Beginner’s Guide to Encoding Categorical Data: Visuals and Code Example. ... Color Color_Encoded 0 Red 1 1 Blue 2 2 Green 2 3 Blue 2 4 Green 2 . Choosing the Right Encoding Method.

Source code for the Java Development Kit (JDK) would be redone in UTF-8 (Unicode Transformation Format) to facilitate better-defined encoding, under a plan afoot in the OpenJDK Java community.