In some ways, Java was the key language for machine learning and AI before Python stole its crown. Important pieces of the data science ecosystem, like Apache Spark, started out in the Java universe.
That Python is the dominant programming language for VS Code is not even open for debate, backed up by a quick glance at the open-source-based code editor's marketplace, where five of the six most ...
The fundamental technique has been studied for decades, thus creating a huge amount of information and alternate variations that make it hard to tell what is key vs. non-essential information.