you know every character has its Unicode value.
Before Unicode, there were many language standards:
- ASCII (American Standard Code for Information Interchange) for the United States.
- ISO 8859-1 for Western European Language.
- KOI-8 for Russian.
- GB18030 and BIG-5 for chinese, and so on.
In unicode, character holds 2 byte, so java also uses 2 byte for characters. Continue reading