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expression in Java

expression in Java# Programming - 葵花宝典

s*i2005-03-17 08:03

1 楼

String b = "\u000A"; is syntax error.
String b = "\u0009"; is right,
String b = "\u001A"; is right too.
why?
How to input "\u000A" into a variable?
thx

d*p2005-03-17 08:03

2 楼

http://java.sun.com/docs/books/jls/second_edition/html/lexical.doc.html#100960
Because Unicode escapes are processed very early, it is not correct to
write '\u000a' for a character literal whose value is linefeed (LF); the
Unicode escape \u000a is transformed into an actual linefeed in translation
step 1 (§3.3) and the linefeed becomes a LineTerminator in step 2 (§3.4),
and so the character literal is not valid in step 3. Instead, one should
use the escape sequence '\n' (§3.10.6). Similarly, it

【在 s*****i 的大作中提到】

: String b = "\u000A"; is syntax error.
: String b = "\u0009"; is right,
: String b = "\u001A"; is right too.
: why?
: How to input "\u000A" into a variable?
: thx