> java -Dfile.encoding="UTF-8" package.myClass
>
> Doing this results in puffed up visual widgets,
Are they 'puffed up' to accommodate the font size?
Perhaps it would help provide a short example.

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> I run the app with the following command line
>
[quoted text clipped - 3 lines]
> height is increased, the same for labels, fields, text area. All the
> GUI looks totally bloated.
The file encoding - which is for file I/O - has nothing to do with what
happens inside Java or the GUI. Java always used Unicode characters
internally and for the GUI. Changing the file I/O encoding has no impact
on the encoding used in Java or the GUI per-se.
There is something else going wrong in your code. Maybe you read data
from a file which is later displayed. By changing the file encoding the
data in the file gets already misinterpreted when it is read. You later
display the data. Since it got misinterpreted when it was read it refers
to other characters. These other characters might force the layout
managers in the GUI to dynamically adapt the GUI to accommodate
different character sizes.
Very likely there is nothing wrong in the GUI, and everything wrong in
the way you do file I/O. It is already a bad idea to require that a file
encoding needs to be specified on the command line. You could revise
your code.
> How can we correct this problem?
Follow this advice
<http://www.physci.org/codes/sscce.jsp>
and show us code demonstrating the problem. Not any code, but code which
is in line with the above referred advice.
/Thomas

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ravi.k.sinha@gmail.com - 28 Jun 2005 12:45 GMT
Hi Thomas,
I would have loved to give some code, but there is nothing special in
the code. We are using a set of input methods that enables us to
provide input in Indian languages. These are in the form of jar files,
which specify the input characteristics of various Indian Languages.
All these Jar files lie in extention directory inside the JRE.
Now if i don't explicitly set the file encoding, there is no problem
locally. But when the same data comes on the Java socket (Application
is distributed, needs to send messages in local languages some times)
then the data is all garbled, questions marks or usual rectangles, in
the GUI.
In the system menu, a item gets installed automatically when an app is
run giving access to various input methods.
In our application when an item is selected in the menu, we just change
the input method, and which is taken care of those classes lying in the
extention.
I have a hunch that some other setting is required which will dictate
the display of widgets.
I have two installations
1. 1.4.2_08 (Jars in extention)
2. 1.5.0_03 (No Jars)
With [1] the description remains same, but with [2] the same app is ok
Thanks everyone for the replies, but unfortunately I am still in the
haze.
Roedy Green - 29 Aug 2005 08:16 GMT
>Very likely there is nothing wrong in the GUI, and everything wrong in
>the way you do file I/O. It is already a bad idea to require that a file
>encoding needs to be specified on the command line. You could revise
>your code.
Normally you specify the encoding in your i/o code. See
http://mindprod.com/applets/fileio.html
for how to do it.

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> Hi,
>
[quoted text clipped - 4 lines]
>
> java -Dfile.encoding="UTF-8" package.myClass
AFAIK file.encoding does not have any impact on the Swing classes.
This is (only?) used by Reader and Writer implementations as the default encoding.
Thomas
Thomas Fritsch - 28 Jun 2005 14:46 GMT
>>Hi,
>>
[quoted text clipped - 9 lines]
>
> Thomas
Yes, the constructors
InputStreamReader(InputStream)
OutputStreamReader(OutputStream)
FileReader(...)
FileWriter(...)
-and may be some more?-
do so.
But furthermore the constructors
String(byte[])
String(byte[], int, int)
and the methods of String class
byte[] getBytes()
void getBytes(int, byte[], int, int)
depend on the default encoding, too.
I recommend to avoid these constructors/methods altogether.
Most of them have sister constructors/methods which take an encoding
name as an additional String argument.

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On 28 Jun 2005 03:41:35 -0700, ravi.k.sinha@gmail.com wrote or quoted
>java -Dfile.encoding="UTF-8" package.myClass
I tried this with one of my own Applications and I noticed no
difference in the GUI. Is there anything else you are changing at the
same time?
What is the default file.encoding ?
Perhaps for us to see a shrinking effect we have to set your file
default file encoding.

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