Adds all elements in the iteration to the given collection. - Android java.util

Android examples for java.util:Iterable

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Description

Adds all elements in the iteration to the given collection.

Demo Code

/*//from  w  w w.  j  a v a 2 s  .com
 * Copyright 1999-2004 The Apache Software Foundation
 *
 * 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;
import java.util.Enumeration;

import java.util.Iterator;

public class Main {
    /**
     * Adds all elements in the iteration to the given collection.
     * 
     * @param collection  the collection to add to
     * @param iterator  the iterator of elements to add, may not be null
     * @throws NullPointerException if the collection or iterator is null
     */
    public static void addAll(Collection collection, Iterator iterator) {
        while (iterator.hasNext()) {
            collection.add(iterator.next());
        }
    }

    /**
     * Adds all elements in the enumeration to the given collection.
     * 
     * @param collection  the collection to add to
     * @param enumeration  the enumeration of elements to add, may not be null
     * @throws NullPointerException if the collection or enumeration is null
     */
    public static void addAll(Collection collection, Enumeration enumeration) {
        while (enumeration.hasMoreElements()) {
            collection.add(enumeration.nextElement());
        }
    }

    /** 
     * Adds all elements in the array to the given collection.
     * 
     * @param collection  the collection to add to
     * @param elements  the array of elements to add, may be null
     * @throws NullPointerException if the collection or array is null
     */
    public static void addAll(Collection collection, Object[] elements) {
        for (int i = 0, size = elements.length; i < size; i++) {
            collection.add(elements[i]);
        }
    }
}

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