Java JComboBox Selection anySelected(JComboBox box)

Description

Check if there are any selected items in the combobox.

License

Open Source License

Parameter

Parameter	Description
box	The box to check

Return

Any selected items.

Declaration

public static boolean anySelected(JComboBox box) 

Method Source Code

//package com.java2s;
/*/*from ww  w  .j  ava 2  s.co m*/
 * Copyright 1997-2016 Unidata Program Center/University Corporation for
 * Atmospheric Research, P.O. Box 3000, Boulder, CO 80307,
 * support@unidata.ucar.edu.
 * 
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or (at
 * your option) any later version.
 * 
 * This library 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 Lesser
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

import javax.swing.JComboBox;

public class Main {
    /**
     * Check if there are any selected items in the combobox. We have
     * this as a method because if the box as no items a getSelectedItem
     * causes an error.
     *
     * @param box The box to check
     *
     * @return Any selected items.
     */
    public static boolean anySelected(JComboBox box) {
        if (box == null) {
            return false;
        }
        if (box.getModel().getSize() > 0) {
            return box.getSelectedItem() != null;
        }
        return false;
    }
}

Related

1. getSelectedItem(Object combo)
2. getSelectedName(JComboBox comboBox)
3. getSelectedString(JComboBox jcb)
4. getTypedSelectedItemFromCombo(JComboBox combo)