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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define an object in your own words.
💡 Hint: Think about how objects exist in our world.
Question 2
Easy
What keyword is used to create a new object in Java?
💡 Hint: Recall the syntax for creating objects.
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 does the 'new' keyword do in Java?
- Creates a class
- Instantiates an object
- Defines a method
💡 Hint: Consider what happens when you want to use a class.
Question 2
True or False: An object can have multiple behaviors.
- True
- False
💡 Hint: Think of different actions a single object can perform.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Develop a class named 'Library' that manages an array of 'Book' objects, including methods to add books, remove books, and display all books.
💡 Hint: Think about how books can be stored and managed within your Library.
Question 2
Create a program that utilizes garbage collection by generating several objects while simulating usage and then clearing them to observe behavior during runtime.
💡 Hint: Consider how your program can create and discard objects, affecting memory management.
Challenge and get performance evaluation