Why java uses Unicode System?
unicode system that use to encoded the byte code .
| 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.
|
This caused two problems:
- A particular code value corresponds to different letters in the various language standards.
- The encodings for languages with large character sets have variable length.Some common characters are encoded as single bytes, other require two or more byte.
|
| To solve these problems, a new language standard was developed i.e. Unicode System. |
| In unicode, character holds 2 byte, so java also uses 2 byte for characters. |
| lowest value:\u0000 |
| highest value:\uFFFF |
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