gistfile1.txt

package org.javachannel;

import java.util.ArrayList;
import java.util.List;
import java.util.stream.IntStream;

public class LemonSparrowExample {
  public static void main(String[] args) {
    List<Integer> ids = new ArrayList<>();
    IntStream.range(0, 2300).forEach(ids::add);
    List<List<Integer>> splitList = split(ids, 1000);

    System.out.println("Number of lists: " + splitList.size());

    splitList.stream().forEach(l -> {
      System.out.println("Size of sublist: " + l.size());
    });
    System.out.println("Size of original list: " + ids.size());

    for (List<Integer> aSplitList : splitList) {
      for (int i = 0; i < 5; i++) {
        System.out.println(aSplitList.get(i));
      }
    }
  }

  private static List<List<Integer>> split(List<Integer> ids, int sizeOfList) {
    List<Integer> tempList = new ArrayList<>(ids);
    List<List<Integer>> returnedList = new ArrayList<>();
    while (tempList.size() > 0) {
      int end = Math.min(sizeOfList, tempList.size());
      List<Integer> subList = tempList.subList(0, end);
      returnedList.add(new ArrayList<>(subList));
      subList.clear();
    }
    return returnedList;
  }
}