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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
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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What operator is used to access object members in Java?
💡 Hint: Think about how you can retrieve fields or call methods on objects.
Question 2
Easy
Define an anonymous object.
💡 Hint: Recall how we can instantiate and directly use an object in one line.
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 operator allows access to the members of an object?
- &
- .
- ->
- *
💡 Hint: Think about how you would retrieve a student's name from their object.
Question 2
True or False: Anonymous objects can only be accessed through a reference variable.
- True
- False
💡 Hint: Recall the definition of an anonymous object.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a class named Book with fields for title and author, include a constructor to initialize these fields, and methods to display these details. Implement a main method that creates an object and accesses its members.
💡 Hint: Recall how to define a class, its constructor, and methods.
Question 2
Explain how garbage collection can help prevent memory leaks in Java applications.
💡 Hint: Think about how you manage memory in applications and what happens when references are disconnected.
Challenge and get performance evaluation