Java tutorial
//package com.java2s; /* * Hello Minecraft!. * Copyright (C) 2013 huangyuhui <huanghongxun2008@126.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 { public static void setEnabled(JComponent component, boolean t) { synchronized (component.getTreeLock()) { for (Component c : component.getComponents()) if (c instanceof JComponent) setEnabled((JComponent) c, t); } component.setEnabled(t); } }