Virtual threads in Java 21, Java profilers, a new build system for Java, auto-explain for Postgres, and Generative AI!

Learn the difference between the classpath and the build path in Java.

Learn how to configure a custom source directory for protobuf files.

Explore JUnit5's new @Timeout annotation.

A quick and practical guide to constructing complex nested mappers with MapStruct.

Explore strategies for parsing multiple date formats at once.

Learn how to convert an integer value to hexadecimal in Java.

Explore the advantages of reusing a StringBuilder and explore a concrete example of how to do it.

Learn about Elasticsearch shards and replicas.

Explore Java Modularity and learn how it affected the testing in Java applications.

Java has a built in UUID generator. We compare this to some other solutions which can be more secure or performant.

Another preview of Foreign Functions, Jakarta REST, Scala 3 annotations, Postgres power features, and Scalable Slack!

Understand the differences between the th:text and th:value Thymeleaf attributes.

Learn how to use the Spoon library to analyze and modify Java source code.

A quick and practical guide to URL manipulation in Java.

Learn the differences between Integer.parseInt(Scanner.nextLine()) and Scanner.nextInt() through examples.

Learn how to parse an OpenAPI document file in Java and extract its various components.

Explore the differences between using the JAVA_HOME and PATH environment variables.

Learn three approaches to finding the most frequent characters in a string, with examples.

Explore different NLP libraries in Java and see how to implement some NLP tasks using Apache OpenNLP and Stanford CoreNLP.