util/LinkedHashMap/Cache.java

/*
 * Copyright (c) 2001, 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 4245809
 * @summary Basic test of removeEldestElement method.
 */

import java.util.*;

public class Cache {
    private static final int MAP_SIZE = 10;
    private static final int NUM_KEYS = 100;

    public static void main(String[] args)  throws Exception {
        Map m = new LinkedHashMap() {
            protected boolean removeEldestEntry(Map.Entry eldest) {
                return size() > MAP_SIZE;
            }
        };

        for (int i = 0; i < NUM_KEYS; i++) {
            m.put(new Integer(i), "");
            int eldest = ((Integer) m.keySet().iterator().next()).intValue();
            if (eldest != Math.max(i-9, 0))
                throw new RuntimeException("i = " + i + ", eldest = " +eldest);
        }
    }
}
Revision:	1.2
Committed:	Sun Sep 5 21:32:19 2010 UTC (13 years, 8 months ago) by jsr166
Branch:	MAIN
CVS Tags:	release-1_7_0
Changes since 1.1:	+4 -4 lines
Log Message:	Update legal notices to Oracle wording
#	Content
1	/*
2	* Copyright (c) 2001, 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	*/
23
24	/**
25	* @test
26	* @bug 4245809
27	* @summary Basic test of removeEldestElement method.
28	*/
29
30	import java.util.*;
31
32	public class Cache {
33	private static final int MAP_SIZE = 10;
34	private static final int NUM_KEYS = 100;
35
36	public static void main(String[] args) throws Exception {
37	Map m = new LinkedHashMap() {
38	protected boolean removeEldestEntry(Map.Entry eldest) {
39	return size() > MAP_SIZE;
40	}
41	};
42
43	for (int i = 0; i < NUM_KEYS; i++) {
44	m.put(new Integer(i), "");
45	int eldest = ((Integer) m.keySet().iterator().next()).intValue();
46	if (eldest != Math.max(i-9, 0))
47	throw new RuntimeException("i = " + i + ", eldest = " +eldest);
48	}
49	}
50	}