Java tutorial
//package com.java2s; /* * SK's Minecraft Launcher * Copyright (C) 2010, 2011 Albert Pham <http://www.sk89q.com> * * 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 java.awt.Component; import javax.swing.JComponent; public class Main { /** * Remove all the opaqueness of the given components and child components. * * @param components list of components */ public static void removeOpaqueness(Component... components) { for (Component component : components) { if (component instanceof JComponent) { JComponent jComponent = (JComponent) component; jComponent.setOpaque(false); removeOpaqueness(jComponent.getComponents()); } } } }