Are we talking about AWT, Swing, SWT, HTML or something different here?
Anyway, in most, if not all, of those, textfields can't show more than one line - you'll need a textarea for that.
The soul is dyed the color of its thoughts. Think only on those things that are in line with your principles and can bear the light of day. The content of your character is your choice. Day by day, what you do is who you become. Your integrity is your destiny - it is the light that guides your way. - Heraclitus
Gravity is a harsh mistress. But this tiny ad is pretty easy to deal with: