24 */
25
26 package sun.util.calendar;
27
28 import java.util.Locale;
29 import java.util.TimeZone;
30
31 /**
32 * The class <code>Era</code> represents a calendar era that defines a
33 * period of time in which the same year numbering is used. For
34 * example, Gregorian year 2004 is <I>Heisei</I> 16 in the Japanese
35 * calendar system. An era starts at any point of time (Gregorian) that is
36 * represented by <code>CalendarDate</code>.
37 *
38 * <p><code>Era</code>s that are applicable to a particular calendar
39 * system can be obtained by calling {@link CalendarSystem#getEras}
40 * one of which can be used to specify a date in
41 * <code>CalendarDate</code>.
42 *
43 * <p>The following era names are defined in this release.
44 * <!-- TODO: use HTML table -->
45 * <pre><tt>
46 * Calendar system Era name Since (in Gregorian)
47 * -----------------------------------------------------------------------
48 * Japanese calendar Meiji 1868-01-01 midnight local time
49 * Taisho 1912-07-30 midnight local time
50 * Showa 1926-12-26 midnight local time
51 * Heisei 1989-01-08 midnight local time
52 * NewEra 2019-05-01 midnight local time
53 * Julian calendar BeforeCommonEra -292275055-05-16T16:47:04.192Z
54 * CommonEra 0000-12-30 midnight local time
55 * Taiwanese calendar MinGuo 1911-01-01 midnight local time
56 * Thai Buddhist calendar BuddhistEra -543-01-01 midnight local time
57 * -----------------------------------------------------------------------
58 * </tt></pre>
59 *
60 * @author Masayoshi Okutsu
61 * @since 1.5
62 */
63
64 public final class Era {
65 private final String name;
66 private final String abbr;
67 private final long since;
68 private final CalendarDate sinceDate;
69 private final boolean localTime;
70
71 /**
72 * Constructs an <code>Era</code> instance.
73 *
74 * @param name the era name (e.g., "BeforeCommonEra" for the Julian calendar system)
75 * @param abbr the abbreviation of the era name (e.g., "B.C.E." for "BeforeCommonEra")
76 * @param since the time (millisecond offset from January 1, 1970
77 * (Gregorian) UTC or local time) when the era starts, inclusive.
78 * @param localTime <code>true</code> if <code>since</code>
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24 */
25
26 package sun.util.calendar;
27
28 import java.util.Locale;
29 import java.util.TimeZone;
30
31 /**
32 * The class <code>Era</code> represents a calendar era that defines a
33 * period of time in which the same year numbering is used. For
34 * example, Gregorian year 2004 is <I>Heisei</I> 16 in the Japanese
35 * calendar system. An era starts at any point of time (Gregorian) that is
36 * represented by <code>CalendarDate</code>.
37 *
38 * <p><code>Era</code>s that are applicable to a particular calendar
39 * system can be obtained by calling {@link CalendarSystem#getEras}
40 * one of which can be used to specify a date in
41 * <code>CalendarDate</code>.
42 *
43 * <p>The following era names are defined in this release.
44 * <pre>{@code
45 * Calendar system Era name Since (in Gregorian)
46 * -----------------------------------------------------------------------
47 * Japanese calendar Meiji 1868-01-01T00:00:00 local time
48 * Taisho 1912-07-30T00:00:00 local time
49 * Showa 1926-12-25T00:00:00 local time
50 * Heisei 1989-01-08T00:00:00 local time
51 * Reiwa 2019-05-01T00:00:00 local time
52 * -----------------------------------------------------------------------
53 * }</pre>
54 *
55 * @author Masayoshi Okutsu
56 * @since 1.5
57 */
58
59 public final class Era {
60 private final String name;
61 private final String abbr;
62 private final long since;
63 private final CalendarDate sinceDate;
64 private final boolean localTime;
65
66 /**
67 * Constructs an <code>Era</code> instance.
68 *
69 * @param name the era name (e.g., "BeforeCommonEra" for the Julian calendar system)
70 * @param abbr the abbreviation of the era name (e.g., "B.C.E." for "BeforeCommonEra")
71 * @param since the time (millisecond offset from January 1, 1970
72 * (Gregorian) UTC or local time) when the era starts, inclusive.
73 * @param localTime <code>true</code> if <code>since</code>
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