Java Resources

JDBC Tutorial Part 1: Connecting to a Database

In this series, learn the basics of Java Database Connectivity. In Part 1, learn what a JDBC driver is and how to open and safely close database connections.

Updated January 6, 2022

by Alejandro Duarte

CORE

· 36,248 Views · 8 Likes

Debugging RAM - Part 1: Java Garbage Collection - Java Heap Deep Dive

Java memory usage is a complex beast, in this first installment, I discuss the available GCs in modern Java and how we can benchmark/tune them.

January 5, 2022

by Shai Almog

CORE

· 7,011 Views · 4 Likes

How We Handled the Log4j Security Vulnerability

Learn how we used Lattix Architect to find instances of log4j in their codebase and estimate how long it would take them to patch and test it.

January 5, 2022

by Sean Barow

· 4,338 Views · 3 Likes

Lazy Load Design Pattern in Java: An Introduction and Implementation

Watch the video in the article below on lazy load design patterns in Java including an introduction and how to implement it for yourself.

January 4, 2022

by Ram N

· 3,917 Views · 5 Likes

NullPointerException in Java: Causes and Ways to Avoid It

This article explains what NullPointerException is with its common causes and best practices you can do to avoid NPE. Read on to find out more!

Updated January 4, 2022

by Dmitry Egorov

CORE

· 24,626 Views · 18 Likes

Distributing a Java Command-Line Application

In this article, I'll show you how to package and distribute a java command-line application and the challenges one has to face to implement it.

January 4, 2022

by Loïc Rouchon

· 10,412 Views · 7 Likes

Filter or Criteria Design Pattern in Java: An Introduction, Example, and Key points

In the video below, we take a closer look at Filter or Criteria Design Pattern in Java with an introduction, example, and key points.

January 4, 2022

by Ram N

· 4,354 Views · 4 Likes

Log4J Does What?

Today, we'll see an example of how this vulnerability actually works. We'll cover Log4J library usage and see how basic inputs can cause potentially disastrous outcomes.

Updated January 3, 2022

by Barak Merimovich

· 18,564 Views · 26 Likes

Context Object Design Pattern in Java: Introduction and Key Points

This video tutorial introduces the concept of Java context object design pattern, including supplemental demonstrations and explanations.

January 3, 2022

by Ram N

· 4,882 Views · 4 Likes

The First Annual Recap From JPA Buddy

This article tells the history behind one of the most trending IntelliJ IDEA plugin - JPA Buddy. Also, it provides some insights about issues using JPA, Hibernate, Spring Data, etc.

January 1, 2022

by Aleksey Stukalov

· 6,114 Views · 6 Likes

Java: Object Pool Design Pattern

In this Java video tutorial, take a closer look at Object Pool Design Pattern. This tutorial includes an introduction, example, and key points.

December 31, 2021

by Ram N

· 5,823 Views · 3 Likes

Where To Use the Underscore in Java

In this post of our series “Stranger things in Java” - dedicated to Java insights, we will try to clarify the use of the underscore symbol "_" in Java programming.

December 29, 2021

by Claudio De Sio Cesari

· 6,180 Views · 8 Likes

Fighting Fragility With Property-Based Testing

In traditional unit testing, we set up our tests around edge cases. Jqwik validates against a whole range of possible inputs, making it better at catching regressions.

December 24, 2021

by Jasper Sprengers

· 4,924 Views · 1 Like

Protecting Java Application From Stealing Data and Source Code

Reviewing classical ways to steal data from Java applications and how can you protect your application from such attacks.

Updated December 23, 2021

by Dmitry Egorov

CORE

· 19,423 Views · 23 Likes

Golang - First Look at Generics

This post is part of a series where I do my best to organize my thoughts around Go: its paradigms and usability as a programming language.

December 22, 2021

by George Aristy

· 11,242 Views · 2 Likes

Java: Why a Set Can Contain Duplicate Elements

Learn why Sets and Maps can contain duplicate elements and keys and how to avoid the problem in applications with object reuse.

December 21, 2021

by Per-Åke Minborg

· 11,477 Views · 4 Likes

How to Check if a Java Project Depends on A Vulnerable Version of Log4j

If your application uses Log4j from version 2.0-alpha1 to 2.14.1, you should update to the latest version (2.16.0 at the time of writing this) as soon as possible.

December 20, 2021

by Alejandro Duarte

CORE

· 12,527 Views · 6 Likes

Importance of Learning Java for Cybersecurity

Java is one of the most-used programming languages for applications, including cybersecurity. In this post, learn why Java is important to secure web design.

December 19, 2021

by Mahipalsinh Rana

· 8,521 Views · 1 Like

Java Media Player: Web Browser-Based Approach

A simple way to build Java Media Player using web browser capabilities.

December 14, 2021

by Vladimir Ikryanov

· 7,325 Views · 5 Likes

WebFlux and Spring Data Example for Java Records

Look at the characteristics and benefits of Java records and see how to use them to develop a REST API and query a database.

December 13, 2021

by Jimena Garbarino

· 6,114 Views · 2 Likes

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