Android examples for java.util:Collection Contains
Check if Collection contains Any passed in value
/*//from ww w . j a v a 2 s. c o m * Copyright 2002-2008 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. */ import java.util.Arrays; import java.util.Collection; import java.util.Enumeration; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Properties; public class Main{ public static void main(String[] argv){ Collection source = java.util.Arrays.asList("asdf","book2s.com"); Collection candidates = java.util.Arrays.asList("asdf","book2s.com"); System.out.println(containsAny(source,candidates)); } public static boolean containsAny(Collection<?> source, Collection<?> candidates) { if (isEmpty(source) || isEmpty(candidates)) { return false; } for (Object candidate : candidates) { if (source.contains(candidate)) { return true; } } return false; } public static boolean isEmpty(Collection<?> collection) { return (collection == null || collection.isEmpty()); } public static boolean isEmpty(Map<?, ?> map) { return (map == null || map.isEmpty()); } public static boolean contains(Iterator<?> iterator, Object element) { if (iterator != null) { while (iterator.hasNext()) { Object candidate = iterator.next(); if (ObjectUtil.nullSafeEquals(candidate, element)) { return true; } } } return false; } public static boolean contains(Enumeration<?> enumeration, Object element) { if (enumeration != null) { while (enumeration.hasMoreElements()) { Object candidate = enumeration.nextElement(); if (ObjectUtil.nullSafeEquals(candidate, element)) { return true; } } } return false; } }