| Interface | Description | 
|---|---|
| Builder<T> | 
 The Builder interface is designed to designate a class as a builder
 object in the Builder design pattern. | 
| CharacterPredicate | A predicate for selecting code points. | 
| FormatFactory | Format factory. | 
| TextRandomProvider | 
 TextRandomProvider implementations are used by  RandomStringGeneratoras a source of randomness. | 
| Class | Description | 
|---|---|
| AlphabetConverter | 
 Convert from one alphabet to another, with the possibility of leaving certain
 characters unencoded. | 
| CaseUtils | Case manipulation operations on Strings that contain words. | 
| CompositeFormat | Formats using one formatter and parses using a different formatter. | 
| ExtendedMessageFormat | Extends  java.text.MessageFormatto allow pluggable/additional formatting
 options for embedded format elements. | 
| FormattableUtils | Provides utilities for working with the  Formattableinterface. | 
| RandomStringGenerator | 
 Generates random Unicode strings containing the specified number of code points. | 
| RandomStringGenerator.Builder | A builder for generating  RandomStringGeneratorinstances. | 
| StrBuilder | Deprecated Deprecated as of 1.3, use  TextStringBuilderinstead. | 
| StringEscapeUtils | Escapes and unescapes  Strings for
 Java, Java Script, HTML and XML. | 
| StringEscapeUtils.Builder | Convenience wrapper for  StringBuilderproviding escape methods. | 
| StringSubstitutor | Substitutes variables within a string by values. | 
| StringTokenizer | Tokenizes a string based on delimiters (separators) and supporting quoting and ignored character concepts. | 
| StrLookup<V> | Deprecated Deprecated as of 1.3, use  StringLookupFactoryinstead. | 
| StrMatcher | Deprecated Deprecated as of 1.3, use  StringMatcherFactoryinstead. | 
| StrSubstitutor | Deprecated Deprecated as of 1.3, use  StringSubstitutorinstead. | 
| StrTokenizer | Deprecated Deprecated as of 1.3, use  StringTokenizerinstead. | 
| TextStringBuilder | Builds a string from constituent parts providing a more flexible and powerful API than StringBuffer. | 
| WordUtils | 
 Operations on Strings that contain words. | 
| Enum | Description | 
|---|---|
| CharacterPredicates | 
 Commonly used implementations of  CharacterPredicate. | 
Basic classes for text handling.
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