Due to my passion for various programming paradigms, I first became interested in DSLs back in 1999. A Domain Specific Language (DSL) is a programming language specialized for a particular application domain. …

An expert system is software that attempts to recreate the decision-making process of a human expert in a particular domain. Expert systems are often used in fields such as medicine, finance, and engineering, where rapid and complex decision-making is required. Expert systems are composed of three main elements: 1. A…

The toStringmethod is a fundamental method of the Object class in Java. This method returns a textual representation of the object. To use the String.toString() correctly, it is important to follow some rules. First, the toString method must be appropriately overridden in subclasses. …

PySysop https://github.com/mcaliman/PySysop is a Python system operations collection utility, restore_remote_database.py is the script for create remote database dump, and download and restore to localhost instance. My project is a work in progress. Stay tuned! Next implementation? What would you like me to add? You can find this post and others on my blog: trueprogramming.com

Does Java have an implementation for complex numbers? No, it doesn’t have a dedicated Class. It’s strange but not all that strange (Complex Number implementation is trivial), the JDK does not have one but here is an implementation I have written: https://github.com/mcaliman/JavaComplexNumber However, there are third-party libraries for working with Complex, for example: Apache Commons http://commons.apache.org/proper/commons-math/userguide/complex.html

Open terminal via Ctrl+Alt+T. When it opens, run the command: sudo apt-get install python3 sudo apt-get install idle3 sudo apt-get install python3-pip You can find this post and others on my blog: trueprogramming.com

Open terminal via Ctrl+Alt+T. When it opens, run the command: sudo uname -m Will give “x86_64” for 64 bit, and something else for other 32 bit types(usually “i686”). You can find this post and others on my blog: trueprogramming.com

Once upon a time a NullPointerException… There are two simple, elegant, clean methods to manage null with Predicate: Object.isNull and Object.nonNull. It’s much easier and clearer to write: stream.filter(Objects::isNull) than to write: stream.filter(x -> x == null) However, the fact that Objects.isNull is meant for Predicates does not prevent you from using it as above… Your code might be more readable in this fashion.

Do you have stuff like that in your code? string = string == null ? “” : string; or like this one… if(string==null) string=""; or, more smart, did you create a method like this? String ifNullThenEmpty(String string) { return string == null ? "" : string; } You can put…