To make our code portable between operating systems, we need to handle the directory and path separator characters correctly. We look at a few ways that Java can help use the correct characters for the host operating system.

Learn that there is more than one way to find JAVA_HOME, including a platform-independent one.

Learn how to use MultiValuedMap from the Apache Commons Collections library to map each key to a collection of values in Java.

An OpenJDK with JWarmup and coroutines, pattern matching for arrays, JVM performance rabbit hole, distributed metadata management, and a more effective developer experience!

Read up on how to code selection sort in Java, how it works, and what its complexity is.

Explore the similarities and differences between two constructs in Java generics.

Explore the differences between the ZonedDateTime and the OffsetDateTime classes in Java

Convert a java.time.Instant to java.sql.Timestamp and vice-versa.

Learn about the Radix sort algorithm and implement it in Java.

Learn how to convert an Iterable to a Collection with a core Java solution or other libraries

A set of common interview exercises from class structure and initialization in Java

Learn the differences between binary semaphores and reentrant locks and see which one is best suited in common situations

With the release of the Spring Cloud 2020.0.0 (aka Ilford) release train we’re more than happy to announce the general availability of Spring Cloud

In this post, we are going to create a Jenkins pipeline for a Java Spring project using Maven and Git: Accessing Jenkins dashboard and configuring Maven

Geertjan Wielenga has posted "Java Predictions for 2021" on Foojay Today. It is a collection of predictions about Java in 2021 from eight members of the

Explore features of the Java Enum implementation.

Learn how to create a char stack in Java.

Java Core, TDD, Streams, Lambdas, JPA/Hibernate, SQL, Build Tools, Git, Web Servers, HTML,Servlets, JSP, Spring Boot etc

A short overview of how MappedByteBuffer can be used for high-performance file manipulation.

A quick and practical guide to reading, publishing, and editing RSS feeds in Java using Rome API.