Question

What does Collections.emptySet() return?

a.

Immutable Set

b.

Mutable Set

c.

The type of Set depends on the parameter passed to the emptySet() method

d.

Null object

Posted under java util Java Programming

Answer: (a).Immutable Set

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. What does Collections.emptySet() return?

Add Comment

Similar Questions

Discover Related MCQs

Q. What are the initial capacity and load factor of HashSet?

View solution

Q. What is the relation between hashset and hashmap?

View solution

Q. Set has contains(Object o) method.

View solution

Q. What is the difference between TreeSet and SortedSet?

View solution

Q. What happens if two threads simultaneously modify TreeSet?

View solution

Q. What is the unique feature of LinkedHashSet?

View solution

Q. Which of these standard collection classes implements a linked list data structure?

View solution

Q. Which of these classes implements Set interface?

View solution

Q. Which of these method is used to add an element to the start of a LinkedList object?

View solution

Q. Which of these method of HashSet class is used to add elements to its object?

View solution

Q. Which of these methods can be used to delete the last element in a LinkedList object?

View solution

Q. Which of this method is used to change an element in a LinkedList Object?

View solution

Q. Which of these object stores association between keys and values?

View solution

Q. Which of these classes provide implementation of map interface?

View solution

Q. Which of these method is used to remove all keys/values pair from the invoking map?

View solution

Q. Which of these method Map class is used to obtain an element in the map having specified key?

View solution

Q. Which of these methods can be used to obtain set of all keys in a map?

View solution

Q. Which of these method is used add an element and corresponding key to a map?

View solution

Q. Which of these class object can be used to form a dynamic array?

View solution

Q. Which of these are legacy classes?

View solution

View All MCQs on java util

Suggested Topics

Are you eager to expand your knowledge beyond Java Programming? We've curated a selection of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of Computer Science. Happy exploring!

Discrete Mathematics

Refine your mathematical skills essential for computer science with our Discrete...

Computer Architecture

Unveil the science behind computer design with our Computer Architecture MCQs. Topics...

Data Structures and Algorithms

Journey through the fundamentals of Data Structures and Algorithms with our extensive...

Data Science

Discover the fascinating world of extracting insights from data with our Data Science...

Computer Hardware

Explore the tangible components of computers with our Computer Hardware MCQs. Learn...

CSS

Polish your web design skills with our CSS MCQs. Learn about selectors, properties,...

HTML

Start your journey in web development with our HTML MCQs. Learn the building blocks...

Systems Programming

Decode low-level programming with our Systems Programming MCQs. These questions delve...

Digital Image Processing (DIP)

Delve into the techniques of enhancing digital images with our Digital Image...