How to remove all nulls from a List using plain Java, Guava, the Commons Collections framework or the new Java 8 lambda support.

How to use the Guava Splitter and Joiner to convert to and from collections and Strings.

Explore different ways to break from a loop in Java.

Explore the difference between skip() and limit() methods in the Java 8 Stream API.

Learn about Java static fields, static methods, static blocks and static inner classes.

When building RESTful APIs over HTTP the PUT method is typically used for updating, while POST is used for creating resources. However, create and update

Hello guys, generating PDF files in today’s enterprise applications is quite common. Doing this with Java is not an easy task as Java does not gives

This blog post is a follow up on the initial introductory post, Supersonic Subatomic GraphQL, and here we will explore more features, some that is

Spring Mock-MVC can be a great way to test Spring Boot REST APIs. Mock-MVC allows us to test Spring-MVC request handling without running a real server. I

Learn how to use JGraphT to create graphs and explore the variety of graph algorithms.

Learn several ways to print triangles in Java using for loops.

Explore multiple ways to initialize a HashSet while it's constructed.

Learn about the performance aspects of the Java String API

A comprehensive overview of Functional Programming in Java.

Learn how a Java program can detect whether it's running in a 64-bit or 32-bit JVM.

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

Learn quickly how to flatten a nested collection in Java.

Learn how to use the getLocalizedMessage() method to provide localized exception messages

Learn about the IndexOutOfBoundsException: "Source does not fit in dest" in Java.