How to calculate the font's width?

Question

I am using java to draw some text, but it is hard for me to calculate the string\'s width. for example: zheng中国... How long will this string occupy?

Answer 1

You can find it from Font.getStringBounds():

String string = "Hello World";
// Passing or initializing an instance of Font.
Font font = ...;
int width = (int) font.getStringBounds(string, new FontRenderContext(font.getTransform(), false, false)).getBounds().getWidth();