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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the purpose of a constructor in a class?
💡 Hint: Think about what happens when an object is created.
Question 2
Easy
What does the 'this' keyword do?
💡 Hint: It helps differentiate instance variables from parameters.
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 the purpose of a constructor in a class?
- To define class behavior
- To initialize objects
- To retrieve values
💡 Hint: Think about the role of object creation.
Question 2
The 'this' keyword refers to:
- True
- False
💡 Hint: It differentiates the object's attributes from method parameters.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a Java program with a class 'Student' that has a final variable 'ID', a static variable 'totalStudents', and appropriate constructors. Show how they interact through instantiation.
💡 Hint: Remember to declare final fields in the constructor and to use static correctly.
Question 2
Design a Java class called 'BankAccount' with methods to deposit and withdraw money. The method to withdraw should be static and the variable holding balance should be final. Explain why this design might be problematic.
💡 Hint: Consider how final affects the balance variable.
Challenge and get performance evaluation