Shuffles randomly the elements of the specified array using the <a href="https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle">Fisher-Yates shuf

Returns the number of bits of space actually in use by this {@link BitSet} to represent bit values. The maximum element in the set is the size - 1st e

Null safe comparison of Comparables. <p> TODO Move to ComparableUtils. </p> @param <T> type of the values processed by this method @param values t

Reads an accessible {@link Field}. @param field the field to use. @param target the object to call on, may be {@code null} for

Returns a composed {@link TriConsumer} that performs, in sequence, this operation followed by the {@code after} operation. If performing either operat

Clears the string builder (convenience Collections API style method). <p> This method does not reduce the size of the internal character buffer. To do

Finds the first index within a CharSequence, handling {@code null}. This method uses {@link String#indexOf(String, int)} if possible. <p> A {@code nu

Finds the n-th index within a CharSequence, handling {@code null}. This method uses {@link String#indexOf(String)} if possible. <p> <strong>Note:</str

Gets an accessible {@link Field} by name respecting scope. Superclasses/interfaces will be considered. @param cls the {@link Class} to ref

Finds the last index within a CharSequence, handling {@code null}. This method uses {@link String#lastIndexOf(String)} if possible. <p> A {@code null

Returns the minimum value in an array. @param array an array, must not be null or empty. @return the minimum value in the array. @throws NullPointerE

Reverses the order of the given array. <p> This method does nothing for a {@code null} input array. </p> @param array the array to reverse, may be {

Gets a date ceiling, leaving the field specified as the most significant field. <p>For example, if you had the date-time of 28 Mar 2002 13:45:01.231,

Finds the first index within a CharSequence, handling {@code null}. This method uses {@link String#indexOf(String, int)} if possible. <p> A {@code nu

Invokes a named method without parameters. <p> This is a convenient wrapper for {@link #invokeMethod(Object object, boolean forceAccess, String metho

Sets all of the bits in this BitSet to {@code false}. @return {@code this} instance.

Gets the length of the specified array. This method handles {@link Object} arrays and primitive arrays. <p> If the input array is {@code null}, {@code

Null-safe version of {@code cls.getSimpleName()} @param cls the class for which to get the simple name; may be null. @return the simple class name or

Converts a Boolean to a boolean handling {@code null} by returning {@code false}. <pre> BooleanUtils.toBoolean(Boolean.TRUE) = true BooleanUtils

Abbreviates a String using ellipses. This will convert "Now is the time for all good men" into "Now is the time for..." <p> Specifically: </p> <ul> <

Truncates a String. This will turn "Now is the time for all good men" into "Now is the time for". <p> Specifically: </p> <ul> <li>If {@code str} is l

Checks that the specified object reference is not {@code null} and throws a customized {@link InvalidObjectException} if it is. This method is designe

Adds the result of {@code super.equals()} to this builder. @param superEquals the result of calling {@code super.equals()} @return {@code this} inst

Tests if the CharSequence contains any character in the given set of characters. <p> A {@code null} CharSequence will return {@code false}. A {@code

Convert a {@code long[]} created by {@link EnumUtils#generateBitVectors} into the set of enum values that it represents. <p>If you store this value,

Returns the value of this MutableBoolean as a boolean. @return the boolean value represented by this object.

Gets the canonical class name for a {@link Class}. @param cls the class for which to get the canonical class name; may be null. @return the canonical

Gets a formatter instance using the default pattern in the default locale. @return a date/time formatter.

Create the same toString() as Object.toString(). @param o the object to create the string for. @return a String in the Object.toString format.

Handles the common {@link Formattable} operations of truncate-pad-append, with no ellipsis on precision overflow, and padding width underflow with spa

Creates a range with the specified minimum and maximum values (both inclusive). <p>The range uses the natural ordering of the elements to determine w

Compares this range to another object to test if they are equal. <p>To be equal, the minimum and maximum values must be equal, which ignores any diff

Delegates to {@link TimeZone#getTimeZone(String)}, on Java 25 and up, maps an ID if it's a key in {@link ZoneId#SHORT_IDS}. <p> On Java 25, calling {@

Returns the given locale if non-{@code null}, otherwise {@link Locale#getDefault()}. @param locale a locale or {@code null}. @return the given locale

Checks whether there are any more tokens. @return true if there are more tokens.

Uses {@link ReflectionToStringBuilder} to generate a {@code toString} for the specified object. @param object the Object to be output @return the St

Converts an int to a Boolean using the convention that {@code zero} is {@code false}, everything else is {@code true}. <pre> BooleanUtils.toBoolean

Creates a new {@link ComparableCheckBuilder}. @param a base object in the further comparison @param <A> type of the base object @return a builder obj

Creates a matcher for a string. @param str the string to match, null or empty matches nothing. @return a new Matcher for the given String.

Formats the time gap as a string, using the specified format. Padding the left-hand side side of numbers with zeroes is optional. @param startMillis

Invokes a named {@code static} method whose parameter type matches the object type. <p> This method delegates the method search to {@link #getMatchin

Replaces a portion of the string builder with another string. The length of the inserted string does not have to match the removed length. @param sta

Creates a matcher from a character. @param ch the character to match, must not be null. @return a new Matcher for the given char.

