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39 lines
1.0 KiB
39 lines
1.0 KiB
4 years ago
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/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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import java.util.ArrayList;
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import java.util.HashSet;
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import java.util.Set;
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class SetTest {
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// // Set.of creates an immutable set
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// private static final Set<String> StaticSet = Set.of("a");
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void contains_empty_constant(HashSet<String> set) {
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set.contains("");
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}
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void containsAll_linear(Set<String> set, ArrayList<String> list) {
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set.containsAll(list);
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}
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void removeAll_linear(HashSet<String> set, ArrayList<String> list) {
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set.removeAll(list);
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}
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// void loop_of_constant() {
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// Set<String> my_set = Set.of("a", "b", "c", "d", "e", "f", "g");
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// for (String el : my_set) {}
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// }
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// // here, we cannot yet recognize that StaticSet is an immutable set
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// // created by Set.of operation in the class initializer.
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// void immutable_set_of_constant_FP() {
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// for (int i = 0; i <= StaticSet.size(); i++) {}
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// }
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}
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