Practice Encapsulation In Java (4.4) - Introduction to Object-Oriented Programming using Java

Practice: Encapsulation in Java

Lesson 4.4Introduction to Object-Oriented Programming using Java

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9 questions

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Exercise
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Quiz
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6 sample questions

Question 1.
What is encapsulation in Java?
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Think about how you would hide sensitive information while still allowing others to interact with it.
Question 2.
Define getters and setters.
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What methods would you use to get and set values in a class?
3Question 3.
What does encapsulation protect?
- Code Structure
- Data Integrity
- Class Relationships
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Consider the main goal of encapsulation in programming.
4Question 4.
True or False: A private variable can be accessed directly from outside its class.
- True
- False
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Reflect on the visibility of private variables.
Question 5.
Design a class called Account that contains private variables for balance. Create methods to deposit and withdraw funds, ensuring the balance never goes below zero.
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Consider what checks you need to implement in the withdraw method.
Question 6.
Write a program that allows a user to create a student profile with name and age, using encapsulation principles to ensure age cannot be negative.
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How will you validate the age when setting it?

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