How many pixels does a string occupy??

Question

I'm making a credit script and have a little problem with centering the
strings. If one string is eg. 12 characters long how many pixels will it occupy on screen? This depends on which letters the string contains. So the question is, HOW can i calculate the space (in pixels) needed to print any given string. (The size of the letters is constant!)
Is it any other way to center a string on screen? I have a tendency to think a little complicated.. :)
Any help is welcome. Code or just ideas is great!

Answer 1

Hi
There's a Graphics method very interesting:
g.getFontMetrics()
it recover the width of an String...Code of sample: (Sorry, but I'm from Spain and my code too):
public void paint(Graphics g)
g.setColor(cLinea);
g.draw3DRect(5,5,iAncho-10,iAlto-10,true);
g.draw3DRect(6,6,iAncho-12,iAlto-12,true);
Color c=this.getBackground();
if(!bAgra)
{ g.setColor(Color.orange); }
else
{ g.setColor(cObligatorio); }
g.fill3DRect(7,7,iAncho-13,iAlto-13,true);
g.setColor(cLetra);
g.setFont(new Font("Dialog",Font.BOLD,iSize));
//Next line recover the X position referenced by the canvas width/2 and the text width/2...result:CENTERED
int posX=(iAncho/2)-(g.getFontMetrics().stringWidth(sTitulo)/2);
//Oopss. I've tried to do a vertical align to center, but it doesn't work properly...
int posY=(iAlto/2);
g.drawString(sTitulo,posX,posY+5);
If you need more help about this code, don't worry to ask me again
Greetings