Practice Limitations Of Generics (6.8) - Generics and Type Inference

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9 questions

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6 sample questions

Question 1.
Can you declare a generic array of type T in Java?
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Think about what type parameters mean in terms of concrete classes.
Question 2.
What is a wrapper class in Java?
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Consider examples you learned about, like Integer for int.
3Question 3.
Can you create an array of a generic type T?
- True
- False
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Think about how arrays work with types.
4Question 4.
Can static fields be of generic type?
- True
- False
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Consider what static members actually represent.
Question 5.
Given a generic class, design a method that demonstrates type erasure and explain what issues could arise if type information were preserved.
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Consider the practical effects on type integrity.
Question 6.
Write a snippet of code attempting to create a static field as a generic type and explain the compilation error it produces.
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Reference back to the rules of static members.

5 more questions in this section. Enroll free to practise them all.