Java ArrayList Create newArrayList(Iterable elements)

Description

new Array List

License

Apache License

Declaration

public static <E> ArrayList<E> newArrayList(Iterable<? extends E> elements) 

Method Source Code

//package com.java2s;
/*// w  w  w  .j  a  v  a  2  s.  c  om
 * Copyright 2013-2016 iNeunet OpenSource and 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.ArrayList;
import java.util.Collection;
import java.util.Iterator;

public class Main {
    public static <E> ArrayList<E> newArrayList(Iterable<? extends E> elements) {
        if (elements instanceof Collection) {
            Collection<? extends E> collection = (Collection<? extends E>) elements;
            return new ArrayList<E>(collection);
        } else {
            return newArrayList(elements.iterator());
        }
    }

    public static <E> ArrayList<E> newArrayList(Iterator<? extends E> elements) {
        ArrayList<E> list = new ArrayList<E>();
        while (elements.hasNext()) {
            list.add(elements.next());
        }
        return list;
    }
}

Related

1. newArrayList(int initialCapacity)
2. newArrayList(int initialCapacity)
3. newArrayList(int initialCapacity)
4. newArrayList(int initialCapacity)
5. newArrayList(int size)
6. newArrayList(Iterable iterable)
7. newArrayList(T anObj)
8. newArrayList(T... elements)
9. newArrayList(T... items)