ConcurrentHashMap in Java

In Java, ConcurrentHashMap is a class that implements the ConcurrentMap interface and provides a concurrent, thread-safe implementation of a hash table. Multiple threads can access and modify the map simultaneously without explicit... Read more »
sending email with Java Mail API

Use Java Mail API to send Email with Gmail SMTP example

In this article, we’re going to see how to send an email with and without attachments using pure Java Mail API. Java (since version 1.2) provides a set of classes and interfaces... Read more »
Java LinkedList

An Introduction of Java LinkedList with examples

Java LinkedList is a part of a Java collection framework. It implements the List interface in a doubly LinkedList manner. By inheriting AbstractSequentialList class, It implements all List operations. LinkedList class also... Read more »
Remove duplicate from a list in Java

How to Remove Duplicates from ArrayList in Java

In this tutorial, we are going to see how to remove duplicates from ArrayList in Java with various inbuild APIs and third-party libraries. Java List is an interface that facilitates storing an... Read more »

Install Java on Windows

Java is one of the most favorite programming language used by millions of applications and programs today. Java runs on various platforms like Windows, Unix, and mac os. It is very essential... Read more »

Create Singleton Class

In this article, I will show how to write Singleton class in JAVA Definition:- A class called Singleton class if we can create one and only one instance of that class. Fact... Read more »