Gets a list based on an iterator. - Java Collection Framework

Java examples for Collection Framework:Iterator

Description

Gets a list based on an iterator.

Demo Code

/*//www.j a  va  2 s  .  c  o  m
 * Copyright (c) 2013 Red Rainbow IT Solutions GmbH, Germany
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
//package com.java2s;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class Main {
    /** 
     * Gets a list based on an iterator. 
     * As the wrapped Iterator is traversed, an {@link ArrayList} of its values
     * is created. At the end, the list is returned.

     * @param it  the iterator to be traversed
     * @return   the list of values found in the traversal of the iterator
     */
    public static <T> List<T> toList(Iterator<T> it) {
        List<T> list = new ArrayList<>();
        while (it.hasNext())
            list.add(it.next());
        return list;
    }
}

Related Tutorials