Learn about Java's access modifiers

Interested to learn about JavaFX Library? Check our article talking about the JavaFX Library FXSkins that were released.

Understand autogenerated class naming conventions in Java.

Quick and practical guide to ArrayList in Java

Learn how to get all dates between two dates using Java 7, Java 8, and Java 9.

Learn how to find if two numbers are relatively prime using three implementations of the gcd algorithm.

Learn to format numbers in Java.

Learn how to use Apache Commons Text for common String operations.

Interested to learn about Pattern Matching? Check our article explaining how to Implement equals(Object) with instanceof Pattern Matching.

Explore the fundamentals of records, including their purpose, generated methods, and customization techniques.

Interested to learn about data sets? Check our article explaining how to use a transactional ActiveMQ queue in front of a set of stateless OptaPlanner pods

Learn how to work with lazy collection in JPA.

Learn how to get the week number for a given date in Java.

A quick and practical guide to how we can use the try-with-resources functionality introduced in Java 7 to auto-close resources and simplify our syntax.

Why are raw types problematic? Learn how and what to do about it.

Pattern matching meets switch expressions, working with lazy relationships, Spring Boot for serverless, the road to Kotlin 1.5 and Java 17, and tips for working from home!

Learn how to set the time zone of a date in Java 7, Java 8 and Joda-Time

Learn how to use Semaphores in Java.

Explore the various ways of initializing a Map, particularly to create empty, singleton, immutable and mutable maps.

Learn about Java's finalize method and why not to use it.

There are ways we could refactor the displayCart function, but consider a second what the caller is doing each time it wants to use the function. Consider