problem printing unicode in java

[soph]

I need to print some Chinese characters in unicode, but I need to
generate them dynamically from their hex values. I've been trying to
do it by appending strings, i.e. character = "\\u" + "7557", but when
I print this it prints exactly "\u7557" instead of the character that
that should represent. Any suggestions?

Thanks!

 

[Arne Vajhøj]

I need to print some Chinese characters in unicode, but I need to
generate them dynamically from their hex values. I've been trying to
do it by appending strings, i.e. character = "\\u" + "7557", but when
I print this it prints exactly "\u7557" instead of the character that
that should represent. Any suggestions?

(char)Integer.parseInt("7557", 16)

must be one way.

Arne

 

[John B. Matthews]

I need to print some Chinese characters in unicode, but I need to
generate them dynamically from their hex values. I've been trying to
do it by appending strings, i.e. character = "\\u" + "7557", but when
I print this it prints exactly "\u7557" instead of the character that
that should represent. Any suggestions?

Appending just "\u7557" should do:

<http://java.sun.com/docs/books/jls/third_edition/html/lexical.html#3.3>

 

[soph]

Appending just "\u7557" should do:

<http://java.sun.com/docs/books/jls/third_edition/html/lexical.html#3.3>

I get an error if i try to append just '\u'

 

[soph]

(char)Integer.parseInt("7557", 16)

must be one way.

Arne

this works, thanks a lot!

 

[Joshua Cranmer]

I need to print some Chinese characters in unicode, but I need to
generate them dynamically from their hex values. I've been trying to
do it by appending strings, i.e. character = "\\u" + "7557", but when
I print this it prints exactly "\u7557" instead of the character that
that should represent. Any suggestions?

As Mr. Vajhøj already said, (char)Integer.parseInt(hexCode, 16) would work.

Note that the \u**** codes are actually processed by the compiler before
the lexical scanning process, which can get you some fun discoveries:

jcranmer@quetzalcoatl ~ $ cat JLSTidbit.java
public class JLSTidbit {
public static void main(String... args) {
System.out.print("Line\n");
// \n == \u000A
System.out.print("Line\u000A");
}
}
jcranmer@quetzalcoatl ~ $ javac JLSTidbit.java
JLSTidbit.java:5: unclosed string literal
System.out.print("Line 2\u000A");
^
JLSTidbit.java:5: unclosed string literal
System.out.print("Line 2\u000A");
^
2 errors

 

[Stefan Ram]

I need to print some Chinese characters in unicode, but I need to
generate them dynamically from their hex values

There are no »hex values« - there are »hex numerals« and
»int values«.

Any suggestions?

public class Main
{ public static void main( final java.lang.String[] args )
{ java.lang.System.out.println
( new java.lang.String
( new int[]{ java.lang.Integer.parseInt( "41", 16 )}, 0, 1 )); }}

A

 

[John B. Matthews]

[Please trim signatures when responding.]

I get an error if i try to append just '\u'

Yep. "If an eligible \ is followed by u, or more than one u, and the
last u is not followed by four hexadecimal digits, then a compile-time
error occurs [Ibid.].

Joshua Cranmer offered some additional interesting finding, above.

 

[Knute Johnson]

I need to print some Chinese characters in unicode, but I need to
generate them dynamically from their hex values. I've been trying to
do it by appending strings, i.e. character = "\\u" + "7557", but when
I print this it prints exactly "\u7557" instead of the character that
that should represent. Any suggestions?

Thanks!

I'm curious, what font are you using?

Thanks,

 

[Arne Vajhøj]

I'm curious, what font are you using?

Are there any font where this is not the case?

Arne

 

[John B. Matthews]

I'm curious, what font are you using?

I found the glyph in fonts named Myungjo and GungSeo, as well as here:

<http://www.unicode.org/charts/PDF/U4E00.pdf>

 

[Knute Johnson]

Are there any font where this is not the case?

Arne

Arne:

No. I was just curious what font would have these characters. I don't
have any such fonts and I thought I could maybe find one somewhere if I
knew what it was.

 

[Knute Johnson]

I found the glyph in fonts named Myungjo and GungSeo, as well as here:

<http://www.unicode.org/charts/PDF/U4E00.pdf>

Thanks John, I'll see if I can find a copy somewhere.

 

[RedGrittyBrick]

Arne:

No. I was just curious what font would have these characters. I don't
have any such fonts and I thought I could maybe find one somewhere if I
knew what it was.

u7557 is one of the CJK unified ideographs. Many fonts have it. For
example, Arial Unicode MS and Bitstream Cyberbit. I assume many fonts in
use in the far east must include it.

 

[Knute Johnson]

u7557 is one of the CJK unified ideographs. Many fonts have it. For
example, Arial Unicode MS and Bitstream Cyberbit. I assume many fonts in
use in the far east must include it.

Thanks RGB. Believe or not, they charge $100 for Arial Unicode but
include it in MS Office.

 

[Roedy Green]

I need to print some Chinese characters in unicode, but I need to
generate them dynamically from their hex values. I've been trying to
do it by appending strings, i.e. character = "\\u" + "7557", but when
I print this it prints exactly "\u7557" instead of the character that
that should represent. Any suggestions

\uxxxx notation is what you use in text to feed to the Java compiler.
It is gone by the time your code is running.

to create them on the fly you would say things like

char c = '\u7757'; // note single quote

char c = (char) 0x7757;

char c = (char)30551; //0x7757 in decimal

char c = (char) someInt;


--
Roedy Green Canadian Mind Products
http://mindprod.com

"Species evolve exactly as if they were adapting as best they could to a changing world, and not at all as if they were moving toward a set goal."
~ George Gaylord Simpson