Java Tutorials

What is immutable class and why the String class is made immutable in java?

Learn about inheritance and how to use it in Java with code examples.

Why do we need to put Tomcat behind an Apache server? Such a solution is widely used to improve the performance of high-load environments. Being a fast, secure and flexible HTTP server and having a variety of modules, Apache easily provides some additional functionality for various purposes.

Learn how to run a few domain names on the Java application server GlassFish, which combines enterprise-class capabilities with open source cost efficiency. It’s an enterprise-ready application server with true interoperability and a wide range of features including superior documentation, administration, and configuration.

Previously we showed you how to schedule MySQL and MariaDB backups in the Jelastic Cloud, and now it’s time for a NoSQL solution. This tutorial is focused on creating an automatic MongoDB backup with the help of a cron scheduler.

This is also a very popular java interview questions mostly asked as how to reverse string in Java without using Stringbuffer reverse but There are many different ways to solve this problem using recursion and in this article we discuss one of those way to reverse string in Java.

How to hide android soft keyboard at runtime

Java provides multiple ways to compare two Dates in Java. here we will see 3 simple example to convert two dates in Java and find out whether one date is before, after or in between two dates.

One of the new additions in Java 7 is a very useful mechanism for recursively traversing file trees and in this tutorial we will see how to walk through files and processing -pre and -post visiting events

Enumeration in Java. How to create enums and use it in java. Explained with code examples.