5.15 - Summary
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is an object in Java?
💡 Hint: Think of real-world entities.
What keyword is used to create an object?
💡 Hint: Remember the syntax: ClassName objectName = new ClassName();
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
Which keyword is used to instantiate an object in Java?
💡 Hint: Think of the syntax for creating an object.
True or False: A constructor has a return type.
💡 Hint: Consider how you define a function compared to a constructor.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Create a Book class with attributes for title and author, include a constructor and a method to display the book information. Create an object and display its information.
💡 Hint: Remember to use the 'new' keyword to create the object.
Explain how you would use garbage collection in a program that dynamically creates many objects over time.
💡 Hint: Think about how it helps in memory management without manual deletion.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.