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How I got Docker Certified – DCA

Docker Certified Associate - DCA
Views: 4,832
Reading Time: 7 minutes

I recently passed the Docker Certified Associate (DCA) exam and wanted to share not only my road to Docker experience but also what resources I used in prepping for the exam – sorry, no exam dumps! Unfortunately, I wasted time getting lost in the noise of online forums and the marketing hype of practice exams. I’ll give you some tips that will help you steer away from those pitfalls.

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Spring Nested Transactions

Nested Transaction in Spring
Views: 25,218
Reading Time: 10 minutes

Spring nested transactions are a bit like the black sheep of the transaction family – easily misunderstood and cast aside in documentation. Nested transactions are however incredibly useful for use cases consisting of large bulk updates and/or operating over unreliable connections. Let’s take a look at how we can bring this black sheep back …  Continue reading “Spring Nested Transactions”

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Generating a Random Number in Java From Atmospheric Noise

Java Random Number From Atmospheric Noise - MVP Java
Views: 27,859
Reading Time: 5 minutes

When it comes to generating a random number in Java, we have several options. However I doubt none are as intriguing or as random as what you’ll learn about in this post.  If your interested in how to generate a truly random number in Java by using the earth’s atmospheric noise as it source, then read on … Continue reading “Generating a Random Number in Java From Atmospheric Noise”