Java Resources

A summary of the Log4j vulnerability and key takeaways for SREs to help with security implications and planning for events that may disable critical systems.

January 10, 2022

by Weihan Li

· 4,394 Views · 4 Likes

A Tentative Comparison of Fault Tolerance Libraries on the JVM

From a number of libraries implementing fault tolerance features on the JVM, this post will look at Microprofile Fault Tolerance, Failsafe, and Resilience4J.

January 10, 2022

by Nicolas Fränkel

CORE

· 3,072 Views · 5 Likes

Using GraphQL Java With Spring

This blog post will cover how to use GraphQL Java within a Spring application that exposes an endpoint for clients to send queries to.

January 10, 2022

by Dan Newton

· 4,969 Views · 6 Likes

Java 17 for the Impatient

Learn the basics of Java 17.

January 8, 2022

by Abhishek Giri

· 13,852 Views · 6 Likes

The Quickest Way to Create an Android QR Code Scanner

Learn the quickest way to create an Android QR code scanner. See a step-by-step implementation camera preview, as well as how to integrate QR code scanning SDK.

January 8, 2022

by Xiao Ling

· 4,596 Views · 2 Likes

Business Delegate Design Pattern in Java

Here, explore the Business Delegate Design Pattern in Java. This video tutorial includes an introduction, real-time example, implementation, and key points.

January 8, 2022

by Ram N

· 4,183 Views · 4 Likes

Protect Your Invariants!

This tutorial shows you how to handle constraints and validation inside your application. Read below to find out how this way can help you!

January 7, 2022

by Oresztesz Margaritisz

CORE

· 6,639 Views · 31 Likes

Composite Design Pattern in Java

Here, take a closer look at the Composite Design Pattern in Java. This video tutorial includes an introduction, class diagram, example, and key points.

January 6, 2022

by Ram N

· 4,583 Views · 5 Likes

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

· 35,849 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

· 6,891 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

· 4,237 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

· 3,796 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

· 24,331 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

· 10,120 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

· 4,245 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

· 18,437 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

· 4,724 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

· 5,951 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

· 5,669 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

· 6,064 Views · 8 Likes

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