Practice Best Practices with Objects - 5.14 | Chapter 5: Objects | ICSE Class 12 Computer Science
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5.14 - Best Practices with Objects

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the purpose of a constructor in Java?

💡 Hint: Think of the constructor as a setup tool for an object.

Question 2

Easy

Why should we use access modifiers?

💡 Hint: Access modifiers help in protecting data.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the primary purpose of a constructor in Java?

  • To destroy objects
  • To initialize objects
  • To modify objects

💡 Hint: Think about when the constructor is called.

Question 2

True or False: Encapsulation allows direct access to class attributes through public access.

  • True
  • False

💡 Hint: Remember how encapsulation is used to protect data.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Create a Java class named 'Book' with attributes for title and author. Include a constructor for initialization and implement getter and setter methods. Additionally, demonstrate how garbage collection works by creating and nullifying a 'Book' object.

💡 Hint: Remember to nullify the object to allow garbage collection.

Question 2

Discuss the benefits of encapsulation with examples, especially focusing on security and maintainability. Create a simple class 'User' with private fields and expose them via getters and setters.

💡 Hint: How does encapsulation prevent direct access to sensitive information?

Challenge and get performance evaluation