Mercurial > jdk8-mips64-public > langtools / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/tools/javac/foreach/Foreach.java	Wed Apr 27 01:34:52 2016 +0800
     1.3 @@ -0,0 +1,77 @@
     1.4 +/*
     1.5 + * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.
    1.11 + *
    1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.15 + * version 2 for more details (a copy is included in the LICENSE file that
    1.16 + * accompanied this code).
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License version
    1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.21 + *
    1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    1.23 + * or visit www.oracle.com if you need additional information or have any
    1.24 + * questions.
    1.25 + */
    1.26 +
    1.27 +/*
    1.28 + * @test
    1.29 + * @bug 4855355
    1.30 + * @summary implement "foreach" loops as specified in JSR 201
    1.31 + * @author gafter
    1.32 + */
    1.33 +
    1.34 +import java.util.Iterator;
    1.35 +
    1.36 +public class Foreach implements Iterable<Integer> {
    1.37 +
    1.38 +    public Iterator<Integer> iterator() {
    1.39 +        return new Iterator<Integer>() {
    1.40 +            int next = 1;
    1.41 +            public boolean hasNext() {
    1.42 +                return next <= (1 << 12);
    1.43 +            }
    1.44 +            public void remove() {
    1.45 +                throw new UnsupportedOperationException();
    1.46 +            }
    1.47 +            public Integer next() {
    1.48 +                try {
    1.49 +                    return new Integer(next);
    1.50 +                } finally {
    1.51 +                    next <<= 1;
    1.52 +                }
    1.53 +            }
    1.54 +        };
    1.55 +    }
    1.56 +
    1.57 +    public static void main(String[] args) {
    1.58 +        int sum;
    1.59 +
    1.60 +        sum = 0;
    1.61 +        int[] a = new int[12];
    1.62 +        for (int i=0; i<12; i++) a[i] = 1<<i;
    1.63 +        for (int i : a) {
    1.64 +            if (i > 400) break;
    1.65 +            if (i == 16) continue;
    1.66 +            sum += i;
    1.67 +        }
    1.68 +        if (sum != 495)
    1.69 +            throw new AssertionError("cogito ergo " + sum);
    1.70 +
    1.71 +        sum = 0;
    1.72 +        Iterable<Integer> x = new Foreach();
    1.73 +        for (Integer j : x)
    1.74 +            sum += j.intValue();
    1.75 +        if (sum != 8191)
    1.76 +            throw new AssertionError("cogito ergo " + sum);
    1.77 +
    1.78 +        System.out.println("success!");
    1.79 +    }
    1.80 +}