Learn how to find all classes in a Java package at runtime.

A quick guide to using SimpleDateFormat in Java.

We can use regular expressions to count occurrences of numbers in a String in Java. We look at finding numbers of various formats, extracting and converting them back into numeric form, as well as counting digits.

A quick tutorial to filtering collections in Java using different approaches.

Learn about libraries that give a detailed description of the difference between two strings.

A quick and practical guide to BSON to JSON conversion in Java.

A quick and practical guide to FileNotFoundException in Java.

Learn how and when to use abstract classes as part of a class hierarchy in Java.

The most useful conversions of Java primitive types.

Interested to learn about API error? Check our article explaining how to Provide useful API error messages with Spring Boot.

Learn about the differences between JAR and WAR packaging in Java

Learn how Kafka Streams simplify the processing operations when retrieving messages from Kafka topics.

Learn about Weak References in Java and their common usage scenarios

A quick and practical guide to generating array permutations in Java.

Safe natives in Java, secure microservices with Spring Security, continuous testing in Quarkus, AWS timeseries, and different test levels!

Reactive Programming has a lot of pitfalls for rookies to fall into, especially when it's multi-threaded. This article documents some of those pitfalls and their solutions so you don't have to fall.

Learn how to preserve the generic type information at runtime using super type tokens.

Interested to learn about Spring Endpoint? Check our article explaining how to expose a Spring based endpoint to accept a Json Patch or Json Merge Patch body

Learn how to build and interact with templates using Handlebars.