Here you can find the source of stringWidth(Graphics g, String s)
public static int stringWidth(Graphics g, String s)
//package com.java2s; /* Mesquite source code. Copyright 1997 and onward, W. Maddison and D. Maddison. //ww w. ja v a 2 s.c o m Disclaimer: The Mesquite source code is lengthy and we are few. There are no doubt inefficiencies and goofs in this code. The commenting leaves much to be desired. Please approach this source code with the spirit of helping out. Perhaps with your help we can be more than a few, and make Mesquite better. Mesquite is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY. Mesquite's web site is http://mesquiteproject.org This source code and its compiled class files are free and modifiable under the terms of GNU Lesser General Public License. (http://www.gnu.org/copyleft/lesser.html) */ import java.awt.*; public class Main { /** Returns the width of string in the current Graphics */ public static int stringWidth(Graphics g, String s) { FontMetrics fm = g.getFontMetrics(g.getFont()); if (fm == null) return -1; return fm.stringWidth(s); } }