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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a variable in programming?
💡 Hint: Think about memory and storage.
Question 2
Easy
How do you declare an integer variable named 'number'?
💡 Hint: Remember the syntax 'data_type variable_name;'.
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 must you do before using a variable in Java?
- Declare it
- Initialize it
- Both
💡 Hint: Remember: You can't use it until it's declared!
Question 2
Is it true that instance variables are the same for all objects of a class?
- True
- False
💡 Hint: Think about how objects in Java work.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Write a program that demonstrates both local and instance variables. Explain what happens if you try to access a local variable outside its method.
💡 Hint: Pay attention to variable scopes.
Question 2
Create a class with a static variable and demonstrate how it can be accessed from different instances. What happens when it is modified?
💡 Hint: Remember that static variables belong to the class.
Challenge and get performance evaluation