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Binary and hexadecimal numbers explained for developers

For developers who are intimidated by bit shifts and hex operation, here's a thorough explanation of how binary and hexadecimal number systems work.

A 12-factor app principles quiz for cloud-native developers

The 12-factor app principles are a must for those who perform cloud-native development. Try your hand at this 12-factor quiz to test your knowledge on the fundamentals.

Problems with Java modules still plague developers

The Java Platform Module System promised to fix the missteps of the past. Unfortunately, it has repeated the problems that plagued OSGi and JBoss Modules.

How to git revert and fix your code base

The git revert command is commonly misunderstood. In this quick tutorial, we will show you exactly how the command works and how to perform a simple undo in your repo.

Iterator vs. ListIterator: Which interface should you choose?

When the need exists to manipulate an ordered collection, the Java Iterator runs out of steam. Learn how Java's ListIterator improves upon the more generic Iterator interface.

Coffee Talk: News & Insight

The psychology of offering programming advice to developers
Joseph Ottinger 20 Dec 2021
Need to provide programming advice, or perhaps even harsh criticisms to a team of developers? Here's a nice way, pyscyhologically sound, way to do it.
Quickly learn how Kubernetes Operators work from this example
Bob Reselman 06 Dec 2021
Kubernetes (K8S) has become a very popular technology for working with distributed applications that run on the internet. K8S is intended to support an ...
Top 5 things to know about the Jakarta Servlet 6.0 API release
Greg Wilkins 29 Nov 2021
Jakarta EE 10 includes a full increment release of the Servlet API. Here are the top 5 features Java devs will enjoy when the Jakarta Servlet 6.0 API arrives.
What is Kubernetes vs Docker Compose? How these DevOps tools compare
Bob Reselman 29 Nov 2021
Confused between the difference between Kubernetes and Docker compose? Here we explain how the two DevOps construct are similar, and how they are different.
How to delete a Git repository
Cameron McKenzie 29 Nov 2021
Trying to delete a local Git repository but the DVCS system still persists? Here's a quick example of how to locally remove a Git repo permanently and ...
How to use jarsigner to sign JARs files example
Cameron McKenzie 29 Nov 2021
Here's a quick example of how to use Java's jarsigner to digitially sign JAR files.
How to use Java's javap tool by example
Cameron McKenzie 29 Nov 2021
Need to disassemble a Java class file? Want to look at the bytecode instructions generated from compiling source? These javap tool examples will show you how ...
How to import a Maven project from GitHub into Eclipse
Cameron McKenzie 29 Nov 2021
Here's a quick tutorial that shows you how to import a GitHub hosted Maven project into the Eclipse IDE.
What's the difference between containerd and Docker?
Bob Reselman 29 Nov 2021
What's the difference between containerd and Docker? Here we take a look at how these two cloud-native Kubernetes friendly technologies differ and compare.
The 5 things devs should know about the Jakarta Servlet 6.0 API release
Cameron McKenzie 29 Nov 2021
Jakarta EE 10 includes a full increment release of the Servlet API. Here are the top 5 features Java devs will enjoy when the Jakarta Servlet 6.0 API arrives.