These classes are capable of formatting dates, numbers, and messages, parsing; searching and sorting strings; and iterating over characters, words, sentences, and line breaks. This package contains three main groups of classes and interfaces:
| Class | Description |
|---|---|
| Annotation | An Annotation object is used as a wrapper for a text attribute value if the attribute has annotation characteristics. |
| AttributedCharacterIterator | An AttributedCharacterIterator allows iteration through both text and related attribute information. |
| AttributedCharacterIterator.Attribute | Defines attribute keys that are used to identify text attributes. |
| AttributedString | An AttributedString holds text and related attribute information. |
| Bidi | This class implements the Unicode Bidirectional Algorithm. |
| BreakIterator | The BreakIterator class implements methods for finding the location of boundaries in text. |
| CharacterIterator | This interface defines a protocol for bidirectional iteration over text. |
| ChoiceFormat | A ChoiceFormat allows you to attach a format to a range of numbers. |
| CollationElementIterator | The CollationElementIterator class is used as an iterator to walk through each character of an international string. |
| CollationKey | A CollationKey represents a String under the rules of a specific Collator object. |
| Collator | The Collator class performs locale-sensitive String comparison. |
| CompactNumberFormat | CompactNumberFormat is a concrete subclass of NumberFormat that formats a decimal number in its compact form. |
| DateFormat | DateFormat is an abstract class for date/time formatting subclasses which formats and parses dates or time in a language-independent manner. |
| DateFormat.Field | Defines constants that are used as attribute keys in the AttributedCharacterIterator returned from DateFormat.formatToCharacterIterator and as field identifiers in FieldPosition. |
| DateFormatSymbols | DateFormatSymbols is a public class for encapsulating localizable date-time formatting data, such as the names of the months, the names of the days of the week, and the time zone data. |
| DecimalFormat | DecimalFormat is a concrete subclass of NumberFormat that formats decimal numbers. |
| DecimalFormatSymbols | This class represents the set of symbols (such as the decimal separator, the grouping separator, and so on) needed by DecimalFormat to format numbers. |
| FieldPosition | FieldPosition is a simple class used by Format and its subclasses to identify fields in formatted output. |
| Format | Format is an abstract base class for formatting locale-sensitive information such as dates, messages, and numbers. |
| Format.Field | Defines constants that are used as attribute keys in the AttributedCharacterIterator returned from Format.formatToCharacterIterator and as field identifiers in FieldPosition. |
| MessageFormat | MessageFormat provides a means to produce concatenated messages in a language-neutral way. |
| MessageFormat.Field | Defines constants that are used as attribute keys in the AttributedCharacterIterator returned from MessageFormat.formatToCharacterIterator. |
| Normalizer | This class provides the method normalize which transforms Unicode text into an equivalent composed or decomposed form, allowing for easier sorting and searching of text. |
| Normalizer.Form | This enum provides constants of the four Unicode normalization forms that are described in Unicode Standard Annex #15 — Unicode Normalization Forms and two methods to access them. |
| NumberFormat | NumberFormat is the abstract base class for all number formats. |
| NumberFormat.Field | Defines constants that are used as attribute keys in the AttributedCharacterIterator returned from NumberFormat.formatToCharacterIterator and as field identifiers in FieldPosition. |
| NumberFormat.Style | A number format style. |
| ParseException | Signals that an error has been reached unexpectedly while parsing. |
| ParsePosition | ParsePosition is a simple class used by Format and its subclasses to keep track of the current position during parsing. |
| RuleBasedCollator | The RuleBasedCollator class is a concrete subclass of Collator that provides a simple, data-driven, table collator. |
| SimpleDateFormat | SimpleDateFormat is a concrete class for formatting and parsing dates in a locale-sensitive manner. |
| StringCharacterIterator | StringCharacterIterator implements the CharacterIterator protocol for a String. |
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