Practice Instance Variables (1.3.b) - Chapter 7: Variables and Expressions

Practice: Instance Variables

Lesson 1.3.bVariables and Expressions

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9 questions

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6 sample questions

Question 1.
What are instance variables?
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Think about how objects can have unique properties.
Question 2.
Where should you declare instance variables?
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Remember the structure of a class.
3Question 3.
What are instance variables used for?
- To store class methods
- To maintain object state
- To define data types
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Think about what makes each object unique.
4Question 4.
True or False: Instance variables can be accessed directly from outside the class.
- True
- False
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Consider the protection principles of OOP.
Question 5.
Design a class 'Library' that has instance variables for 'bookTitle', 'author', and 'availability'. Create multiple instances of 'Library' with different values and display their properties.
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Consider creating multiple objects of Library with different book details.
Question 6.
Create a 'BankAccount' class with instance variables 'accountHolderName', 'accountNumber', and 'balance'. Include methods to deposit and withdraw, and track the balance accordingly.
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Think about how each instance holds individual account details.

5 more questions in this section. Enroll free to practise them all.