Explain the difference between a List, Set, and Map.

Asked by Last Modified  

1 Answer

Learn Java

Follow 1
Answer

Please enter your answer

IT Professional with 8 years of experience in Cloud Software Development

List is an array of Objects. List maintains the inserted order. List allows duplicates Set is an array of Objects. Set doesn't maintain the inserted order. It always stores element in sorted order. Set doesn't allow Duplicate Objects. Map is a collection that stores key-value pairs. Each key is associated...
read more
List is an array of Objects.List maintains the inserted order. List allows duplicates Set is an array of Objects. Set doesn't maintain the inserted order. It always stores element in sorted order. Set doesn't allow Duplicate Objects. Map is a collection that stores key-value pairs. Each key is associated with a value, and the keys are unique within the Map. Mapallows you to retrieve values based on their keys efficiently. read less
Comments

Related Questions

What are the difference between abstract class and Interface?
Abstraction : Hiding unnecessary details of object and shows only essential features of Object to communicate. abstract class : partially defined Object interface :Complete specification of Object class : Complete definition of Object
Ashish
What are Access Specifiers in Java?
Access Specifiers are for visibility of java objects . These are Public, Private, Protected and Default. Public: A variable or method that is public means that any class can access it. Private: These...
Kadar
0 0
9
What exactly the work of constructor( default, parameterized) especially about instance variables initialization. Suppose user initialize the instance variables explicitly. Then what is the use of parameterized constructor over here.. Please reply me
Constructor is used to initialize an object at the time of creation. A default constructor is provided by the compiler itself if no constructor is provided by the user. It initializes the state of the...
Surekha
Who can provide good Java training with real-time but not institute?
If you reside in pune then i can provide real time programming in java . So you will get to know industry based java programming
Sridevi
0 0
6

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

Ask a Question

Related Lessons

Java Overview
Java platform overview Java platform components The Java platform consists of the following components. The Java language Like any programming language, the Java language has its own structure, syntax...
A

Akshay Shende

0 0
0

TestNG Annotations and its sequence
public class TestNGAnnotations { @BeforeMethod public void beforeM() { System.out.println("Before Method"); } @AfterMethod public void afterMethod() { System.out.println("After Method"); } @BeforeClass...
S

Sarthak C.

0 0
0

How to create Rest web services in Java
Web services are web application components that lets two different applications to communicate over the network.Let if an application which in written java provides web services can be communicated through...

Java Collection
Collection: The collection provides an architecture like a list where we can store and manipulate the group of items. Through Collections, we can achieve operations such as searching, sorting, insertion,...
V

Vinaykumar D.

0 0
0

What Is Applet & Its Life Cycle?
What is Applet & its life cycle?Applet is a Java programme that can be embedded into HTML page.Java Applet runs on the java enables web browsers such as Mozilla & Internet Explorer.Applets are...
I

Icreative Solution

0 0
0

Recommended Articles

Java is the most commonly used popular programming language for the creation of web applications and platform today. Integrated Cloud Applications and Platform Services Oracle says, “Java developers worldwide has over 9 million and runs approximately 3 billion mobile phones”.  Right from its first implication as java 1.0...

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 >

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 >

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 >

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