6.2 - Wrapper Classes
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Practice Questions
Test your understanding with targeted questions
What is a wrapper class in Java?
💡 Hint: Consider how primitives are limited in their capabilities.
What method would you use to convert a String to an int?
💡 Hint: Think of what you would do with user input.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the Java wrapper class for the primitive type 'int'?
💡 Hint: Think of how you represent whole numbers in Java.
AutoBoxing refers to what?
💡 Hint: Consider conversion and what happens automatically in Java.
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Challenge Problems
Push your limits with advanced challenges
Create a Java code snippet that demonstrates AutoBoxing with an ArrayList. What would the output be when retrieving the value?
💡 Hint: Think about how Java handles objects in collections vs. primitives.
Discuss a scenario where using a wrapper class is necessary, providing a specific example of method usage.
💡 Hint: Consider the differences between primitive storage and object storage.
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