I'm trying to write this unicode cross symbol (𐀵) in Java:
class A {
public static void main(String[] args) {
System.out.println("\u2300");
System.out.println("\u10035");
}
}
I can write o with a line through it (⌀) just fine, but the cross symbol doesn't show up, instead it just prints the number 5:
# javac A.java && java A
⌀
ဃ5
Why?
You're looking for U+10035, which is outside the Basic Multilingual Plane. That means you can't use \u
to specify the value, as that only deals with U+0000 to U+FFFF - there are always exactly four hex digits after \u
. So currently you've got U+1003 ("MYANMAR LETTER GHA") followed by '5'.
Unfortunately Java doesn't provide a string literal form which makes characters outside the BMP simple to express. The only way of including it in a literal (but still in ASCII) is to use the UTF-16 surrogate pair form:
String cross = "\ud800\udc35";
Alternatively, you could use the 32-bit code point form as an int
:
String cross = new String(new int[] { 0x10035 }, 0, 1);
(These two strings are equal.)
Having said all that, your console would still need to support that character - you'll need to try it to find out whether or not it does.
I believe Java represents Unicode characters from 0x0000
to 0xFFFF
. Java would evaluate "\u10035"
to whatever "\u1003"
is and a 5 after that.
0x10035 is a supplemental Unicode character. You'll need to font that supports it if you want your program to render it.
http://www.oracle.com/technetwork/articles/javase/supplementary-142654.html
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