The lang component contains a set of java classes that provide helper methods for standard java classes, especially those found in the java.lang package in the sun jdk. the following classes are included:

* stringutils - helper for java.lang.string.
* charsetutils - methods for dealing with charsets, which are sets of
characters such as [a-z] and [abcdez].
* randomstringutils - helper for creating randomised strings.
* numberutils - helper for java.lang.number and its subclasses.
* numberrange - a range of numbers with an upper and lower bound.
* objectutils - helper for java.lang.object.
* serializationutils - helper for serializing objects.
* systemutils - utility class defining the java system properties.
* nestedexception package - a sub-package for the creation of nested
exceptions.
* enum package - a sub-package for the creation of enumerated types.
* builder package - a sub-package for the creation of equals, hashcode,
compareto and tostring methods.
this package contains the api documentation of libcommons-lang-java