Java List Sub List subList(List list, int fromIndex, int toIndex)

Description

This operation exists because GWT doesn't support List.subList as of release 1.5 RC1.

License

Apache License

Parameter

Parameter	Description
list	a parameter
fromIndex	low endpoint (inclusive) of the subList
toIndex	high endpoint (exclusive) of the subList

Exception

Parameter	Description
IndexOutOfBoundsException	for an illegal endpoint index value(<tt>fromIndex &lt; 0 || toIndex &gt; size ||fromIndex &gt; toIndex</tt>)

Return

a view of the specified range within this list

Declaration

public static <T> List<T> subList(List<T> list, int fromIndex, int toIndex) 

Method Source Code

//package com.java2s;
/*/*from  w w  w  . j  av  a2 s .c  o m*/
 * Copyright (c) 2008 TouK.pl
 *
 * 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.List;
import java.util.ArrayList;

public class Main {
    /**
     * This operation exists because GWT doesn't support List.subList as of
     * release 1.5 RC1.
     *
     * Returns a new list that contains the elements in the specified range
     * of the given list.
     *
     * @param list
     * @param fromIndex low endpoint (inclusive) of the subList
     * @param toIndex high endpoint (exclusive) of the subList
     * @return a view of the specified range within this list
     * @throws IndexOutOfBoundsException for an illegal endpoint index value
     *         (<tt>fromIndex &lt; 0 || toIndex &gt; size ||
     *         fromIndex &gt; toIndex</tt>)
     *
     * @since 0.3.1
     */
    public static <T> List<T> subList(List<T> list, int fromIndex, int toIndex) {
        // this implementation only runs fast in javascript code,
        // since all list implementations in GWT use javascript arrays, which
        // are random access
        ArrayList<T> ret = new ArrayList<T>();
        for (int i = fromIndex; i < toIndex; i++) {
            ret.add(list.get(i));
        }
        return ret;
    }
}

Related

1. subList(List initial, int threshold)
2. subList(List input, int startIndex, int count)
3. subList(List input, int startIndex, int count)
4. subList(List it, int offset, int limit)
5. sublist(List l, int fromIndex, int toIndex)
6. subList(List list, int fromIndex, int toIndex)
7. subList(List list, int size)
8. subList(List list, int start, int end)
9. sublist(List list, int start, int limit)