How to get Length in pixel of a String in j2ee??

Hi guys, im having a problem trying to find out how to get pixels from a string length, but in j2ee, i've researched, but everyone said to use Graphics2D, but since im using j2ee, i dont know how to use this.
For example i found this piece of code, but this doesnt work for me:
public void paint(Graphics g) {
Graphics2D g2d = (Graphics2D)g;
Font font = new Font("Serif", Font.PLAIN, 12);
FontMetrics fontMetrics = g2d.getFontMetrics();
int width = fontMetrics.stringWidth("aString");
int height = fontMetrics.getHeight();
How to get g2d, if i dont have a graphics to send it to the method??
I would be really happy if anyone could send me a example using a javabean.
How to do this guys???? please help me with this guys,thanks.
yellr

im working on a good explanation for this question, im trying to send pics of my programso you understand me pretty well. But a general idea, its im creating dynamically components, like labels, textFields, dropDowns, etc. My problem comes when im adding to form the labels, these labels are going to show the descripcion of the component, which it could be a textField, dropDown, textArea etc.
I put all these components on a gridPanel, for each row i can have severals componets,
I have a gridPanelGeneral which have all other gridPanels, this gridPanelGeneral have gridPanelRow+"numRow"
This gridPanelRow+"numRow" can have severals components which show like columns.
Sincerely i would like to put pictures of the program, so that way you will understand my problem, i need to set the label.setStyle(width:"+numPixelesOfDescriptionOfComponent+"px). To put these labels well, because the user cant see very well the description of the component when i have severals components, each component does have a label for its description. descriptionOfComponent is a string thats why i need to get the pixels of the string.
One question, how do i do put pics on this forum??
Edited by: yellr on Oct 30, 2007 9:56 AM

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