Java Generics enable stronger type checks at compile time and eliminate the need for type casting, making code safer and cleaner. This feature is widely used in Java Collections and user-defined classes to ensure type safety and reusability.
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What will happen if you use a raw type instead of generics?
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Question 4 of 15
4. Question
Which of the following is a valid generic method declaration?
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Question 5 of 15
5. Question
What does <?> represent in generics?
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Question 6 of 15
6. Question
Which interface is most commonly used with generics?
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Question 7 of 15
7. Question
What is the result of using incompatible types in a generic class?
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Question 8 of 15
8. Question
Which type of casting is avoided using generics?
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Question 9 of 15
9. Question
Which of these is a correct instantiation of a generic class Box<T>?
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Question 10 of 15
10. Question
Can we use primitive data types in generics?
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Question 11 of 15
11. Question
What will <T extends Number> mean in a generic class?
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Question 12 of 15
12. Question
Which generic wildcard allows read-only access?
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Question 13 of 15
13. Question
What is T in a generic declaration?
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Question 14 of 15
14. Question
Why is it recommended to use generics in Collections?
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Question 15 of 15
15. Question
Which Java version introduced Generics?
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Summary
Java Generics enhance type safety, remove the need for explicit casting, and make collections and custom classes more reusable. Widely used in frameworks and APIs, mastering Generics is key for clean and robust Java programming.
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