return true if none of the collections are empty or null - Java java.util

Java examples for java.util:Collection Search

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Description

return true if none of the collections are empty or null

Demo Code

/*/*from w  ww  .j  a  v  a 2s  .  co  m*/
 * ObjectLab, http://www.objectlab.co.uk/open is sponsoring the ObjectLab Kit.
 *
 * Based in London, we are world leaders in the design and development
 * of bespoke applications for the securities financing markets.
 *
 * <a href="http://www.objectlab.co.uk/open">Click here to learn more</a>
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 *                     www.ObjectLab.co.uk
 *
 * $Id: AbstractDateCalculator.java 309 2010-03-23 21:01:49Z marchy $
 *
 * Copyright 2006 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
//package com.java2s;
import java.util.Collection;

public class Main {
    public static void main(String[] argv) {
        Collection collections = java.util.Arrays.asList("asdf",
                "java2s.com");
        System.out.println(noneEmpty(collections));
    }

    /**
     * @return true if none of the collections are empty or null
     */
    public static boolean noneEmpty(final Collection<?>... collections) {
        if (collections == null) {
            return false;
        }
        for (final Collection<?> col : collections) {
            if (isEmpty(col)) {
                return false;
            }
        }
        return true;
    }

    /**
     * @return true if collection null or empty.
     */
    public static boolean isEmpty(final Collection<?> col) {
        return col == null || col.isEmpty();
    }
}

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