Java Collection Contain containsAny(Collection collection1, Collection collection2)

Description

Queries whether two collections intersect.

License

Open Source License

Parameter

Parameter	Description
collection1	a collection
collection2	another

Return

true if they have any elements in common; false, otherwise

Declaration

public static boolean containsAny(Collection collection1, Collection collection2) 

Method Source Code

//package com.java2s;
/******************************************************************************
 * Copyright (c) 2002, 2009 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors://from  ww  w  .  ja  v  a 2s.  c om
 *    IBM Corporation - initial API and implementation 
 ****************************************************************************/

import java.util.Collection;

import java.util.Iterator;

public class Main {
    /**
     * Queries whether two collections intersect.
     * 
     * @param collection1 a collection
     * @param collection2 another
     * 
     * @return <code>true</code> if they have any elements in common;
     *    <code>false</code>, otherwise
     */
    public static boolean containsAny(Collection collection1, Collection collection2) {
        Iterator it = collection2.iterator();
        while (it.hasNext()) {
            if (collection1.contains(it.next())) {
                return true;
            }
        }
        return false;
    }
}

Related

1. containsAll(final Collection c, final Object... array)
2. containsAll(final Collection coll1, final Collection coll2)
3. containSameElements(Collection> sets)
4. containSameItems(Collection c1, Collection c2)
5. containsAny(Collection c1, Collection c2)
6. containsAny(Collection container, Collection contained)
7. containsAny(Collection col1, Collection col2)
8. containsAny(Collection source, Collection candidates)
9. containsAny(Collection source, Object... candidates)