1 /* 2 * Copyright (C) 2012 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 17 package com.android.inputmethod.latin.utils; 18 19 import java.util.ArrayList; 20 import java.util.Collections; 21 import java.util.Map; 22 import java.util.TreeMap; 23 24 public final class CollectionUtils { 25 private CollectionUtils() { 26 // This utility class is not publicly instantiable. 27 } 28 29 public static <E> ArrayList<E> arrayAsList(final E[] array, final int start, final int end) { 30 if (array == null) { 31 throw new NullPointerException(); 32 } 33 if (start < 0 || start > end || end > array.length) { 34 throw new IllegalArgumentException(); 35 } 36 37 final ArrayList<E> list = new ArrayList<>(end - start); 38 for (int i = start; i < end; i++) { 39 list.add(array[i]); 40 } 41 return list; 42 } 43 } 44
