title: How do you add text to a JTextArea
body: <p>I am making a simple NotePad app in my spare time and i have added some buttons to add some text, like the time or an essay plan etc. I am currently using the code </p>
  
  <p><code>textArea.setText("Text");</code></p>
  
  <p>But it keeps on replacing all of the text, is there anyway to just add the text to the JTextArea? I've tried </p>
  
  <pre><code>textArea.addText("Text"); 
  </code></pre>
  
  <p>and it doesn't seem to work.</p>