jdk8-mips64-public/langtools: test/tools/javac/foreach/Foreach.java@959103a6100f

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http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17

     1 /*

     2  * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    24 /*

    25  * @test

    26  * @bug 4855355

    27  * @summary implement "foreach" loops as specified in JSR 201

    28  * @author gafter

    29  */

    31 import java.util.Iterator;

    33 public class Foreach implements Iterable<Integer> {

    35     public Iterator<Integer> iterator() {

    36         return new Iterator<Integer>() {

    37             int next = 1;

    38             public boolean hasNext() {

    39                 return next <= (1 << 12);

    40             }

    41             public void remove() {

    42                 throw new UnsupportedOperationException();

    43             }

    44             public Integer next() {

    45                 try {

    46                     return new Integer(next);

    47                 } finally {

    48                     next <<= 1;

    49                 }

    50             }

    51         };

    52     }

    54     public static void main(String[] args) {

    55         int sum;

    57         sum = 0;

    58         int[] a = new int[12];

    59         for (int i=0; i<12; i++) a[i] = 1<<i;

    60         for (int i : a) {

    61             if (i > 400) break;

    62             if (i == 16) continue;

    63             sum += i;

    64         }

    65         if (sum != 495)

    66             throw new AssertionError("cogito ergo " + sum);

    68         sum = 0;

    69         Iterable<Integer> x = new Foreach();

    70         for (Integer j : x)

    71             sum += j.intValue();

    72         if (sum != 8191)

    73             throw new AssertionError("cogito ergo " + sum);

    75         System.out.println("success!");

    76     }

    77 }

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