Gets a Calendar fragment for any unit. @param calendar the calendar to work with, not null. @param fragment the Calendar field part of calendar to ca

{@inheritDoc}

Returns either the passed in CharSequence, or if the CharSequence is {@link #isBlank(CharSequence) blank} (whitespaces, empty ({@code ""}), or {@code

Returns either the passed in CharSequence, or if the CharSequence is empty or {@code null}, the value supplied by {@code defaultStrSupplier}. <p> Cal

Gets the nanosecond part of a Duration converted to milliseconds. <p> Handy when calling an API that takes a long of milliseconds and an int of nanose

Gets the list of {@link Throwable} objects in the exception chain. <p>A throwable without cause will return a list containing one element - the input

Returns the value's hash code or {@code 0} if the value is {@code null}. @return the value's hash code or {@code 0} if the value is {@code null}.

Converts an array of char into an int using the default (little-endian, LSB0) byte and bit ordering. @param src the hexadecimal string to convert

Converts an array of char into a long using the default (little-endian, LSB0) byte and bit ordering. @param src the hexadecimal string to convert

Converts an array of char into a short using the default (little-endian, LSB0) byte and bit ordering. @param src the hexadecimal string to conver

Handles a method invocation on the proxy object. @param proxy the proxy instance. @param method the method to be invoked. @param parameters the param

Invokes a {@code static} method whose parameter types match exactly the object types. <p> This uses reflection to invoke the method obtained from a c

Creates a range using the specified element as both the minimum and maximum in this range. <p>The range uses the natural ordering of the elements to

Tests if any of the CharSequences are {@link #isBlank(CharSequence) blank} (whitespaces, empty ({@code ""}), or {@code null}). <p> Whitespace is defi

Tests whether the character is ASCII 7 bit control. <pre> CharUtils.isAsciiControl('a') = false CharUtils.isAsciiControl('A') = false CharUti

Tests if none of the CharSequences are empty ("") or null. <pre> StringUtils.isNoneEmpty((String) null) = false StringUtils.isNoneEmpty((String[])

Tests if a CharSequence is not {@link #isBlank(CharSequence) blank} (whitespaces, empty ({@code ""}), or {@code null}). <p> Whitespace is defined by

Tests whether the named charset is supported. <p>This is similar to <a href="https://docs.oracle.com/javase/8/docs/api/java/nio/charset/Charset.html#

Gets the leftmost {@code len} characters of a String. <p> If {@code len} characters are not available, or the String is {@code null}, the String will

Returns the greater of two {@link Comparable} values, ignoring null. <p> For three or more values, use {@link ObjectUtils#max(Comparable...)}. </p> @

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

Returns the lesser of two {@link Comparable} values, ignoring null. <p> For three or more values, use {@link ObjectUtils#min(Comparable...)}. </p> @p

Convenience method to advance parse position by 1 @param pos ParsePosition @return {@code pos}

Generates a random long between 0 (inclusive) and {@link Long#MAX_VALUE} ({@value Long#MAX_VALUE} exclusive). @return the random long. @see #nextLong

Streams the non-null elements of a collection. @param <E> The type of elements in the collection. @param collection the collection to stream or null.

Gets the immutable triple of nulls singleton. @param <L> The left element of this triple. Value is {@code null}. @param <M> The middle element of thi

Runs the lambda and returns the duration of its execution. @param <E> The type of exception throw by the lambda. @param consumer What to execute. @re

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

Tests if two {@code objects} by using reflection. <p>It uses {@code AccessibleObject.setAccessible} to gain access to private fields. This means that

Removes each substring of the text String that matches the given regular expression. This method is a {@code null} safe equivalent to: <ul> <li>{@cod

Removes each substring of the source String that matches the given regular expression using the DOTALL option. This call is a {@code null} safe equiv

Rethrows a {@link Throwable} as an unchecked exception. If the argument is already unchecked, namely a {@link RuntimeException} or {@link Error} then

Gets the rightmost {@code len} characters of a String. <p> If {@code len} characters are not available, or the String is {@code null}, the String wil

Any January 1 could be considered as the ultimate extreme. Instead of comparing the results if the input has a difference of 1 millisecond we check th

Sets the bits from the specified {@code fromIndex} (inclusive) to the specified {@code toIndex} (inclusive) to {@code true}. @param fromIndex index o

Sets the quote matcher to use. <p> The quote character is used to wrap data between the tokens. This enables delimiters to be entered as data. </p> @

Sets the value of this mutable. @param value the value to store. @throws NullPointerException if the object is null and null is invalid. @throws Clas

Splits the provided text into an array, separator string specified. <p> The separator(s) will not be included in the returned String array. Adjacent

Returns a new {@link CharSequence} that is a subsequence of this sequence starting with the {@code char} value at the specified index. <p>This provid

Converts a {@link String} to a {@code byte}, returning {@code zero} if the conversion fails. <p> If the string is {@code null}, {@code zero} is retur

Converts an amount and TimeUnit into a Duration. @param amount the amount of the duration, measured in terms of the unit, positive or negative @par

Converts a boolean to an int using the convention that {@code true} is {@code 1} and {@code false} is {@code 0}. <pre> BooleanUtils.toInteger(true)

Converts a {@link String} to a {@code short}, returning {@code zero} if the conversion fails. <p> If the string is {@code null}, {@code zero} is retu

Trims the builder by removing characters less than or equal to a space from the beginning and end. @return {@code this} instance.

