MD Sayem Ahmed

Sayem is an experienced software developer who loves to work with anything related to the internet. He has worked in various domains using a large number of programming languages. Although he specially likes to work with Java and JavaScript, he enjoys working with other languages too.

Enterprise Java
MD Sayem AhmedApril 30th, 2020
0 325
Clean Code from the Trenches – Writing Executable Specifications with JUnit 5, Mockito, and AssertJ
Executable Specifications are tests that can also serve as design specifications. They enable technical and business teams to get on…
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DevOps
MD Sayem AhmedFebruary 18th, 2020
0 152
A Beginner-friendly Introduction to Kubernetes for Developers: What is Kubernetes?
Just a few months ago, I had the chance to get my hands dirty with Kubernetes for the very first…
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Core Java
MD Sayem AhmedJanuary 17th, 2019
0 122
Different States of Java Threads
Introduction In Java, threads can have States. The Thread.State enum defines the different states that a Java thread can have.…
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Core Java
MD Sayem AhmedJanuary 1st, 2019
0 134
A brief overview of the Fork/Join Framework in Java
Introduction The Fork/Join framework is a framework to solve a problem using a concurrent divide-and-conquer approach. They were introduced to…
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Core Java
MD Sayem AhmedMay 2nd, 2018
0 535
Java Tips: Creating a Monitoring-friendly ExecutorService
In this article we will be extending an ExecutorService implementation with monitoring capabilities. This monitoring capability will help us to measure…
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Enterprise Java
MD Sayem AhmedApril 24th, 2018
2 387
JPA Tips: Avoiding the N + 1 select problem
Introduction ORM frameworks like JPA simplifies our development process by helping us to avoid lots of boilerplate code during the…
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Enterprise Java
MD Sayem AhmedNovember 2nd, 2017
0 55
Replacing exceptions with error notifications during input validation in Java
In my previous article I wrote about an input validation design which replaces hard-to-maintain-and-test if-else blocks. However, as some readers pointed…
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Enterprise Java
MD Sayem AhmedMay 12th, 2017
0 60
Clean Code from the trenches
Clean Code from the trenches – Validation Let’s directly start with an example. Consider a simple web service which allows…
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Enterprise Java
MD Sayem AhmedMarch 7th, 2017
1 428
Dealing with Java’s LocalDateTime in JPA
A few days ago I ran into a problem while dealing with a LocalDateTime attribute in JPA. In this blog post…
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