Trouble with Unicode Chars

Question

Hi all,
I am having trouble displaying Unicode chars both in an Applet and in the command prompt window. I am using awt. The characters I want to display are: \u2228, \u2283, \u2261. These characters display correctly from AppletViewer when I add them to ChoiceBoxes, they display correctly in some browsers (isn't Unicode fairly universal by now? Do most browsers support it?), but not correctly when I try to put them into a TextField, using this simple code:
public void keyTyped(KeyEvent e) {
if(e.getKeyChar() == '/') {
e.setKeyChar('\u2228');
if(e.getKeyChar() == '.') {
e.setKeyChar('\u2283');
System.out.println(e.getKeyChar());
if(e.getKeyChar() == ',') {
e.setKeyChar('\u2261');
System.out.println(e.getKeyChar());
Any help is greatly appreciated, thanks!

Answer 1

Er, forgot to mention, the chars display as either a
black bar, sort of a square, This happens when there is no suitable font for the codepoint, and the system doesn't know how to convert a codepoint to another codepoint for which there is a suitable font. The latter mechanism allow to use non-unicode fonts with unicode chars.
a question mark, That's possibly another issue. '?' usually appears while
converting chara�ter into bytes, specifically if an encoding doesn't have an appropriate rule for a particular character.
For example, the "Cp1251" encoding knows nothing of Greek characters, and so converts them into ?'s.
Such conversion may occur when a java string is passed
into a native window system, because such systems often are non-unicode.
and an equal signCompletely illegal behaviour, usually occurs in very old JVM's.
Note that Swing is always correct with unicode.
A relevant documentation is here:
http://java.sun.com/j2se/1.3/docs/guide/intl/addingfonts.html
and
http://java.sun.com/j2se/1.3/docs/guide/intl/fontprop.html