Java

Building A Logo Turtle App With Antlr And JavaFX

This post is about building a very simple application, implementing a subset of the Logo Programming Language along with a UI that visualizes the Logo programms entered by users.The technologies used were Antlr for creating a parser for a subset of the Logo rules and also JavaFX for creating a…

Posted on 6th June 20206th June 2020 by nikkatsa

Java

For Loops, Allocations and Escape Analysis

For Loops, Allocations and Escape Analysis For Java applications in certain domains it is truly important that the creation of objects/garbage stays at a minimum. Those applications usually cannot afford GC pauses, hence they use specific techniques and methodologies to avoid any garbage creation. One of those techniques has to…

Posted on 8th March 20208th March 2020 by nikkatsa

Java

Java, The Cost of a Single Element Loop

In quite a few cases I have seen myself designing code with listeners and callbacks. It is quite common for a class that emits events, to expose an API to attach listener(s) to it. Those listeners are usually stored in a data structure (see List, Set, Array) and when an…

Posted on 27th October 201927th October 2019 by nikkatsa

Java

Identifying a high-CPU Java Thread

High CPU utilization Java application Every now and then we find ourselves in situations when a single Java process is consuming a high percentage of CPU. After investigating and ruling out high CPU because of continuous GC cycles or other pathogenic reasons, we find ourselves in a situation that we…

Posted on 3rd March 20199th March 2020 by nikkatsa

Java

Python UnPickling in Java

Sometimes, applications, are necessary to interact with the serialized form of a different language. This usually happens in the persistence layer. Ideally, the form chosen for persistence should be cross platform (i.e protobufs), but unfortunately the reality is that sometimes the developer has no control over it or he/she needs…

Posted on 8th January 2017 by nikkatsa

Java

Java 9 Process API

In a previous blog post I wrote about one of my favourite features of Java 9, the JShell. At this post, I will write about another feature I am excited about. The new Java 9 Process API. I will also present some code showing how powerful and intuitive it is.…

Posted on 7th December 20167th December 2016 by nikkatsa

Java

JShell

As of now, Java 9 official release date is 27.07.2017. According to openJDK mailing list the push back was due to the most anticipated feature of Java 9, which is the modularisation of the JDK or commonly known as Project Jigsaw. (more…)

Posted on 1st December 20161st December 2016 by nikkatsa

Java

JDK Evolution

I know for fact that many people (especially in the financial technology industry) are very skeptical when a new version of Java is released. People, actually persist to update their Java version (even the JRE version) for many years. There are a lot of places that are still using Java…

Category: Java

Java

Building A Logo Turtle App With Antlr And JavaFX

Posted on 6th June 20206th June 2020 by nikkatsa

Java

For Loops, Allocations and Escape Analysis

Posted on 8th March 20208th March 2020 by nikkatsa

Java

Java, The Cost of a Single Element Loop

Posted on 27th October 201927th October 2019 by nikkatsa

Java

Identifying a high-CPU Java Thread

Posted on 3rd March 20199th March 2020 by nikkatsa

Java

Python UnPickling in Java

Posted on 8th January 2017 by nikkatsa

Java

Java 9 Process API

Posted on 7th December 20167th December 2016 by nikkatsa

Java

JShell

Posted on 1st December 20161st December 2016 by nikkatsa

Java

JDK Evolution

Posted on 4th September 20164th September 2016 by nikkatsa