Explore the differences between Oracle Java Development Kit and OpenJDK.

A quick and practical overview of the Kotlin Collections API.

Interested to learn about thread dumps? Check our article talking about thread dump a snapshot of all the threads running in a java process.

Continuing the Resilience4j journey, this article on Spring Boot TimeLimiter shows when and how to use it to build resilient applications.

Learn how to set up a Dropwizard application with Maven.

Learn how to use the Open Liberty framework to create and consume a RESTful web service

Explore a complete guidebook for a tiny Java 8+ MVC framework called Blade.

Learn about what causes the java.lang.OutOfMemoryError: unable to create new native thread error.

Serialization filters, cold starts in JVM, faster charset encoding, simple web server, JDBC caching, and specialized kube-proxies!

Learn how to get the character at a given position of a String in Java.

Learn how to use the keySet(), entrySet() and values() methods of the Map interface in Java.

Learn how to use Java's super keyword to reference the parent class.

A quick and practical guide to converting objects into byte arrays in Java.

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

Learn how to convert a Double to a String while removing the fractional digits using a number of different approaches.

Learn several ways to convert a List into a Map using Custom Suppliers.

A quick and practical guide to getting maximum/minimum element from a list or a collection.

Overview of several ways of handling the common problem of rounding a decimal number in Java

Learn about symbolic links, and how to create them with Java

Learn how to execute SQL queries using the batching features of JDBC.