My PMP Certification Experience (and e-book)
Last week, I finally released my PMP study notes as an e-book. In the Books page, there are links to all the stores I usually publish.The PMP exam is one of the toughest exams I ever sit, mainly...
View ArticleWhat a full-stack developer needs to know?
Full-stack developers are in demand. To be one you need to have a very wide technical profile.And that’s the way it should be. A developer must be capable of handling any kind of task, be it back-end...
View ArticleOCPJ8 Book Update 1
I promised I’ll write a book about the OCPJ8 exam. The most easy way would be to reformat my OCPJ8 notes, change or add some examples, maybe rewrite some parts, and launch it.But in the end, I chose to...
View ArticleOCPJ8 Book Update 2
It took me more than one week but I finally released the first draft of my book about the OCPJ8 certification.Here’s the Leanpub link https://leanpub.com/java8-programmer-ii-study-guide.You can...
View Articlejavapracticequestions.com is temporarily down
The site javapracticequestions.com is temporarily down while I work on making it better.Until now, it had been just a promotional site for my java 7 certification books, but now that java 8 is out,...
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Building a mini Twitter clone with Spark
The complete code of this application is available on GitHub. What you will learnIn this tutorial, you will learn how to create a web application using Spark (the web microframework, not Apache Spark)...
View ArticleMy OCPJ8 Book is published!
My study guide for the OCPJ 8 certification is finally published.I started the book in last July and everything was going fine, but from September to December, a complicated project attracted all my...
View ArticleIntroduction to testing with BDD and the Spock Framework
Two weeks ago, I wrote an article in hack.guides() about testing with the Spock Framework and using Behavior-Driven Development (BDD).Yesterday, the article was published in the main page (it was in...
View ArticleA Practical Introduction to RethinkDB
There’s a tutorial writing contest in hack.guides(). Basically, you have to write a tutorial using one (or more) of the following APIs:Amazon AlexaFanoutHelloSignHorizon CloudIonicKeen.ioPluralsight...
View ArticleBuilding an application with React and Horizon.io
I wrote another tutorial for the hack.guides() contest. This time it’s about integrating Horizon.io with React and React Router using OAuth for authentication.You can read it here and the source code...
View ArticleGetting started with Selenium and Sauce Labs
I wrote another tutorial for the hack.guides() contest. This time it’s about creating tests with Selenium and Sauce Labs in Java.You can read it here and the source code of the app is available on...
View ArticleVisualizing tweets with PubNub and CSS3
I wrote another tutorial for the hack.guides() contest. This time it’s about visualizing tweets in real-time using PubNub’s Stream Controller, CSS3 animations, and a Node.js stack.You can read it here...
View ArticleE-signatures in a chat with Pusher, HelloSign, and Spring Boot
I wrote another tutorial for the hack.guides() contest. This time it’s about requesting e-signatures in a chat with Pusher and HelloSign, using a Java stack with Spring Boot.You can read it here and...
View ArticleSMS Sentiment Visualization with Twilio, Fanout Cloud, and React
I wrote another tutorial for the hack.guides() contest. This time it’s about visualizing SMS sentiment in real-time using Twilio, Fanout Cloud, Isomorphic React, and a Node.js stack.You can read it...
View ArticleProof of Existence in the Blockchain with Tierion, RethinkDB, PubNub
I wrote another tutorial for the hack.guides() contest. This time it’s about building a Proof of Existence-like app with Tierion, RethinkDB, PubNub, and a Node.js stack.You can read it here and the...
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Becoming a Pluralsight Author
I remember the first Pluralsight course I watched.It was almost five years ago, in 2012. I don’t really remember much about the application we were developing, but the UI needed a lot of interactivity...
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Using Oracle in a Docker Container
Think of a Docker container as a lightweight virtual machine.By using a text file named Dockerfile, you can describe everything this lightweight virtual machine should contain.From this Dockerfile, you...
View ArticleA New Course About Project Reactor Is Coming
For the last five years, I’ve been producing courses for Pluralsight.It’s a great company to work with, but when you work with (or for) someone else, you don’t get a lot of flexibility (for example, to...
View ArticleMy New Book About Project Reactor Is Ready, Read It For Free
Well, it’s better late than never.Over the past year, I’ve been diligently working in my free time to create a course about Project Reactor.Ultimately, I decided to write a book first. You can read it...
View ArticleNew Java Study Guides
Last December (2023), I began working in my free time on a guide for the Java 17 certification exam.Since I already had a guide for the second Java 8 certification exam, I thought I could reuse most of...
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