title: Java - System.out effect on performance
body: <p>I've seen <a href="https://stackoverflow.com/questions/10966984/what-is-effect-of-syso-system-out-println">this question</a> and it's somewhat similar. I would like to know if it really is a big factor that would affect the performance of my application. Here's my scenario.<br>
  <br>
  I have this Java webapp that can upload thousands of data from a Spreadsheet which is being read per row from top to bottom. I'm using <code>System.out.println()</code> to show on the server's side on what line the application is currently reading.
  <br><br>
  - I'm aware of creating a log file. In fact, I'm creating a log file and at the same time, displaying the logs on the server's prompt.<br>
  Is there any other way of printing the current data on the prompt?</p>