Data analysis involves inspecting, cleaning, transforming, and modeling data in order to discover useful information. For example, by inspecting pedal length, you might find it to be a good indicator of iris type.
Java is a class-based, object-oriented programming language similar to C++.
To compile (class name must be the same as file name):
$ javac HelloWorld.java
To run:
$ java HelloWorld
Keras is a high-level deep learning API framework for machine learning platforms such as TensorFlow.
Docs.
Everything in Linux is a file!