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This is a Date Utility with two purposes:

• Parse String to Date according to a target class, and the pattern strings.
• Format Date to String based on a pattern string.

• If you are using Gradle just add the following dependency to yourbuild.gradle.

implementation"com.github.joutvhu:date-parser:1.0.0"

• Or add the following dependency to yourpom.xml if you are using Maven.

<dependency>    <groupId>com.github.joutvhu</groupId>    <artifactId>date-parser</artifactId>    <version>1.0.0</version></dependency>

• withConvertor(Class<T> typeOfConvertor, Convertor<T> convertor) orwithConvertor(Convertor<T> convertor) used to add a custom convertor to theDateFormatter.

  • Use these methods to add aConvertor.

• withLocale(Locale defaultLocale) used to set defaultjava.util.Locale, if this value is null the default value isLocale.getDefault().

• withZone(TimeZone defaultZone) used to set defaultjava.util.TimeZone, if this value is null the default value isTimeZone.getDefault().

• withWeekFields(WeekFields defaultWeekFields) used to set defaultjava.time.temporal.WeekFields, if this value is null the default value isWeekFields.of(locale).

• withStrategyFactory(StrategyFactory strategyFactory) used to overrideStrategyFactory.

  • Use this method to add, update or delete aStrategy.

• parse(Class<T> type, String value, String... patterns) used to parse string to date.

  • type is the type of target object you want to get.
  • value is the input string you want to convert to the target object.
  • patterns are the possible formats of the input string.

• format(T object, String pattern) used to format an object to a target string.

  • object is the input object you want to convert to string.
  • pattern is the format of the target string.

• DateParser.formatter() will be return a newDateFormatter.

• DateParser.parse(Class<T> type, String value, String... patterns) is equivalent toDateParser.formatter().parse(Class<T> type, String value, String... patterns).

• DateParser.format(T object, String pattern) is equivalent toDateParser.formatter().format(T object, String pattern).

• Parse Date

Datedate =DateParser.formatter().parse(Date.class,"2021-06-27 21:52:25.408","yyyy-MM-dd HH:mm:ss.SSS");LocalDateTimelocalDateTime =DateParser.parse(LocalDateTime.class,"2021-06-27 21:52:25.408","yyyy-MM-dd HH:mm:ss.SSS");Instantinstant =DateParser.parse(Instant.class,"2021-06-28T02:22:48.780101Z","yyyy-MM-dd'T'HH:mm:ss.SSSZ");DayOfWeekdayOfWeek =DateParser.formatter().withWeekFields(WeekFields.ISO).parse(DayOfWeek.class,"Sun","E");

• Format Date

Stringdate =DateParser.format(newDate(),"MMM dd, yyyy hh:mm:ss a");Stringinstant =DateParser.format(Instant.now(),"yyyy-MM-dd'T'HH:mm:ss.SSSX");StringyearMonth =DateParser.format(YearMonth.of(2021,Month.DECEMBER),"Mo yyyy");