Java List Create asList(final Iterator data)

Description

Returns data converted into list.

License

Open Source License

Parameter

Parameter	Description
data	data
T	data type

Return

data list

Declaration

public static <T> ArrayList<T> asList(final Iterator<T> data) 

Method Source Code

//package com.java2s;
/*//ww w .jav a  2  s .  c  o  m
 * This file is part of WebLookAndFeel library.
 *
 * WebLookAndFeel library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * WebLookAndFeel library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with WebLookAndFeel library.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.util.*;

public class Main {
    /**
     * Returns data converted into list.
     *
     * @param data data
     * @param <T>  data type
     * @return data list
     */
    public static <T> ArrayList<T> asList(final T... data) {
        final ArrayList<T> list = new ArrayList<T>(data.length);
        Collections.addAll(list, data);
        return list;
    }

    /**
     * Returns data converted into list.
     *
     * @param data data
     * @param <T>  data type
     * @return data list
     */
    public static <T> ArrayList<T> asList(final Iterator<T> data) {
        final ArrayList<T> list = new ArrayList<T>();
        while (data.hasNext()) {
            list.add(data.next());
        }
        return list;
    }

    /**
     * Adds all objects into the specified list.
     *
     * @param collection list to fill
     * @param objects    objects
     * @param <T>        objects type
     * @return true if list changed as the result of this operation, false otherwise
     */
    public static <T> boolean addAll(final Collection<T> collection, final T... objects) {
        boolean result = false;
        for (final T object : objects) {
            if (!collection.contains(object)) {
                result |= collection.add(object);
            }
        }
        return result;
    }

    /**
     * Adds all objects into the specified list.
     *
     * @param collection list to fill
     * @param objects    objects
     * @param <T>        objects type
     * @return true if list changed as the result of this operation, false otherwise
     */
    public static <T> boolean addAll(final Collection<T> collection, final Collection<T> objects) {
        boolean result = false;
        for (final T object : objects) {
            if (!collection.contains(object)) {
                result |= collection.add(object);
            }
        }
        return result;
    }
}

Related

1. asList(Collection items)
2. asList(E... elements)
3. asList(E[] array)
4. asList(final int... values)
5. asList(int[] a)
6. asList(int[] array)
7. asList(Iterable iteratable)
8. asList(Object[] array)