String length in pixels in Java

Question

Is there a way to calculate the length of a string in pixels, given a certain java.awt.Font object, that does not use any GUI components?

Answer 1

You can use the Graphics2D object to get the font bounds (including the width):

Graphics2D g2d = ...
Font font = ...
Rectangle2D f = font.getStringBounds("hello world!", g2d.getFontRenderContext());

But that depends on how you will get the Graphics2D object (for example from an Image).