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From: markspace on 6 Jul 2010 11:34
jc_usernet wrote:

> I am thinking along the lines of a static method like
> DiagnosticOutput.put( String stringToAppend )


What I would do here is use the logging framework. Make a Handler that
writes to a JTextArea. Then you can control writes and even
instantiation more easily just by using the normal logging configuration
properties.

Here's an example. This class is, I believe, thread-safe, although
quite simple.


class TextAreaHandler extends Handler {

private final JTextArea view;

public TextAreaHandler( JTextArea view )
{
this.view = view;
}

@Override
public void publish( LogRecord record )
{
view.append( record.getMessage() );
view.append( '\n' );
}

@Override
public void flush()
{
// no-op
}

@Override
public void close()
{
// possibly dispose the top-level window here
}

}
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