Understand the purpose of the Optional class and learn how to use it efficiently to design clear and robust APIs.

Learn how to create a serializable singleton class in Java.

Explore the differences between errors and exceptions in the Java ecosystem.

Learn different approaches for sorting collections by comparing multiple fields.

Learn how to access MBeans from a shell script.

Explore the topic of String interpolation in Java.

Explore two simple approaches to configure our Lombok builder classes to work seamlessly with Jackson.

Learn how characters are internally represented in Java and how we can convert an int to a char and back.

Looking for a Java Lead with Spring experience to join the Baeldung team.

Take a closer look at these two static factory methods for immutable maps and explain which one is suitable for which purpose.

JMS enhancements, JakartaEE Serverless, revisiting DTO, Golang impressions, and new a K8S release!

Learn the differences between Callable and Supplier interfaces and understand when to use them.

Learn two ways to extract an object's value to be asserted on.

Learn how to split a String by whitespace characters, such as space, tab, or newline, using multiple approaches

Learn multiple techniques to sort the elements of a HashSet.

Learn how to add a new element at a specific position to an ArrayList.

1. Introduction Design patterns are reusable solutions to common software design problems. They provide a way to describe and document software

Explore different approaches to finding the first non-repeating character in a string.

Explore the factory design pattern.

Learn how to convert an instance of LocalDateTime to ZonedDateTime and vice versa.

Learn the different expression types available in Thymeleaf with examples.