Practice Summary (15.14) - Collections and Generics

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8 questions

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6 sample questions

Question 1.
What is the purpose of the Collections Framework in Java?
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Think about data management.
Question 2.
Define Generics in Java.
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Consider how it helps with type safety.
3Question 3.
What does the Collections Framework in Java allow?
- A. Only store primitive data types
- B. Manage groups of objects
- C. Only manage single elements
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Think about the key definition of the Framework.
4Question 4.
True or False: Generics prevent runtime errors by enforcing type checks at compile time.
- True
- False
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Consider the role of Generics.
Question 5.
Create a program that builds a List of different data types and demonstrate the potential issues without Generics.
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Consider type conversions.
Question 6.
Design a generic Pair class that can hold two elements of any type and implement a method to swap their values.
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Recall class definition with generics.

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