how to make scrollbar start at the bottom?

Question

I'm creating a java chat application using jFrame. I'm using a JScrollPane to scroll the text area. All the new messages are added at the bottom, but the scroll bar starts at the top. How do I make it start at the bottom?

Answer 1

You can force it to scroll to the bottom after adding a message by scrolling its vertical scrollbar directly, e.g.:

JScrollBar vScrollBar = myScrollPane.getVerticalScrollBar();
vScrollBar.setValue(vScrollBar.getMaximum());