Gets an unmodifiable list of {@link Diff}s. The list may be empty if there were no differences between the objects. @return an unmodifiable list of {

Tests whether a {@link Class} is public. @param cls Class to test. @return {@code true} if {@code cls} is public. @since 3.13.0

Inserts the value into this builder. @param index the index to add at, must be valid. @param value the value to insert. @return {@code this} instan

Checks whether this range is completely before the specified range. <p>This method may fail if the ranges have two different comparators or element t

Replaces all the occurrences of variables in the given source object with their matching values from the map. @param <V> The type of the values in th

Converts an array of primitive booleans to objects. <p>This method returns {@code null} for a {@code null} input array.</p> @param array a {@code b

Gets the annotation object with the given annotation type that is present on the given method or optionally on any equivalent method in super classes

Gets the canonical name minus the package name from a {@link Class}. @param cls the class for which to get the short canonical class name; may be nul

Concatenates multiple boolean arrays into a single array. <p> This method combines all input arrays in the order they are provided, creating a new arr

Removes the occurrences of the specified element from the specified boolean array. <p> All subsequent elements are shifted to the left (subtracts one

Removes the occurrences of the specified element from the specified boolean array. <p> All subsequent elements are shifted to the left (subtracts one

Builds a {@code toString} value using the default {@link ToStringStyle} through reflection. <p> It uses {@code AccessibleObject.setAccessible} to gai

Appends to the {@code toString} a {@code boolean} value. @param value the value to add to the {@code toString} @return {@code this} instance.

Gets the Levenshtein distance between two Strings. <p> This is the number of changes needed to change one String into another, where each change is a

Gets the class name minus the package name from a {@link Class}. @param cls the class to get the short name for. @return the class name without the p

Constructs a {@link CharRange} over a single character. @param ch only character in this range. @return the new CharRange object. @since 2.5

Tests whether the given object is an Object array or a primitive array in a null-safe manner. <p> A {@code null} {@code object} Object will return {@

Constructs a {@link CharRange} over a set of characters. <p>If start and end are in the wrong order, they are reversed. Thus {@code a-e} is the same

Replaces each substring of the text String that matches the given regular expression pattern with the given replacement. This method is a {@code null

Returns a composed {@link FailablePredicate} like {@link Predicate#and(Predicate)}. @param other a predicate that will be logically-ANDed with this p

Returns the "logical size" of this {@link BitSet}: the index of the highest set bit in the {@link BitSet} plus one. Returns zero if the {@link BitSet}

Validate that the argument condition is {@code true}; otherwise throwing an exception. This method is useful when validating according to an arbitrary

Tests whether this {@link CharSet} contain the specified character {@code ch}. <p> Examples using the negation character: </p> <pre> CharSet.getIn

Tests that the CharSequence does not contain certain characters. <p> A {@code null} CharSequence will return {@code true}. A {@code null} invalid cha

Wraps a string with a char. <pre> StringUtils.wrap(null, ) = null StringUtils.wrap("", ) = "" StringUtils.wrap("ab", '\0') = "ab"

Converts the first 4 bits of a binary (represented as boolean array) in big-endian MSB0 bit ordering to a hexadecimal digit. <p> (1, 0, 0, 0) is conv

Returns a composed {@link FailablePredicate} like {@link Predicate#and(Predicate)}. @param other a predicate that will be logically-ORed with this pr

Writes an accessible {@link Field}. @param field to write. @param target the object to call on, may be {@code null} for {@code

Reads the named {@code public} {@link Field}. Only the class of the specified object will be considered. @param target the object to refle

Splits the provided text into an array, using whitespace as the separator, preserving all tokens, including empty tokens created by adjacent separator

Extracts a portion of this string builder as a string. @param start the start index, inclusive, must be valid. @return the new string. @throws Index

Returns the given non-null instant, or {@link Instant#EPOCH} if null. @param instant the instant to test, may be null. @return the given non-null ins

Adds all the elements of the given arrays into a new array. <p> The new array contains all of the element of {@code array1} followed by all of the ele

Gets the value of this mutable. @return the stored value. @deprecated Use {@link #get()}.

Wraps a single line of text, identifying words by {@code ' '}. <p>New lines will be separated by the system property line separator. Very long words,

Gets the set of character ranges. <p> Package private for testing. </p> @return the set of character ranges.

Maps the given instances as unchecked. @param <T> The result type returned by the Futures' {@link #get()} and {@link #get(long, TimeUnit)} methods. @

Removes the first occurrence of the specified element from the specified array. All subsequent elements are shifted to the left (subtracts one from th

Takes an argument in set-syntax, see evaluateSet, and returns the number of characters present in the specified string. <pre> CharSetUtils.count(null

Checks if two annotations are equal using the criteria for equality presented in the {@link Annotation#equals(Object)} API docs. @param a1 the first

Gets the GMT TimeZone. @return A TimeZone with a raw offset of zero.

Replaces the first substring of the text string that matches the given regular expression pattern with the given replacement. This method is a {@code