February 2013
Intermediate to advanced
672 pages
16h 2m
English
book
The Java® Language Specification, Java SE 7 Edition, Fourth Edition
by James Gosling, Bill Joy, Guy Steele, Gilad Bracha, Alex Buckley
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3.3. Unicode Escapes
A compiler for the Java programming language (“Java compiler”) first recognizes Unicode escapes in its input, translating the ASCII characters \u followed by four hexadecimal digits to the UTF-16 code unit (§3.1) of the indicated hexadecimal value, and passing all other characters unchanged. Representing supplementary characters requires two consecutive Unicode escapes. This translation step results in a sequence of Unicode input characters.
UnicodeInputCharacter: UnicodeEscape RawInputCharacterUnicodeEscape: \ UnicodeMarker HexDigit HexDigit HexDigit HexDigitUnicodeMarker: u UnicodeMarker uRawInputCharacter: any Unicode characterHexDigit: one of 0 1 2 3 4 5 6 7 8 9 a b c d e f A B C D E F
The \, u, and ...
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