Practice Encapsulation (4.4) - Chapter 4: Object-Oriented Programming (OOP) in Java

Practice: Encapsulation

Lesson 4.4Object-Oriented Programming (OOP) in Java

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9 questions

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6 sample questions

Question 1.
What is encapsulation in Java?
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Think about what keeps your account's balance safe from direct changes.
Question 2.
Name one access modifier in Java.
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It restricts the visibility of class members.
3Question 3.
What does encapsulation primarily achieve in programming?
- Makes data public
- Hides data and controls access
- Increases code complexity
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Remember the concept of data protection and access regulation.
4Question 4.
True or False: Encapsulation allows direct access to private members outside the class.
- True
- False
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Consider the rules of private access.
Question 5.
Design a BankAccount class that encapsulates the balance and provides methods for deposits and withdrawals, ensuring that withdrawals do not exceed the balance.
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Focus on restricting access and ensuring logical conditions are met during transactions.
Question 6.
Reflect on a situation in which a public variable might cause data integrity issues. How would encapsulation prevent such issues? Explain your reasoning.
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Think about scenarios in banking, gaming, or other applications where state consistency is crucial.

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