Practice Conclusion (6.6) - Primitive Values, Wrapper Classes, Types, and Casting

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10 questions

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6 sample questions

Question 1.
What are the eight primitive data types in Java?
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Think about the different kinds of values you can store.
Question 2.
What does AutoBoxing do?
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Consider how Java handles conversions behind the scenes.
3Question 3.
What is a primitive data type?
- A type that must be declared
- The most basic type provided by Java
- A reference type
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Think about how data is stored in memory.
4Question 4.
True or False: Wrapper classes allow primitives to behave like objects.
- True
- False
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Consider how you can manipulate these as objects.
Question 5.
Write a Java program that demonstrates both AutoBoxing and UnBoxing with an ArrayList. Explain the output.
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Think about how the collection handles types.
Question 6.
Explain how incorrect type casting can lead to runtime errors in Java, providing a code example.
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Consider how data might 'get lost' in translation.

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