Here you can find the source of getTextWidth(Font font, String text)
public final static int getTextWidth(Font font, String text)
//package com.java2s; /**/*from w w w.j a v a2 s.c o m*/ * Copyright 1996-2014 FoxBPM ORG. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * @author MAENLIANG */ import java.awt.Font; import java.awt.FontMetrics; import javax.swing.JLabel; public class Main { public final static int getTextWidth(Font font, String text) { JLabel label = new JLabel(text); label.setFont(font); FontMetrics metrics = label.getFontMetrics(label.getFont()); return metrics.stringWidth(label.getText()); } }