Here you can find the source of getSelectedString(JComboBox jcb)
public static String getSelectedString(JComboBox jcb)
//package com.java2s; /**//from w w w. ja va 2 s.c om * ** * /** * Copyright (C) 2012 Jean Ollion * * * * This file is part of tango * * tango 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 (at your option) 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/>. * * @author Jean Ollion */ import javax.swing.*; public class Main { public static String getSelectedString(JComboBox jcb) { return (jcb.getSelectedIndex() == -1) ? null : (String) jcb.getSelectedItem(); } }