Package org.apache.commons.lang

Provides highly reusable static utility methods, chiefly concerned with adding value to java.lang and other standard core classes.

Class Summary

ArrayUtils Operations on arrays, primitive arrays (like int[]) and primitive wrapper arrays (like Integer[]).
BitField Operations on bit-mapped fields.
BooleanUtils Operations on boolean primitives and Boolean objects.
CharEncoding Character encoding names required of every implementation of the Java platform.
CharRange A contiguous range of characters, optionally negated.
CharSet A set of characters.
CharSetUtils Operations on CharSets.
CharUtils Operations on char primitives and Character objects.
ClassUtils Operates on classes without using reflection.
LocaleUtils Operations to assist when working with a Locale.
NumberRange Represents a range of Number objects.
NumberUtils Provides extra functionality for Java Number classes.
ObjectUtils Operations on Object.
ObjectUtils.Null Class used as a null placeholder where null has another meaning.
RandomStringUtils Operations for random Strings.
SerializationUtils Assists with the serialization process and performs additional functionality based on serialization.
StringEscapeUtils Escapes and unescapes Strings for Java, Java Script, HTML, XML, and SQL.
StringUtils Operations on String that are null safe.
SystemUtils Helpers for java.lang.System.
Validate Assists in validating arguments.
WordUtils Operations on Strings that contain words.

Exception Summary

IllegalClassException Thrown when an object is an instance of an unexpected type (a class or interface).
IncompleteArgumentException Thrown to indicate an incomplete argument to a method.
NotImplementedException Thrown to indicate that a block of code has not been implemented.
NullArgumentException Thrown to indicate that an argument was null and should not have been.
SerializationException Exception thrown when the Serialization process fails.
UnhandledException Thrown when it is impossible or undesirable to consume or throw a checked exception.
Provides highly reusable static utility methods, chiefly concerned with adding value to java.lang and other standard core classes.