Util.java revision 82bcf002f2f736afcd6cb548c19aa4e8ac12b421
1/* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.quicksearchbox.util; 18 19import java.util.ArrayList; 20import java.util.HashSet; 21import java.util.Set; 22 23/** 24 * General utilities. 25 */ 26public class Util { 27 28 public static <A> Set<A> setOfFirstN(ArrayList<A> list, int n) { 29 int end = Math.min(list.size(), n); 30 HashSet<A> set = new HashSet<A>(end); 31 for (int i = 0; i < end; i++) { 32 set.add(list.get(i)); 33 } 34 return set; 35 } 36 37} 38