Practice Why Generics? (15.9.1) - Collections and Generics

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6 sample questions

Question 1.
What is the main benefit of using Generics in Java?
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Think about what happens when you use a List with a specific type.
Question 2.
Explain how Generics improve code readability.
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Consider a collection that accepts only one type of data.
3Question 3.
What does Generics provide in Java?
- Type Safety
- Faster Execution
- Memory Management
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Think about what is guaranteed when you declare a Generic.
4Question 4.
True or False: Generics help in preventing ClassCastException.
- True
- False
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Consider how Generics restrict the types of data.
Question 5.
Create a generic data structure to hold any type of data. Describe how you would implement it and ensure type safety.
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Consider how generics allow you to parameterize your class definition.
Question 6.
Implement a bounded type parameter to create a method that only accepts types that extend a specific class, like Number. Write the method signature.
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Think about how to restrict the types allowed in your method.

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