Here you can find the source of addItem(DefaultComboBoxModel model, String elem)
public static void addItem(DefaultComboBoxModel model, String elem)
//package com.java2s; /**/*from w ww . j a va 2 s . com*/ * Licensed under the GNU LESSER GENERAL PUBLIC LICENSE, Version 3, 29 June 2007; * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.gnu.org/licenses/lgpl-3.0.txt * * 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. */ import javax.swing.*; public class Main { public static void addItem(DefaultComboBoxModel model, String elem) { model.addElement(elem); } public static void addItem(Object model, String elem) { ((DefaultComboBoxModel) model).addElement(elem); } }