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# Package java.time.format

Provides classes to print and parse dates and times.

See: Description

- Class Summary
  Class | Description
  --- | ---
  DateTimeFormatter | Formatter for printing and parsing date-time objects.
  DateTimeFormatterBuilder | Builder to create date-time formatters.
  DecimalStyle | Localized decimal style used in date and time formatting.

- Enum Summary
  Enum | Description
  --- | ---
  FormatStyle | Enumeration of the style of a localized date, time or date-time formatter.
  ResolverStyle | Enumeration of different ways to resolve dates and times.
  SignStyle | Enumeration of ways to handle the positive/negative sign.
  TextStyle | Enumeration of the style of text formatting and parsing.

- Exception Summary
  Exception | Description
  --- | ---
  DateTimeParseException | An exception thrown when an error occurs during parsing.

## Package java.time.format Description

Provides classes to print and parse dates and times.

Printing and parsing is based around the `DateTimeFormatter` class. Instances are generally obtained from `DateTimeFormatter`, however `DateTimeFormatterBuilder` can be used if more power is needed.

Localization occurs by calling `withLocale(Locale)` on the formatter. Further customization is possible using `DecimalStyle`.

### Package specification

Unless otherwise noted, passing a null argument to a constructor or method in any class or interface in this package will cause a `NullPointerException` to be thrown. The Javadoc "@param" definition is used to summarise the null-behavior. The "@throws `NullPointerException`" is not explicitly documented in each method.

All calculations should check for numeric overflow and throw either an `ArithmeticException` or a `DateTimeException`.

Since:
  JDK1.8

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