Automatically scroll to the bottom of a text area

Question

I have a text area with scroll bar. At regular intervals, I am adding new lines of text to it. I would like the text area to automatically scroll to the bottom-most entry (t

Answer 1

textArea.setCaretPosition(textArea.getDocument().getLength());

Answer 2

Have a look at the updatePolicy property of DefaultCaret: it might do what you want

DefaultCaret caret = (DefaultCaret) textArea.getCaret();
caret.setUpdatePolicy(ALWAYS_UPDATE);

A nice summary of options by Rob (@camickr)