Discuss the HashSet and TreeSet classes.

Asked by Last Modified  

1 Answer

Learn Java

Follow 2
Answer

Please enter your answer

Wroking in IT industry from last 15 years and and trained more than 5000+ Students. Conact ME

HashSet: Unordered, allows null, O(1) add, O(1) contains. TreeSet: Sorted, no null, O(log n) add, O(log n) contains.
Comments

Related Questions

Why string objects are immutable?
Strings are immutable once created cannot be changed and hence cannot be eliminated but string builders are mutable.
Sujatha
What is the difference between abstraction and encapsulation?
Encapsulation is wrapping, just hiding properties and methods. Encapsulation is used for hide the code and data in a single unit to protect the data from the outside the world. Class is the best example...
Neval
Can finally block be used without try block?
A finally clause ensures that the finally block is executed after the try block and any catch block that might be executed, no matter how control leaves the try block or catch block.
Sarala
Can you use abstract and final both with a method? Why?
No because we have to provide an abstract method with implementation in the subclass (the child class of the parent class in which the abstract method was declared). And for providing this implementation...
Sushil

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Java8 Filters and collectors
Lets say we have collection of strings and we would like to filter (remove) out certain strings from collection. We could achive the same in java 7 and earlier versions import java.util.ArrayList; import...

4 Things Every Tech Startup Needs to Know About The Coaching Industry
Knowledge on any subject is widely available to those who wish to learn. However, just gathering knowledge from other people doesn’t guarantee results in business. Results come from applying what...

Differences Between HashMap vs HashSet In Java.
HashSet HashMap HashSet implements Set interface. HashMap implements Map interface. HashSet stores the data as objects. HashMap stores the data as key-value pairs. HashSet...

Java : Compile-time Versus Runtime optimization
While designing and development, one should think in terms of compile-time and run-time.It helps in understanding language basics in a better way.Let's understand this with a question below : What...
S

Thread Class In JAVA
Thread Class: Thread class is the main class on which Java's Multithreading system is based. Thread class, along with its companion interface Runnable will be used to create and run threads for utilizing...

Recommended Articles

In the domain of Information Technology, there is always a lot to learn and implement. However, some technologies have a relatively higher demand than the rest of the others. So here are some popular IT courses for the present and upcoming future: Cloud Computing Cloud Computing is a computing technique which is used...

Read full article >

Designed in a flexible and user-friendly demeanor, Java is the most commonly used programming language for the creation of web applications and platform. It allows developers to “write once, run anywhere” (WORA). It is general-purpose, a high-level programming language developed by Sun Microsystem. Initially known as an...

Read full article >

Before we start on the importance of learning JavaScript, let’s start with a short introduction on the topic. JavaScript is the most popular programming language in the world, precisely it is the language - for Computers, the Web, Servers, Smart Phone, Laptops, Mobiles, Tablets and more. And if you are a beginner or planning...

Read full article >

Java is the most famous programming language till date. 20 years is a big time for any programming language to survive and gain strength. Java has been proved to be one of the most reliable programming languages for networked computers. source:techcentral.com Java was developed to pertain over the Internet. Over...

Read full article >

Looking for Java Training Classes?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you