Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2002-2014 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.*;

public class Main {
    /**
     * Return {@code true} if any element in '{@code candidates}' is
     * contained in '{@code source}'; otherwise returns {@code false}.
     * @param source the source Collection
     * @param candidates the candidates to search for
     * @return whether any of the candidates has been found
     */
    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());
    }

    /**
     * Check whether the given Iterator contains the given element.
     * @param iterator the Iterator to check
     * @param element the element to look for
     * @return {@code true} if found, {@code false} else
     */
    public static boolean contains(Iterator<?> iterator, Object element) {
        if (iterator != null) {
            while (iterator.hasNext()) {
                Object candidate = iterator.next();
                if (Objects.equals(candidate, element))
                    return true;
            }
        }
        return false;
    }

    /**
     * Check whether the given Enumeration contains the given element.
     * @param enumeration the Enumeration to check
     * @param element the element to look for
     * @return {@code true} if found, {@code false} else
     */
    public static boolean contains(Enumeration<?> enumeration, Object element) {
        if (enumeration != null) {
            while (enumeration.hasMoreElements()) {
                Object candidate = enumeration.nextElement();
                if (Objects.equals(candidate, element))
                    return true;
            }
        }
        return false;
    }
}