Java tutorial
//package com.java2s; /* Holyoke Framework: library for GUI-based database applications This file Copyright (c) 2006-2008 by Robert Fischer 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.*; import javax.swing.*; public class Main { /** Recursively sets or clears the enabled property on a JComponent and all its children. */ public static void setEnabledRecursive(JComponent c, boolean enabled) { c.setEnabled(enabled); Component[] child = c.getComponents(); for (int i = 0; i < child.length; ++i) { if (child[i] instanceof JComponent) setEnabledRecursive((JComponent) child[i], enabled); } } }