Practice Reference Variables (5.5) - Chapter 5: Objects

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9 questions

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6 sample questions

Question 1.
What does a reference variable do?
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Think about what allows us to interact with objects.
Question 2.
Define a constructor.
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How is it related to the class?
3Question 3.
What does a reference variable point to?
- A method
- A variable
- An object
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Think about what allows interaction with this object.
4Question 4.
True or False: A constructor has a return type.
- True
- False
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Consider the signature of a constructor.
Question 5.
Create a class Book with attributes title and author. Write a constructor to initialize these fields and demonstrate creating an instance of Book.
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This involves defining attributes and initializing them within the constructor.
Question 6.
Compare two objects of class Employee using both == and .equals(). Explain the differences in your output.
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You will need to override `.equals()` in the Employee class.

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