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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a default constructor?
💡 Hint: Think about how it's used when creating an object.
Question 2
Easy
In the Student class, what value is assigned to age by the default constructor?
💡 Hint: Check the Java code example for values.
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 a default constructor do?
- It takes parameters
- It has no parameters
- It returns a value
💡 Hint: Think about how you would define such a constructor.
Question 2
True or False: Every class in Java requires at least one constructor.
- True
- False
💡 Hint: What happens if you define other types of constructors?
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a class named 'Book' with a default constructor that initializes title to 'Unknown' and author to 'Anonymous'. Demonstrate its usage by creating an instance.
💡 Hint: Think about how the constructor initializes object attributes.
Question 2
Explain how creating multiple objects of a class using a default constructor can lead to unique instances despite sharing a common initial value.
💡 Hint: Consider the implications of object-oriented design.
Challenge and get performance evaluation