Operations on arrays, primitive arrays (like int[]) and primitive wrapper arrays (like Integer[]).

Operations on bit-mapped fields.

Operations on boolean primitives and Boolean objects.

Character encoding names required of every implementation of the Java platform.

A contiguous range of characters, optionally negated.

A set of characters.

Operations on CharSets.

Operations on char primitives and Character objects.

Operates on classes without using reflection.

Date and time formatting utilities and constants.

A suite of utilities surrounding the use of the Calendar and Date object.

DoubleRange represents an inclusive range of doubles.

Duration formatting utilities and constants.

Abstract superclass for type-safe enums.

Abstract superclass for type-safe enums.

Utility class for accessing and manipulating Enum s.

Utility class for accessing and manipulating Enum s.

Assists in implementing equals(Object) methods.

Provides utilities for manipulating and examining Throwable objects.

FastDateFormat is a fast and thread-safe version of SimpleDateFormat .

FloatRange represents an inclusive range of floats.

Fraction is a Number implementation that stores fractions accurately.

Assists in implementing hashCode() methods.

IntRange represents an inclusive range of ints.

JVMRandom is a wrapper that supports all possible Random methods via the random() method and its system-wide Random object.

LongRange represents an inclusive range of longs.

A shared implementation of the nestable exception functionality.

Represents a range of Number objects.

NumberRange represents an inclusive range of Number objects of the same type.

Provides extra functionality for Java Number classes.

Provides extra functionality for Java Number classes.

Operations on Object.

Class used as a null placeholder where null has another meaning.

Operations for random Strings.

RandomUtils is a wrapper that supports all possible Random methods via the random() method and its system-wide Random object.

Range represents a range of numbers of the same type.

Assists in implementing toString() methods using reflection.

Assists with the serialization process and performs additional functionality based on serialization.

Works with ToStringBuilder to create a toString.

StopWatch provides a convenient API for timings.

Escapes and unescapes Strings for Java, Java Script, HTML, XML, and SQL.

Operations on String that are null safe.

Helpers for java.lang.System.

Assists in implementing toString() methods.

Controls String formatting for ToStringBuilder .

Assists in validating arguments.

Abstract superclass for type-safe enums with integer values suitable for use in switch statements.

Abstract superclass for type-safe enums with integer values suitable for use in switch statements.

Operations on Strings that contain words.