Here you can find the source of getAny(Iterable
null if the iterable is empty.
public static <T> T getAny(Iterable<T> iterable)
//package com.java2s; /*-------------------------------------------------------------------------+ | | | Copyright 2005-2011 The ConQAT Project | | | | 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. | +-------------------------------------------------------------------------*/ import java.util.Iterator; public class Main { /**/* ww w . ja v a 2 s . c o m*/ * Returns one object from an {@link Iterable} or <code>null</code> if the * iterable is empty. */ public static <T> T getAny(Iterable<T> iterable) { Iterator<T> iterator = iterable.iterator(); if (!iterator.hasNext()) { return null; } return iterator.next(); } }