|
1 # compute Mothers day of the given the year |
|
2 |
|
3 /* |
|
4 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
|
5 * |
|
6 * Redistribution and use in source and binary forms, with or without |
|
7 * modification, are permitted provided that the following conditions |
|
8 * are met: |
|
9 * |
|
10 * - Redistributions of source code must retain the above copyright |
|
11 * notice, this list of conditions and the following disclaimer. |
|
12 * |
|
13 * - Redistributions in binary form must reproduce the above copyright |
|
14 * notice, this list of conditions and the following disclaimer in the |
|
15 * documentation and/or other materials provided with the distribution. |
|
16 * |
|
17 * - Neither the name of Oracle nor the names of its |
|
18 * contributors may be used to endorse or promote products derived |
|
19 * from this software without specific prior written permission. |
|
20 * |
|
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
|
22 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
|
23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
|
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
|
25 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
|
26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
|
28 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
|
29 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
|
30 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
|
31 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|
32 */ |
|
33 |
|
34 // print "Mother's day" of the given year using Java Time API |
|
35 |
|
36 if (arguments.length == 0) { |
|
37 print("Usage: jjs mothers_day.js -- year"); |
|
38 exit(1); |
|
39 } |
|
40 |
|
41 // java classes used |
|
42 var DayOfWeek = java.time.DayOfWeek; |
|
43 var LocalDate = java.time.LocalDate; |
|
44 var TemporalAdjusters = java.time.temporal.TemporalAdjusters; |
|
45 |
|
46 var year = parseInt(arguments[0]); |
|
47 |
|
48 // See: https://en.wikipedia.org/?title=Mother%27s_Day |
|
49 // We need second Sunday of May. Make April 30 of the given |
|
50 // year adjust and adjust to next Sunday from there twice. To adjust a Date |
|
51 // we use a common TemporalAdjuster provided in JDK8. |
|
52 // https://docs.oracle.com/javase/8/docs/api/java/time/temporal/TemporalAdjusters.html |
|
53 |
|
54 print(LocalDate.of(year, 4, 30). |
|
55 with(TemporalAdjusters.next(DayOfWeek.SUNDAY)). |
|
56 with(TemporalAdjusters.next(DayOfWeek.SUNDAY))); |