I'd like to write unicode literal U+10428 in Java. http://www.marathon-studios.com/unicode/U10428/Deseret_Small_Letter_Long_I
I tried with '\u10428' and it doesn't compile.
Asked
Active
Viewed 4,613 times
12
-
possible duplicate of [Print string literal unicode as the actual character](http://stackoverflow.com/questions/1402877/print-string-literal-unicode-as-the-actual-character) – rageandqq Jul 08 '14 at 13:36
-
1the "\u" format is hexidecimal, not decimal. – jtahlborn Jul 08 '14 at 13:40
-
I think this is a different question. – kawty Jul 08 '14 at 13:41
-
Yes, and it seems that U+10428 is hex. @jtahlborn – kawty Jul 08 '14 at 13:42
-
3-Byte Unicode is a terrible term for U+10000 and above (because 10000 is not bytes). But, if that's what brought you here, you'll probably find your answer. – Tom Blodget Oct 29 '17 at 17:27
1 Answers
22
Because Java went full-out unicode when people thought 64K are enough for everyone (Where did one hear such before?), they started out with UCS-2 and later upgraded to UTF-16.
But they never bothered to add an escape sequence for unicode characters outside the BMP.
Thus, your only recourse is manually recoding to a UTF-16 surrogate-pair and using two UTF-16 escapes.
Your example codepoint U+10428 is "\uD801\uDC28".
I used this site for the recoding: https://rishida.net/tools/conversion/
3.10.5 String Literals
A string literal consists of zero or more characters enclosed in double quotes. Characters may be represented by escape sequences (§3.10.6) - one escape sequence for characters in the range U+0000 to U+FFFF, two escape sequences for the UTF-16 surrogate code units of characters in the range U+010000 to U+10FFFF.
Deduplicator
- 44,692
- 7
- 66
- 118
-
5In Java, it cannot. Anyway, be careful of "one character": Depending on context (which is sometimes absent or too ambiguous), it can mean anything of byte, codeunit, codepoint and grapheme. – Deduplicator Jul 08 '14 at 18:16