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libby Moxey
03/12/2025
Computer Science
Object Oriented pseudocode exam questions and answers
146
•
3 Dec 2025
•
Object-oriented programming might seem complex, but it's actually a brilliant... Show more
You'll encounter plenty of object-oriented programming questions in your exams, and they're actually more straightforward than they look. The key is understanding that classes are like blueprints for creating objects.
Think of a class as a template - just like how architects use building plans to create different houses. Each class declaration contains attributes (the properties) and methods (the actions the object can perform).
Exam Tip: Always check your spelling carefully in pseudocode - marks are often lost for simple typos like "numberFl00" instead of "numberFloors"!
Let's break down a typical class building example that appears frequently in exams. You'll need to complete missing statements in class declarations - this tests whether you understand the basic structure.
The private attributes like numberFloors, width, and height store the object's data. Remember that private means only the class itself can directly access these values.
Public methods are your gateway to interact with the object. The new() procedure is the constructor - it sets up initial values when you create an object. Functions like getNumberFloors() retrieve data, whilst setNumberFloors() validates and updates it.
Quick Check: If a setter method needs to return
truefor successful changes andfalseotherwise, don't forget that validation step!
Inheritance is where object-oriented programming gets really powerful. When you write class house inherits building, you're saying that a house is a type of building with extra features.
The house class gets all the attributes and methods from building, plus its own specific ones like bedrooms and bathrooms. This saves you from rewriting common code.
Notice how the constructor works here - super.new() calls the parent class constructor first, then you add the house-specific setup. This pattern appears in loads of exam questions.
Memory Aid: Think "super" as calling up to the parent class - it handles the building basics before you add house-specific details.
Real programs need to store multiple objects, which is where array management comes in. The houseRoad class demonstrates how to store objects in arrays properly.
The newBuilding() method shows a classic pattern - use an index variable (numberBuildings) to track where the next object should go. Then increment that counter after adding the object.
When creating objects, you'll often see questions asking you to declare objects and add them to collections. The syntax limeAvenue = new houseRoad() creates the container, then methods like newBuilding() populate it.
Exam Success: Always increment your counter after adding to arrays - forgetting this step means objects will overwrite each other!
The constructor method serves one crucial purpose - to create an object from a class. This simple definition is worth remembering because it's a common short-answer question.
Complex class hierarchies like building, office, and house show how object-oriented design mirrors real-world relationships. Each subclass inherits common building features whilst adding specific attributes.
Understanding these relationships helps you tackle inheritance questions confidently. Whether it's numDesks for offices or bedrooms for houses, each class extends the base building concept logically.
Final Tip: Constructors always have the same job regardless of the class - they initialize objects with starting values and set up the object's initial state.
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
You can download the app from Google Play Store and Apple App Store.
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
Object-oriented programming might seem complex, but it's actually a brilliant way to organize code by mimicking real-world relationships. These exam examples show you exactly how to create classes, use inheritance, and write methods that examiners love to see.
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You'll encounter plenty of object-oriented programming questions in your exams, and they're actually more straightforward than they look. The key is understanding that classes are like blueprints for creating objects.
Think of a class as a template - just like how architects use building plans to create different houses. Each class declaration contains attributes (the properties) and methods (the actions the object can perform).
Exam Tip: Always check your spelling carefully in pseudocode - marks are often lost for simple typos like "numberFl00" instead of "numberFloors"!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Let's break down a typical class building example that appears frequently in exams. You'll need to complete missing statements in class declarations - this tests whether you understand the basic structure.
The private attributes like numberFloors, width, and height store the object's data. Remember that private means only the class itself can directly access these values.
Public methods are your gateway to interact with the object. The new() procedure is the constructor - it sets up initial values when you create an object. Functions like getNumberFloors() retrieve data, whilst setNumberFloors() validates and updates it.
Quick Check: If a setter method needs to return
truefor successful changes andfalseotherwise, don't forget that validation step!
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Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Inheritance is where object-oriented programming gets really powerful. When you write class house inherits building, you're saying that a house is a type of building with extra features.
The house class gets all the attributes and methods from building, plus its own specific ones like bedrooms and bathrooms. This saves you from rewriting common code.
Notice how the constructor works here - super.new() calls the parent class constructor first, then you add the house-specific setup. This pattern appears in loads of exam questions.
Memory Aid: Think "super" as calling up to the parent class - it handles the building basics before you add house-specific details.
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Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Real programs need to store multiple objects, which is where array management comes in. The houseRoad class demonstrates how to store objects in arrays properly.
The newBuilding() method shows a classic pattern - use an index variable (numberBuildings) to track where the next object should go. Then increment that counter after adding the object.
When creating objects, you'll often see questions asking you to declare objects and add them to collections. The syntax limeAvenue = new houseRoad() creates the container, then methods like newBuilding() populate it.
Exam Success: Always increment your counter after adding to arrays - forgetting this step means objects will overwrite each other!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
The constructor method serves one crucial purpose - to create an object from a class. This simple definition is worth remembering because it's a common short-answer question.
Complex class hierarchies like building, office, and house show how object-oriented design mirrors real-world relationships. Each subclass inherits common building features whilst adding specific attributes.
Understanding these relationships helps you tackle inheritance questions confidently. Whether it's numDesks for offices or bedrooms for houses, each class extends the base building concept logically.
Final Tip: Constructors always have the same job regardless of the class - they initialize objects with starting values and set up the object's initial state.
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
You can download the app from Google Play Store and Apple App Store.
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
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Transform this note into: ✓ 50+ Practice Questions ✓ Interactive Flashcards ✓ Full Mock Exam ✓ Essay Outlines
Quotes from every main character
English LiteratureApp Store
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
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