Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
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 related to the topic.
Question 1
Easy
What is an object in Java?
💡 Hint: Think about the characteristics that define an object.
Question 2
Easy
What keyword is used to create an object?
💡 Hint: It's the first step in object creation.
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 an object in Java?
- A class
- An instance of a class
- A method
💡 Hint: Consider the definition of a class.
Question 2
True or False: Constructors have a return type.
- True
- False
💡 Hint: Think about how constructors are defined.
Solve 3 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a class Book with attributes for title and author. Create a constructor and a method to display the book's details. Then, instantiate objects and demonstrate using this class.
💡 Hint: Make sure to follow proper class and method structuring.
Question 2
Explain how Java's garbage collection works and why it is important for memory management. Provide an example of what could happen without it.
💡 Hint: Consider scenarios where objects are created but not effectively managed.
Challenge and get performance evaluation