Discuss the HashSet and TreeSet classes.

Asked by Last Modified  

1 Answer

Learn Java

Follow 2
Answer

Please enter your answer

Vivek Joglekar

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
Dislike Bookmark

Related Questions

Why Operator Overloading in not allowed in JAVA?
Java does not support operator overloading by programmers. This is not the same as stating that Java does not need operator overloading. Operator overloading is syntactic sugar to express an operation...
Ashish
1.What is Model Driven Interceptors is used for? 2.what is the purpose of using Action support??
Using ActionSupport class, we can implement Custom validation which validates at the server-side. We can write server side validation logic in validate() method.
Monisha
Which programming language should I learn, C++, Python or Java?
Better to start with Java
Navneet
0 0
5
Why Java Laguage is not provided get method into Iterator? is there any specific reson.
1) Iterator is an Interface. 2) It's sole purpose is to iterate not save value. POJO's have getters and setters.
Niraj Raj
How can I learn Java from home?
Hi Divya, There are several ways to learn Java from home. 1. You can find trainer on UrbanPro. 2. You can find free resources available online like youtube or javaranch, stackoverflow 3.You can connect...
Divya
0 0
5

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

Ask a Question

Related Lessons

Spring Framework Mvc

Chinmay Patel

0 0
0
Easy way to remember Java keyword.
ACCESS MODIFIER ACCESS SPECIFIER abstract, assert, const, final, native, static, strictfp, super, synchronized, this, transient, void, volatile public, private, protected, default DATA...

Rohit Deshbhratar

1 0
0
1.1. Reverse an array in Java.
public class Main { public static void main(String args) { int arr = {1, 2, 3, 4, 5}; for (int i = 0; i < arr.length / 2; i++) { int temp = arr; arr = arr; arr = temp; } System.out.println(Arrays.toString(arr)); }}

Vivek J.

0 0
0
Mastering in Java Programming
Core java topics What is Java?Execution Model Of JavaBytecodeHow to Get Java?A First Java ProgramCompiling and Interpreting ApplicationsThe JDK Directory StructureUsing Eclipse Data types and Variables What...

Rajeev Majumdar

1 0
0
The 2026 Java Full Stack Roadmap (without AI)

Vikas Bandaru

0 0
0

Recommended Articles

Some Popular IT Courses in Current Market

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 >

Why Java is the Most Popular Programming Language

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 >

Top 5 Reasons to Learn JavaScript

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 >

Why Should You Learn Java !

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 >

Find Java Certification near you
Java Certification in Bangalore
Java Certification in Hyderabad
Java Certification in Pune
Java Certification in Chennai
Java Certification in Delhi
Java Certification in Mumbai
Java Certification in Kolkata
Java Certification in Noida
Java Certification in Gurgaon
Java Certification in Ghaziabad
Online Java Training

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