Module java.base

Package java.text


package java.text
Provides classes and interfaces for handling text, dates, numbers, and messages in a manner independent of natural languages. This means your main application or applet can be written to be language-independent, and it can rely upon separate, dynamically-linked localized resources. This allows the flexibility of adding localizations for new localizations at any time.

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:

  • Classes for iteration over text
  • Classes for formatting and parsing
  • Classes for string collation
Since:
1.1
  • Related Packages
    Package
    Description
    Service provider classes for the classes in the java.text package.
  • Interface Summary
    Interface
    Description
    An AttributedCharacterIterator allows iteration through both text and related attribute information.
    This interface defines a protocol for bidirectional iteration over text.
  • Class Summary
    Class
    Description
    An Annotation object is used as a wrapper for a text attribute value if the attribute has annotation characteristics.
    Defines attribute keys that are used to identify text attributes.
    An AttributedString holds text and related attribute information.
    This class implements the Unicode Bidirectional Algorithm.
    The BreakIterator class implements methods for finding the location of boundaries in text.
    A ChoiceFormat allows you to attach a format to a range of numbers.
    The CollationElementIterator class is used as an iterator to walk through each character of an international string.
    A CollationKey represents a String under the rules of a specific Collator object.
    The Collator class performs locale-sensitive String comparison.
    CompactNumberFormat is a concrete subclass of NumberFormat that formats a decimal number in its compact form.
    DateFormat is an abstract class for date/time formatting subclasses which formats and parses dates or time in a language-independent manner.
    Defines constants that are used as attribute keys in the AttributedCharacterIterator returned from DateFormat.formatToCharacterIterator and as field identifiers in FieldPosition.
    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 is a concrete subclass of NumberFormat that formats decimal numbers.
    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 is a simple class used by Format and its subclasses to identify fields in formatted output.
    Format is an abstract base class for formatting locale-sensitive information such as dates, messages, and numbers.
    Defines constants that are used as attribute keys in the AttributedCharacterIterator returned from Format.formatToCharacterIterator and as field identifiers in FieldPosition.
    MessageFormat provides a means to produce concatenated messages in a language-neutral way.
    Defines constants that are used as attribute keys in the AttributedCharacterIterator returned from MessageFormat.formatToCharacterIterator.
    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.
    NumberFormat is the abstract base class for all number formats.
    Defines constants that are used as attribute keys in the AttributedCharacterIterator returned from NumberFormat.formatToCharacterIterator and as field identifiers in FieldPosition.
    ParsePosition is a simple class used by Format and its subclasses to keep track of the current position during parsing.
    The RuleBasedCollator class is a concrete subclass of Collator that provides a simple, data-driven, table collator.
    SimpleDateFormat is a concrete class for formatting and parsing dates in a locale-sensitive manner.
    StringCharacterIterator implements the CharacterIterator protocol for a String.
  • Enum Class Summary
    Enum Class
    Description
    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.
    A number format style.
  • Exception Summary
    Exception
    Description
    Signals that an error has been reached unexpectedly while parsing.