Here you can find the source of createRadioButton(String text, ButtonGroup buttonGroup, ActionListener... listeners)
public static JRadioButton createRadioButton(String text, ButtonGroup buttonGroup, ActionListener... listeners)
//package com.java2s; /*//from w ww . j a v a2 s . c om * Copyright 2015, 2016 Manfred Hantschel * * This file is part of Climate-Tray. * * Climate-Tray 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. * * Climate-Tray 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 Climate-Tray. If not, see * <http://www.gnu.org/licenses/>. */ import java.awt.event.ActionListener; import javax.swing.ButtonGroup; import javax.swing.JRadioButton; public class Main { public static JRadioButton createRadioButton(String text, ButtonGroup buttonGroup, ActionListener... listeners) { JRadioButton result = new JRadioButton(text); if (buttonGroup != null) { buttonGroup.add(result); } for (ActionListener listener : listeners) { result.addActionListener(listener); } return result; } }