test/tools/javac/defaultMethods/Pos01.java

Wed, 14 Nov 2018 10:18:25 -0800

author
diazhou
date
Wed, 14 Nov 2018 10:18:25 -0800
changeset 3762
7909abb85562
parent 2020
bb7271e64ef6
child 2525
2eb010b6cb22
permissions
-rw-r--r--

Added tag jdk8u201-b04 for changeset a7f48b9dfb82

mcimadamore@1393 1 /*
jfranck@2020 2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
mcimadamore@1393 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
mcimadamore@1393 4 *
mcimadamore@1393 5 * This code is free software; you can redistribute it and/or modify it
mcimadamore@1393 6 * under the terms of the GNU General Public License version 2 only, as
mcimadamore@1393 7 * published by the Free Software Foundation.
mcimadamore@1393 8 *
mcimadamore@1393 9 * This code is distributed in the hope that it will be useful, but WITHOUT
mcimadamore@1393 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
mcimadamore@1393 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
mcimadamore@1393 12 * version 2 for more details (a copy is included in the LICENSE file that
mcimadamore@1393 13 * accompanied this code).
mcimadamore@1393 14 *
mcimadamore@1393 15 * You should have received a copy of the GNU General Public License version
mcimadamore@1393 16 * 2 along with this work; if not, write to the Free Software Foundation,
mcimadamore@1393 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
mcimadamore@1393 18 *
mcimadamore@1393 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
mcimadamore@1393 20 * or visit www.oracle.com if you need additional information or have any
mcimadamore@1393 21 * questions.
mcimadamore@1393 22 */
mcimadamore@1393 23
mcimadamore@1393 24 /*
mcimadamore@1393 25 * @test
jfranck@2020 26 * @bug 7192246
mcimadamore@1393 27 * @summary basic test for default methods
mcimadamore@1393 28 * @author Maurizio Cimadamore
mcimadamore@1393 29 */
mcimadamore@1393 30
mcimadamore@1393 31 import java.util.*;
mcimadamore@1393 32
mcimadamore@1415 33 public class Pos01 {
mcimadamore@1393 34
mcimadamore@1393 35 interface Mapper<T> {
mcimadamore@1393 36 T map(T in);
mcimadamore@1393 37 }
mcimadamore@1393 38
mcimadamore@1393 39 interface ExtendedList<T> extends List<T> {
mcimadamore@1393 40 default List<T> testMap(Mapper<T> r) {
mcimadamore@1393 41 return Pos01.<T>listMapper(this, r);
mcimadamore@1393 42 }
mcimadamore@1393 43 }
mcimadamore@1393 44
mcimadamore@1393 45 static class MyList<E> extends ArrayList<E> implements ExtendedList<E> {}
mcimadamore@1393 46
mcimadamore@1393 47 public static void main(String[] args) {
mcimadamore@1393 48 MyList<Integer> l = new MyList<Integer>();
mcimadamore@1393 49 l.add(1); l.add(2); l.add(3);
mcimadamore@1393 50 l.testMap((Integer x) -> x * x );
mcimadamore@1393 51 }
mcimadamore@1393 52
mcimadamore@1393 53 static <T> List<T> listMapper(List<T> l, Mapper<T> mapper) {
mcimadamore@1393 54 MyList<T> new_list = new MyList<T>();
mcimadamore@1393 55 for (T el : l) {
mcimadamore@1393 56 new_list.add(mapper.map(el));
mcimadamore@1393 57 }
mcimadamore@1393 58 return new_list;
mcimadamore@1393 59 }
mcimadamore@1393 60 }

mercurial