Java List Split split(List list, int splitSize)

Description

split

License

Apache License

Parameter

Parameter	Description
list	a parameter
splitSize	a parameter

Return

splited collection

Declaration

public static <T> List<List<T>> split(List<T> list, int splitSize) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright 2015 MobileMan GmbH//from w  ww  .ja v  a 2 s  . c o m
 * www.mobileman.com
 * 
 * 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.Collections;
import java.util.List;

public class Main {
    /**
     * @param list
     * @param splitSize
     * @return splited collection
     */
    public static <T> List<List<T>> split(List<T> list, int splitSize) {
        if (list == null || list.isEmpty() || splitSize <= 0) {
            return Collections.emptyList();
        }

        List<List<T>> result = new ArrayList<List<T>>();
        if (list.size() > splitSize) {
            int fromIndex = 0;
            while (true) {
                int toIndex = fromIndex + splitSize;
                if (toIndex > list.size()) {
                    toIndex = list.size();
                }
                result.add(list.subList(fromIndex, toIndex));
                fromIndex += splitSize;
                if (fromIndex >= list.size()) {
                    break;
                }
            }
        } else {
            result.add(list);
        }

        return result;
    }
}

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2. split(List list, int size)
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