOP.
Question types it can appear in
- Multiple choice: Pick the option that matches the definition or example.
- Short answer: Investigate how OOP languages handle message passing
- Code reading: Code or algorithm reading: interpret a fragment and state its output or purpose.
How to use it
A model sentence
“Objects communicate by calling each other's methods (sending a message with parameters and receiving a return value).” Then apply it: order.addItem(item) sends the message addItem to the order object.
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.
Command words used with it
No linked question shows the command word for this term. Across the past short answer questions in this bank the words used most are: Explain, Outline, Describe, Compare, Classify, Analyse. Check the actual word in your question.
Go deeper
- Flashcard: Message passing in The Object-Oriented Paradigm (Year 11) · study that set
- Memorise: Object-oriented concepts
- Notes: Programming paradigms (Year 11 content (Programming fundamentals, OOP, Mechatronics))
- Notes: Object-oriented concepts (Year 11 content (Programming fundamentals, OOP, Mechatronics))
- Notes: Python OOP: classes, inheritance, polymorphism, encapsulation (Python and SQL you must be able to write)
- Full term page: every question, note and marking comment for Message passing
Check yourself
Explain “Message passing” in one sentence, give an example, and name a question type that could test it.
Reveal the answer
Objects communicate by calling each other's methods (sending a message with parameters and receiving a return value).
Example: order.addItem(item) sends the message addItem to the order object.
Could be tested as: Multiple choice, Short answer, Code reading.