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Accept unicode Input from user in java  RSS feed

 
Mahesh Kedari
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Hi All
I am designing a multilingual desktop application. My Requirement is, i want to allow your to enter unicode input in application.
Currently i am using one external application called "Baraha Script" for input. But i wanted to create my own java code which will allow user to enter the data in selected language.
Can anyone help me for the same, or at least give a pointer for studies?

Thanks.
Mahesh
 
Campbell Ritchie
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Welcome to JavaRanch

Have you found the appropriate page in the Unicode charts? Can you get it to print on a JOptionPane?I chose Hebrew because it has few letters (22) which form a continuous series so you won't get any rectangles in your output.
 
Mahesh Kedari
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Thanks alot Campbell for reply, but the code that you have posted is for displaying unicode data in java.
I wanted to accept the input from user.
 
Campbell Ritchie
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Sounds like the sort of thing you can use a JOptionPane input dialog, or a JTextField, or similar for. Have you tried any of them?
 
Oliver Brocker
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I have the same issue. Copy&paste 'special' unicodes into an JInputField in my application leads to squares. Doing the same with a test snippet works fine. Any idea why this happens?

You can try it with युनिकोड


Edit:
Windows7 64bit german: c&p युनिकोड fails, c&p ныя сымбалі works fine
Mint13 Cinnamon german 32bit: c&p युनिकोड works fine, c&p ныя сымбалі works fine, too

 
Tony Docherty
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It may be that default font being used by JOptionPane can't display those characters. I just pasted them into a JTextField in an application I wrote to handle multiple languages and it worked for me. See below:
text.png
[Thumbnail for text.png]
Language Test
 
Oliver Brocker
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Thank you for your reply. You're probably right. It very likely depends on the fonts installed on the client PC.
So I don't think it's an issue of my application, and unfortunately there's nothing I could do.

Edit:
I think about it and there something I do not get. If it's a font related issue, why are Firefox, MS Word, MS Notepad and other applications on the Client PC able to display the characters, but my application is not?
 
Tony Docherty
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Possibly because the font that the Java option pane is using is a logical font and logical fonts get mapped to a physical font on your system. It maybe those applications are using a font which supports that character set but the logical font is being mapped to font(s) (I seem to remember it maps to multiple fonts to get a greater range of possible character sets) that does not support the required characters.

To test this write a simple gui app with a text field which you set to use a physical font which you know works (ie the one notepad is using). Then cut and paste the text from notepad to your text field.
 
Oliver Brocker
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A good idea and I've tried it and now I'm totally confused. The same font is working in MS Notepad, but not in JTextField.
font.png
[Thumbnail for font.png]
Font test
 
Oliver Brocker
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Any help would be greatly appreciated
 
Paul Clapham
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Have you looked at all the fonts supported by your Java implementation to see if "Lucida Console" is one of them?
 
It is sorta covered in the JavaRanch Style Guide.
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