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Java Collections Framework
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Q1

What is the purpose of the Java Collections Framework?

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Q2

Which interface in the Java Collections Framework represents an ordered collection of elements that can contain duplicate values?

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Q3

What is the primary difference between a `List` and a `Set` in the Java Collections Framework?

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Q4

Which class is typically used to implement a `List` in the Java Collections Framework?

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Q5

In the Java Collections Framework, which interface extends the `List` interface to provide more efficient insertions and deletions in the middle of the list?

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Q6

What is the purpose of the `Map` interface in the Java Collections Framework?

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Q7

Which class is typically used to implement a `Map` in the Java Collections Framework?

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Q8

What is the primary difference between a `HashMap` and a `TreeMap` in the Java Collections Framework?

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Q9

In the Java Collections Framework, which interface represents a collection of unique elements with no duplicates?

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Q10

Which class is typically used to implement a `Set` in the Java Collections Framework?

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Q11

What is the primary difference between a `HashSet` and a `LinkedHashSet` in the Java Collections Framework?

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Q12

Which interface in the Java Collections Framework represents a collection of elements with no specific order?

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Q13

What is the primary difference between a `Queue` and a `Deque` in the Java Collections Framework?

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Q14

Which class is typically used to implement a `Deque` in the Java Collections Framework?

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Q15

In the Java Collections Framework, which class allows you to create a synchronized (thread-safe) collection?

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Q16

Which interface in the Java Collections Framework extends the `Set` interface and represents a collection of elements stored in a sorted order?

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Q17

What is the purpose of the `Comparator` interface in Java Collections Framework?

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Q18

Which class is typically used to implement a `SortedSet` in the Java Collections Framework?

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Q19

In the Java Collections Framework, which interface represents a last-in, first-out (LIFO) stack of elements?

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Q20

What is the primary difference between a `Stack` and a `Queue` in the Java Collections Framework?

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