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The Foreach.java Java example source code
/*
* Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 4855355
* @summary implement "foreach" loops as specified in JSR 201
* @author gafter
*/
import java.util.Iterator;
public class Foreach implements Iterable<Integer> {
public Iterator<Integer> iterator() {
return new Iterator<Integer>() {
int next = 1;
public boolean hasNext() {
return next <= (1 << 12);
}
public void remove() {
throw new UnsupportedOperationException();
}
public Integer next() {
try {
return new Integer(next);
} finally {
next <<= 1;
}
}
};
}
public static void main(String[] args) {
int sum;
sum = 0;
int[] a = new int[12];
for (int i=0; i<12; i++) a[i] = 1<
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