如何获得本地化的短日常名称(Mo/Tu/We/Th ......)

Question

我可以在Java中获得本地化的短日历名称(Mo/Tu/We/Th/Fr/Sa/Su)

Answer 1

最好的方法是使用java.text.DateFormatSymbols

DateFormatSymbols symbols = new DateFormatSymbols(new Locale("it"));
// for the current Locale :
//   DateFormatSymbols symbols = new DateFormatSymbols(); 
String[] dayNames = symbols.getShortWeekdays();
for (String s : dayNames) { 
   System.out.print(s + " ");
}
// output :  dom lun mar mer gio ven sab 

Answer 2

如果您可以使用标准缩写,只需使用Calendar类,如下所示:

myCal.getDisplayName(Calendar.DAY_OF_WEEK, Calendar.SHORT, Locale.US);

Answer 3

使用SimpleDateFormat的示例:

Date now = new Date();
// EEE gives short day names, EEEE would be full length.
SimpleDateFormat dateFormat = new SimpleDateFormat("EEE", Locale.US); 
String asWeek = dateFormat.format(now);

SimpleDateFormat比C风格的String.format和System.out.printf更长,我想你会发现大多数Java开发人员会更熟悉它并且在现有代码库中使用更多,所以我建议你做法.

Answer 4

DateTimeFormatter#localizedBy

\n

从Java SE 10开始，您可以使用DateTimeFormatter#localizedBy.

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演示：

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import java.time.LocalDate;\nimport java.time.ZoneId;\nimport java.time.format.DateTimeFormatter;\nimport java.util.Locale;\n\npublic class Main {\n\n    public static void main(String args[]) {\n        DateTimeFormatter dtfHindi = DateTimeFormatter.ofPattern("E").localizedBy(Locale.forLanguageTag("hi"));\n        DateTimeFormatter dtfBangla = DateTimeFormatter.ofPattern("E").localizedBy(Locale.forLanguageTag("bn"));\n        DateTimeFormatter dtfGerman = DateTimeFormatter.ofPattern("E").localizedBy(Locale.forLanguageTag("de"));\n        DateTimeFormatter dtfEnglish = DateTimeFormatter.ofPattern("E").localizedBy(Locale.forLanguageTag("en"));\n\n        // Replace ZoneId.systemDefault() with the applicable timezone e.g.\n        // ZoneId.of("Asia/Calcutta")\n        LocalDate today = LocalDate.now(ZoneId.systemDefault());\n\n        System.out.println(dtfHindi.format(today));\n        System.out.println(dtfBangla.format(today));\n        System.out.println(dtfGerman.format(today));\n        System.out.println(dtfEnglish.format(today));\n    }\n}\n

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输出：

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\xe0\xa4\xb6\xe0\xa5\x81\xe0\xa4\x95\xe0\xa5\x8d\xe0\xa4\xb0\n\xe0\xa6\xb6\xe0\xa7\x81\xe0\xa6\x95\xe0\xa7\x8d\xe0\xa6\xb0\nFr.\nFri\n

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或者，从Java SE 8开始，您可以使用DayOfWeek#getDisplayName适用的Locale.

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import java.time.LocalDate;\nimport java.time.ZoneId;\nimport java.time.format.TextStyle;\nimport java.util.Locale;\n\npublic class Main {\n\n    public static void main(String args[]) {\n        // Replace ZoneId.systemDefault() with the applicable timezone e.g.\n        // ZoneId.of("Asia/Calcutta")\n        LocalDate today = LocalDate.now(ZoneId.systemDefault());\n\n        System.out.println(today.getDayOfWeek().getDisplayName(TextStyle.SHORT, Locale.forLanguageTag("hi")));\n        System.out.println(today.getDayOfWeek().getDisplayName(TextStyle.SHORT, Locale.forLanguageTag("bn")));\n        System.out.println(today.getDayOfWeek().getDisplayName(TextStyle.SHORT, Locale.forLanguageTag("de")));\n        System.out.println(today.getDayOfWeek().getDisplayName(TextStyle.SHORT, Locale.forLanguageTag("en")));\n    }\n}\n

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输出：

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\xe0\xa4\xb6\xe0\xa5\x81\xe0\xa4\x95\xe0\xa5\x8d\xe0\xa4\xb0\n\xe0\xa6\xb6\xe0\xa7\x81\xe0\xa6\x95\xe0\xa7\x8d\xe0\xa6\xb0\nFr.\nFri\n

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Answer 5

java.time

针对使用Java 8及更高版本的用户的更新。

ZoneId zoneId = ZoneId.of("America/Los_Angeles");

Instant instant = Instant.now();

ZonedDateTime zDateTime = instant.atZone(zoneId);

DayOfWeek day = zDateTime.getDayOfWeek();

显示输出。

System.out.println(day.getDisplayName(TextStyle.SHORT, Locale.US));
System.out.println(day.getDisplayName(TextStyle.NARROW, Locale.US));

运行时。在IdeOne.com上实时查看类似的代码。

周二

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