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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the default value of a boolean in Java?
💡 Hint: Think about the initial state of a boolean variable.
Question 2
Easy
How many primitive data types does Java have?
💡 Hint: Recall what we discussed about the types in class.
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 size of a float in Java?
- 8 bits
- 16 bits
- 32 bits
- 64 bits
💡 Hint: Think about the precision needed for decimal values.
Question 2
Autoboxing is the process of converting an object to a primitive type.
- True
- False
💡 Hint: What happens during autoboxing?
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider the following code snippet. What value will 'result' hold after execution?
💡 Hint: What do you think happens to the decimal part when converting from float to int?
Question 2
In what scenario would you prefer using wrapper classes over primitive types? Provide a code example.
💡 Hint: Which data structures require objects and can't accept primitive types?
Challenge and get performance evaluation