Learn how to collect non-null elements from a Stream mapping operation.

A walk-through of integrating OpenAI's Java Client Assistants and Completion APIs.

Explore several methods for converting decimal numbers to fractions, including using the GCD approach.

In this tutorial, we'll explore how to use the replaceAll() method in the String class to replace text using regular expressions. We'll compare the back reference and lookaround methods for this operation and evaluate their performance.

Explore the historical constraints on static types within inner classes before Java 16 and learn about the significant relaxation of these rules in Java 16 and later versions.

Learn how to extract the Common Name (CN) from an X509 certificate in Java using regex, Bouncy Castle, and more.

JPA Criteria Querydsl differences: Discover the key differences between JPA Criteria and Querydsl for building type-safe database queries.

Java ExecutorService vs CompletableFuture: Understand the differences and uses of Java ExecutorService and CompletableFuture for concurrency.

Untangle errors in your Java Lambdas! This guide explores exception handling techniques - try-catch blocks, functional interfaces...

In this article, we are going to learn about reactive APIs offered by Apache HttpClient APIs. We are going to explore how to use reactive, full-duplex HTTP/1.

Configuring Apache HttpClient is essential for tailoring its behavior to meet specific requirements and optimize performance. From setting connection timeouts to defining proxy settings, configuration options allow developers to fine-tune the client’s behavior…

In this article, we are going to learn about the async APIs offered by Apache HttpClient. We are going to explore the different ways Apache HttpClient enables developers to send and receive data over the internet in asynchronous mode.

In this article series, we’re going to explore Apache HTTPClient APIs. We’ll get familiar with the different ways Apache HttpClient enables developers to send and receive data over the internet.

In this article, we are going to learn about the classic APIs offered by Apache HttpClient. We are going to explore the different ways Apache HttpClient helps us to send and receive data over the internet in classic (synchronous) mode.

Indexes in PostgreSQL: Enhance PostgreSQL performance with optimized indexing strategies. Boost query speeds efficiently.

Interested to learn more about Jackson and Lombok examples? Then check out our detailed examples.

How to parse JSON using Moshi: Learn how to parse JSON using Moshi in Java with easy-to-follow steps and code examples.

Interested to learn more about how to map a subset of json using jackson? Then check out our detailed example!

Learn how to fix ambiguous method call error in Mockito using any(), and isNull() for precise matching with this guide.

Unleash the power of asynchronous web development in Java with Ktor! This lightweight framework offers blazing-fast performance and more!

Don't let Javalin's simplicity fool you! This guide unlocks the power of Javalin for building secure REST APIs.