A String is a Array of letters. So you could use a for loop to iterate
though that "array" and print each letter on a new line.

Is it posible to display a vertical string  on a label or a tab ?

i once had to put some vertical tabs in my applications and wanted to put the
tab title in verticle manner.... i couldn't do it... does anybody know about
this?

this can also be applicable to radiobuttons, check boxes etc...

any solutions?

I wouldn't realy know what is possible or not in Java GUI, I try not to
use it.