Here you can find the source of toggleFrame(JFrame frame)
public static void toggleFrame(JFrame frame)
//package com.java2s; /*/*from ww w.ja va 2 s .c om*/ Open Auto Trading : A fully automatic equities trading platform with machine learning capabilities Copyright (C) 2015 AnyObject Ltd. 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 (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/>. */ import javax.swing.*; public class Main { public static void toggleFrame(JFrame frame) { if (frame == null) { return; } frame.setVisible(!frame.isVisible()); // if (frame.isVisible()) { // if (frame.isFocusOwner()) { // frame.setVisible(false); // } else { // frame.toFront(); // } // } else { // frame.setVisible(true); // } } }