author | duke |
Wed, 05 Jul 2017 23:01:50 +0200 (2017-07-05) | |
changeset 44228 | e46434c65a2b |
parent 19934 | 1d8232b1aa18 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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/* |
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* @test |
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* @bug 7192246 |
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* @summary basic test for default methods |
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* @author Maurizio Cimadamore |
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*/ |
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import java.util.*; |
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public class Pos01 { |
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interface Mapper<T> { |
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T map(T in); |
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} |
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interface ExtendedList<T> extends List<T> { |
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default List<T> testMap(Mapper<T> r) { |
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return Pos01.<T>listMapper(this, r); |
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} |
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} |
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static class MyList<E> extends ArrayList<E> implements ExtendedList<E> {} |
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public static void main(String[] args) { |
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MyList<Integer> l = new MyList<Integer>(); |
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l.add(1); l.add(2); l.add(3); |
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l.testMap((Integer x) -> x * x ); |
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} |
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static <T> List<T> listMapper(List<T> l, Mapper<T> mapper) { |
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MyList<T> new_list = new MyList<T>(); |
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for (T el : l) { |
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new_list.add(mapper.map(el)); |
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} |
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return new_list; |
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} |
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} |