Java List Partition partition(List list, int size)

Description

partition

License

Open Source License

Declaration

public static <T> List<List<T>> partition(List<T> list, int size) 

Method Source Code

//package com.java2s;
/*// www  . ja v a  2 s . c  o m
 * The MIT License
 *
 * Copyright 2016 Ahseya.
 *
 * 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.
 */

import java.util.ArrayList;
import java.util.List;

public class Main {
    public static <T> List<List<T>> partition(List<T> list, int size) {
        if (size <= 0) {
            throw new IllegalArgumentException("bad size: " + size);
        }
        List<List<T>> lists = new ArrayList<>();
        for (int i = 0; i < list.size(); i += size) {
            int fromIndex = i;
            int toIndex = fromIndex + size;
            toIndex = toIndex > list.size() ? list.size() : toIndex;
            List<T> subList = list.subList(fromIndex, toIndex);
            lists.add(subList);
        }
        return lists;
    }
}

Related

1. partition(List a, int lower, int upper)
2. partition(List items, int slices)
3. partition(List list, int num)
4. partition(List list, int partitionSize)
5. partition(List list, int size)
6. partition(List list, int size)
7. partition(List longList, int length)
8. partition(List orig, int size)
9. partition(List sourceList, int numberOfSegments)