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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What are the eight primitive data types in Java?
💡 Hint: Think about the different kinds of values you can store.
Question 2
Easy
What does AutoBoxing do?
💡 Hint: Consider how Java handles conversions behind the scenes.
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 a primitive data type?
- A type that must be declared
- The most basic type provided by Java
- A reference type
💡 Hint: Think about how data is stored in memory.
Question 2
True or False: Wrapper classes allow primitives to behave like objects.
- True
- False
💡 Hint: Consider how you can manipulate these as objects.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Write a Java program that demonstrates both AutoBoxing and UnBoxing with an ArrayList. Explain the output.
💡 Hint: Think about how the collection handles types.
Question 2
Explain how incorrect type casting can lead to runtime errors in Java, providing a code example.
💡 Hint: Consider how data might 'get lost' in translation.
Challenge and get performance evaluation