Re: Shift-JIS/Unicode mapping in JAVA

From: Philippe Verdy (
Date: Thu May 29 2003 - 06:56:58 EDT

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    From: "Kazuhiro Kazama" <>
    > From: Jane Liu <>
    > Subject: Shift-JIS/Unicode mapping in JAVA
    > Date: Wed, 28 May 2003 12:36:39 -0700 (PDT)
    > Message-ID: <>
    > > I am running a JAVA program on Japanese Windows 2000 system, looking
    > > at the Unicode conversion of the following four characters from
    > > Shift-JIS encoding (MS-CP932) in both JRE 1.3.1 and JRE 1.4.1, and
    > > noticed some interesting changes:
    > I guess that you used the charset name "Shift_JIS". Would you try to
    > use "Windows-31J"?

    I think that the canonical name of this encoding should be used, as "Windows-31J" is very uncommon.
    So it seems better to designate the encoding with "CP932", or "windows-932", which Windows and Internet Explorer also prefers (and probably many other browsers).

    It is true that MS-CP932 is NOT Shift-JIS, even if it's mostly compatible with it. It was created a long time ago as an extension of an *old* version of the JIS standard, and includes characters that have been later integrated in Shift_JIS. The current version of Shift_JIS has now more characters than the Microsoft codepage 932, but MS-CP932 also includes some characters defined in all Microsoft codepages and that are still missing from Shift_JIS and won't be added now that Shift_JIS has been deprecated by a newer version that includes support for all UniHan and Unicode/ISO10646 characters.

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