Here you can find the source of getColorChooser()
public static JColorChooser getColorChooser()
//package com.java2s; /**/*from www .ja v a 2 s. co m*/ * Copyright (C) DataMelt project. The jHPLot package. * Includes coding developed for Centre d'Informatique Geologique * by J.V.Lee priory 2000 GNU license. * * This program is free software; you can redistribute it and/or modify it under the terms * of the GNU General Public License as published by the Free Software Foundation; either * version 3 of the License, or any later version. * * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along with this program; * if not, see <http://www.gnu.org/licenses>. * * Additional permission under GNU GPL version 3 section 7: * If you have received this program as a library with written permission from the DataMelt team, * you can link or combine this library with your non-GPL project to convey the resulting work. * In this case, this library should be considered as released under the terms of * GNU Lesser public license (see <https://www.gnu.org/licenses/lgpl.html>), * provided you include this license notice and a URL through which recipients can access the * Corresponding Source. **/ import javax.swing.*; public class Main { private static JColorChooser colorChooser; /** * Returns a color chooser on request. Very usefull if the color chooser is * often needed, since we only allocate the chooser once */ public static JColorChooser getColorChooser() { if (colorChooser == null) colorChooser = new JColorChooser(); return colorChooser; } }