title: Write logger message to file and textarea while maintaining default behaviour in Java
body: <p>I'm currently working on logging messages from my application in .log files.
  This is working fine so far but now I'm trying to output the same message to a textarea.
  I have been using the default logger for all this.</p>
  
  <p>This so that I have one class that does all the work of logging to a .log file and writing the same output to a textarea for the admin to see.</p>
  
  <p>This is a Java swing JFrame application containing just a textarea (all I need).
  There is a bunch going on in the background and all of that activity has to be logged for review/debugging.</p>
  
  <p>I've been having trouble finding a good example so I was wondering if you guys could help me.</p>