Here you can find the source of toBooleanArray(ArrayList items)
public static boolean[] toBooleanArray(ArrayList items)
//package com.java2s; /*/*from w w w .j a v a2 s. c o m*/ * Copyright (C) 2004 NNL Technology AB * Visit www.infonode.net for information about InfoNode(R) * products and how to contact NNL Technology AB. * * 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 2 * 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, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, * MA 02111-1307, USA. */ import java.util.ArrayList; public class Main { public static boolean[] toBooleanArray(ArrayList items) { boolean[] result = new boolean[items.size()]; for (int i = 0; i < items.size(); i++) result[i] = ((Boolean) items.get(i)).booleanValue(); return result; } }