39 lines
1.2 KiB
Java
Executable File
39 lines
1.2 KiB
Java
Executable File
// Copyright 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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package org.chromium.base;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.HashSet;
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/**
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* Functions used for easier initialization of Java collections. Inspired by
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* functionality in com.google.common.collect in Guava but cherry-picked to
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* bare-minimum functionality to avoid bloat. (http://crbug.com/272790 provides
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* further details)
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*/
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public final class CollectionUtil {
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private CollectionUtil() {}
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public static <E> HashSet<E> newHashSet(E... elements) {
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HashSet<E> set = new HashSet<E>(elements.length);
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Collections.addAll(set, elements);
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return set;
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}
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public static <E> ArrayList<E> newArrayList(E... elements) {
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ArrayList<E> list = new ArrayList<E>(elements.length);
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Collections.addAll(list, elements);
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return list;
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}
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public static <E> ArrayList<E> newArrayList(Iterable<E> iterable) {
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ArrayList<E> list = new ArrayList<E>();
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for (E element : iterable) {
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list.add(element);
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}
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return list;
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}
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} |