Slice a list : List « Collections Data Structure « Java

Slice a list


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//package org.vosao.utils;

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

public class ListUtil {

  public static interface Filter<T> {
    public boolean filter(T entity);
  public static <T> List<T> filter(List<T> list, Filter<T> filter) {
    List<T> result = new ArrayList<T>();
    for (T entity : list) {
      if (filter.filter(entity)) {
    return result;
  public static <T> List<T> slice(List<T> list, int index, int count) {
    List<T> result = new ArrayList<T>();
    if (index >= 0 && index < list.size()) {
      int end = index + count < list.size() ? index + count : list.size();
      for (int i = index; i < end; i++) {
    return result;


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