Learn about the differences between ClassNotFoundException and NoClassDefFoundError.

Learn the differences between Java's checked and unchecked exception with some examples

How to Convert between an Array and a List Using plain Java, Guava or Apache Commons Collections.

Java 14 brings in a new API to wrap accessing memory managed outside of the JVM. Here we explore the need for the API and how it works.

Learn what features java.util.Arrays has, including what's new from Java 8

Learn how to use MapUtils to perform common Map operations.

Learn about the new Java 11 feature of single-file source-code programs

A quick and practical overview of the Visitor design pattern in Java.

Learn how to calculate the difference between dates in Java, using native approach, as well as external libraries.

Learn how to retrieve the intersection of two Lists.

Learn about the Math class that provides helpful static methods for performing numeric operations.

Explore the functionality offered by Apache Commons and Google Guava, specifically in the area of the collections framework.

Interested to learn about Hoverfly? Check our article explaining how you can do Testing with Hoverfly and Java.

In this post, I will demonstrate how to create a simple web service using Spring Boot.  This framework makes it almost effortless to develop web

Java exceptions are considered expensive and shouldn't be used for flow control. This tutorial will prove that this perception is correct.

A set of popular Java8-related interview questions and of course answers.

Explore how to implement the HTTP protocol, particularly an HTTP server using Netty.

A quick example and explanation of the getBytes API of the standard String class in Java.

Learn how to use the 0xff value with the bitwise AND operator in Java.

Take a closer look at Java's AbstractMethodError and understand what it is and when it may happen