scrolling text in a bar

scrolling text in a bar

I'm making a program in java that recive some strings and then display
them in a new frame scolling them in one line, like the news, I will show
you an exemple (by link, i need 10 reputation to post images):
http://cloud.addictivetips.com/wp-content/uploads/2012/06/newzie.jpg
There, the text are displayed in a line, like what I need, but my problem
is that I don't know what I should use in java, I though about put a panel
on a frame and then a textfield inside the panel, then I realize that it's
impossible because for every message I may need to change the color of
background for an highlight message... So, if anyone can help me, can you
tell me what should i use for the diferent message and how i can get the
text scrolling? Thank you all in advance!