Java Resources

Java Hashtable, HashMap, ConcurrentHashMap: Performance Impact

This article compares the performance behaviors between the data structures HashMap, Hashtable, and ConcurrentHashMap through practical examples.

May 14, 2022

by Ram Lakshmanan

CORE

· 8,380 Views · 3 Likes

Refactoring Java Application: Object-Oriented And Functional Approaches

Learn how you can achieve better design using object-oriented and functional approaches. This post includes examples with inheritance and functional interfaces.

Updated May 11, 2022

by Dmitry Egorov

CORE

· 23,531 Views · 21 Likes

JUnit 5 Tutorial: Nice and Easy [Video]

Want a fun and engaging intro to the JUnit 5 testing ecosystem? Check out this live-coding session on a new episode of "Marco Codes."

May 11, 2022

by Marco Behler

CORE

· 5,603 Views · 5 Likes

How to Hash, Salt, and Verify Passwords in NodeJS, Python, Golang, and Java

How to hash and salt passwords in different languages and why it's important to do so.

May 11, 2022

by Advait Ruia

· 8,375 Views · 1 Like

Kafka Fail-Over Using Quarkus Reactive Messaging

Learn about a scenario where, at first glance, I needed an active-active Kafka cluster with bi-directional replication. What happened as I dove deeper?

May 11, 2022

by Raffael Mendes

CORE

· 6,361 Views · 2 Likes

Ultra-Fast Microservices: When MicroStream Meets Wildfly

In the second part of the ultra-fast series, In this article, learn a new database that can make your microservices scale up quickly in the Java world!

Updated May 10, 2022

by Otavio Santana

CORE

· 17,416 Views · 9 Likes

Is Java Still Relevant?

Java is widely used in different ways, especially by popular platforms you might often use, such as Twitter, Google, Amazon, Spotify, and YouTube.

Updated May 9, 2022

by Swathi Nelabhatla

· 60,227 Views · 24 Likes

Comparing Akka Streams, Kafka Streams and Spark Streaming

We'll discuss the pros and cons of the frameworks and which to use when.

Updated May 9, 2022

by Daniel Ciocirlan

· 21,437 Views · 3 Likes

How to Leverage Method Chaining To Add Smart Message Routing in Java

This article explores how to use method chaining to add routing information to serialized data structures in a lightweight fashion, where the routing information can be read separately by an intelligent message router.

May 9, 2022

by Rob Austin

CORE

· 5,730 Views · 8 Likes

How to Select Date From Datepicker in Selenium Webdriver Using Java

This article will explore a test case demonstrating how to select a date from a datepicker in Selenium Webdriver using Java.

May 9, 2022

by Garima Tiwari

· 4,455 Views · 2 Likes

Maven Tutorial: Nice and Easy [Video]

Want a fun and engaging intro to the Maven build ecosystem? Check out this live-coding session on a new episode of "Marco Codes."

May 6, 2022

by Marco Behler

CORE

· 8,512 Views · 11 Likes

An Overview of 3 Java Embedded Databases

Embedded databases move management from standalone systems to your app. Let's take a look at HSQLDB, H2, and Apache Derby to see how they can work with Java apps.

Updated May 5, 2022

by Swathi Prasad

· 88,801 Views · 23 Likes