Added in [API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) # 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 ## Interfaces |---|---| | [AttributedCharacterIterator](https://developer.android.com/reference/java/text/AttributedCharacterIterator) | An `AttributedCharacterIterator` allows iteration through both text and related attribute information. | | [CharacterIterator](https://developer.android.com/reference/java/text/CharacterIterator) | This interface defines a protocol for bidirectional iteration over text. | ## Classes |---|---| | [Annotation](https://developer.android.com/reference/java/text/Annotation) | An Annotation object is used as a wrapper for a text attribute value if the attribute has annotation characteristics. | | [AttributedCharacterIterator.Attribute](https://developer.android.com/reference/java/text/AttributedCharacterIterator.Attribute) | Defines attribute keys that are used to identify text attributes. | | [AttributedString](https://developer.android.com/reference/java/text/AttributedString) | An AttributedString holds text and related attribute information. | | [Bidi](https://developer.android.com/reference/java/text/Bidi) | This class implements the Unicode Bidirectional Algorithm. | | [BreakIterator](https://developer.android.com/reference/java/text/BreakIterator) | The `BreakIterator` class implements methods for finding the location of boundaries in text. | | [ChoiceFormat](https://developer.android.com/reference/java/text/ChoiceFormat) | A `ChoiceFormat` allows you to attach a format to a range of numbers. | | [CollationElementIterator](https://developer.android.com/reference/java/text/CollationElementIterator) | The `CollationElementIterator` class is used as an iterator to walk through each character of an international string. | | [CollationKey](https://developer.android.com/reference/java/text/CollationKey) | A `CollationKey` represents a `String` under the rules of a specific `Collator` object. | | [Collator](https://developer.android.com/reference/java/text/Collator) | The `Collator` class performs locale-sensitive `String` comparison. | | [DateFormat](https://developer.android.com/reference/java/text/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](https://developer.android.com/reference/java/text/DateFormat.Field) | Defines constants that are used as attribute keys in the `AttributedCharacterIterator` returned from `DateFormat.formatToCharacterIterator` and as field identifiers in `FieldPosition`. | | [DateFormatSymbols](https://developer.android.com/reference/java/text/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](https://developer.android.com/reference/java/text/DecimalFormat) | `DecimalFormat` is a concrete subclass of `NumberFormat` that formats decimal numbers. | | [DecimalFormatSymbols](https://developer.android.com/reference/java/text/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](https://developer.android.com/reference/java/text/FieldPosition) | `FieldPosition` is a simple class used by `Format` and its subclasses to identify fields in formatted output. | | [Format](https://developer.android.com/reference/java/text/Format) | `Format` is an abstract base class for formatting locale-sensitive information such as dates, messages, and numbers. | | [Format.Field](https://developer.android.com/reference/java/text/Format.Field) | Defines constants that are used as attribute keys in the `AttributedCharacterIterator` returned from `Format.formatToCharacterIterator` and as field identifiers in `FieldPosition`. | | [MessageFormat](https://developer.android.com/reference/java/text/MessageFormat) | `MessageFormat` provides a means to produce concatenated messages in a language-neutral way. | | [MessageFormat.Field](https://developer.android.com/reference/java/text/MessageFormat.Field) | Defines constants that are used as attribute keys in the `AttributedCharacterIterator` returned from `MessageFormat.formatToCharacterIterator`. | | [Normalizer](https://developer.android.com/reference/java/text/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. | | [NumberFormat](https://developer.android.com/reference/java/text/NumberFormat) | `NumberFormat` is the abstract base class for all number formats. | | [NumberFormat.Field](https://developer.android.com/reference/java/text/NumberFormat.Field) | Defines constants that are used as attribute keys in the `AttributedCharacterIterator` returned from `NumberFormat.formatToCharacterIterator` and as field identifiers in `FieldPosition`. | | [ParsePosition](https://developer.android.com/reference/java/text/ParsePosition) | `ParsePosition` is a simple class used by `Format` and its subclasses to keep track of the current position during parsing. | | [RuleBasedCollator](https://developer.android.com/reference/java/text/RuleBasedCollator) | The `RuleBasedCollator` class is a concrete subclass of `Collator` that provides a simple, data-driven, table collator. | | [SimpleDateFormat](https://developer.android.com/reference/java/text/SimpleDateFormat) | `SimpleDateFormat` is a concrete class for formatting and parsing dates in a locale-sensitive manner. | | [StringCharacterIterator](https://developer.android.com/reference/java/text/StringCharacterIterator) | `StringCharacterIterator` implements the `CharacterIterator` protocol for a `String`. | ## Enums |---|---| | [Normalizer.Form](https://developer.android.com/reference/java/text/Normalizer.Form) | This enum provides constants of the four Unicode normalization forms that are described in [Unicode Standard Annex #15 --- Unicode Normalization Forms](https://www.unicode.org/reports/tr15/) and two methods to access them. | ## Exceptions |---|---| | [ParseException](https://developer.android.com/reference/java/text/ParseException) | Signals that an error has been reached unexpectedly while parsing. | - ## Interfaces - [AttributedCharacterIterator](https://developer.android.com/reference/java/text/AttributedCharacterIterator) - [CharacterIterator](https://developer.android.com/reference/java/text/CharacterIterator) - ## Classes - [Annotation](https://developer.android.com/reference/java/text/Annotation) - [AttributedCharacterIterator.Attribute](https://developer.android.com/reference/java/text/AttributedCharacterIterator.Attribute) - [AttributedString](https://developer.android.com/reference/java/text/AttributedString) - [Bidi](https://developer.android.com/reference/java/text/Bidi) - [BreakIterator](https://developer.android.com/reference/java/text/BreakIterator) - [ChoiceFormat](https://developer.android.com/reference/java/text/ChoiceFormat) - [CollationElementIterator](https://developer.android.com/reference/java/text/CollationElementIterator) - [CollationKey](https://developer.android.com/reference/java/text/CollationKey) - [Collator](https://developer.android.com/reference/java/text/Collator) - [DateFormat](https://developer.android.com/reference/java/text/DateFormat) - [DateFormat.Field](https://developer.android.com/reference/java/text/DateFormat.Field) - [DateFormatSymbols](https://developer.android.com/reference/java/text/DateFormatSymbols) - [DecimalFormat](https://developer.android.com/reference/java/text/DecimalFormat) - [DecimalFormatSymbols](https://developer.android.com/reference/java/text/DecimalFormatSymbols) - [FieldPosition](https://developer.android.com/reference/java/text/FieldPosition) - [Format](https://developer.android.com/reference/java/text/Format) - [Format.Field](https://developer.android.com/reference/java/text/Format.Field) - [MessageFormat](https://developer.android.com/reference/java/text/MessageFormat) - [MessageFormat.Field](https://developer.android.com/reference/java/text/MessageFormat.Field) - [Normalizer](https://developer.android.com/reference/java/text/Normalizer) - [NumberFormat](https://developer.android.com/reference/java/text/NumberFormat) - [NumberFormat.Field](https://developer.android.com/reference/java/text/NumberFormat.Field) - [ParsePosition](https://developer.android.com/reference/java/text/ParsePosition) - [RuleBasedCollator](https://developer.android.com/reference/java/text/RuleBasedCollator) - [SimpleDateFormat](https://developer.android.com/reference/java/text/SimpleDateFormat) - [StringCharacterIterator](https://developer.android.com/reference/java/text/StringCharacterIterator) - ## Enums - [Normalizer.Form](https://developer.android.com/reference/java/text/Normalizer.Form) - ## Exceptions - [ParseException](https://developer.android.com/reference/java/text/ParseException)