Specify upper bounds of the wildcard type to build. @param bounds to set. @return {@code this} instance.

Converts the specified wrapper class to its corresponding primitive class. <p> This method is the counter part of {@code primitiveToWrapper()}. If th

Adds the given {@link Processor} with the given keys to the map. @param keys The keys. @param processor The {@link Processor} to add. @throws Il

Tests if two {@code boolean}s are equal. @param fieldName the field name. @param lhs the left-hand side {@code boolean}. @param rhs the r

Appends two digits to the given buffer. @param buffer the buffer to append to. @param value the value to append digits from. @throws IOException If a

Appends the value of the specified calendar to the output buffer based on the rule implementation. @param buf the output buffer. @param calendar cale

Applies this function to the given arguments. @param t the first function argument. @param u the second function argument. @return the function resul

Creates a predicate to test if {@code [b <= a <= c]} or {@code [b >= a >= c]} where the {@code a} is the tested object. @param b the object to compar

Returns a copy of the given array of size 1 greater than the argument. The last value of the array is left to the default value. @param array The arr

Divide the value of this fraction by another. @param fraction the fraction to divide by, must not be {@code null} @return a {@link Fraction} instanc

Finds all active threads which match the given predicate. @param predicate the predicate. @return An unmodifiable {@link Collection} of active thread

Returns the first value in the array which is not {@code null}. If all the values are {@code null} or the array is {@code null} or empty then {@code n

Formats a {@link Calendar} object. @param calendar the calendar to format. @return the formatted string.

Gets the full list of label-value pairs defined in the contextual data. @return the list of pairs, not {@code null}

Gets a date formatter instance using the specified style in the default time zone and locale. @param style date style: {@link #FULL}, {@link #LONG},

Gets an array containing the sole value of {@link Object} if {@link WildcardType#getUpperBounds()} returns an empty array. Otherwise, it returns the r

Gets the value for the specified BitField, appropriately shifted right, as a short. <p> Many users of a BitField will want to treat the specified bits

Gets the list of {@link Throwable} objects in the exception chain. <p>A throwable without cause will return an array containing one element - the inp

Tests if the object passed to {@link #is} is greater than {@code b} @param b the object to compare to the base object @return true if the value retur

Checks whether there are any previous tokens that can be iterated to. @return true if there are previous tokens.

Returns the hexadecimal hash code for the given object per {@link System#identityHashCode(Object)}. <p> Short hand for {@code Integer.toHexString(Syst

Returns a new instance of the specified class inferring the right constructor from the types of the arguments. <p> This locates and calls a construct

Checks if an array is empty or {@code null}. @param array the array to test. @return {@code true} if the array is empty or {@code null}.

Tests whether the character is ASCII 7 bit alphabetic lower case. <pre> CharUtils.isAsciiAlphaLower('a') = true CharUtils.isAsciiAlphaLower('A')

Tests whether the character is ASCII 7 bit alphabetic upper case. <pre> CharUtils.isAsciiAlphaUpper('a') = false CharUtils.isAsciiAlphaUpper('A'

Tests whether the character is ASCII 7 bit printable. <pre> CharUtils.isAsciiPrintable('a') = true CharUtils.isAsciiPrintable('A') = true Cha

Checks whether the float value is infinite. @return true if infinite

Is this {@link CharRange} negated. <p>A negated range includes everything except that defined by the start and end characters.</p> @return {@code tr

Tests if the object passed to {@link #is} is less than {@code b} @param b the object to compare to the base object @return true if the value returned

Returns the current time in nanoseconds. This method is used to obtain the current time. This is needed to calculate the check intervals correctly. @

Generates a random double between 0 (inclusive) and {@link Double#MAX_VALUE} ({@value Double#MAX_VALUE} exclusive). @return the random double. @see #

Gets the index of the next token to return. @return the next token index.

Performs a logical <strong>OR</strong> of this bit set with the bit set argument. This bit set is modified so that a bit in it has the value {@code tr

Gets the current thread's {@link ThreadLocalRandom} for {@code shuffle} methods that don't take a {@link Random} argument. @return the current Thread

Generates a random long between 0 (inclusive) and {@link Long#MAX_VALUE} ({@value Long#MAX_VALUE}, exclusive). @return the random long. @see #randomL

Reduce the fraction to the smallest values for the numerator and denominator, returning the result. <p> For example, if this fraction represents 2/4,

Sets the field delimiter character. @param delim the delimiter character to use. @return {@code this} instance.

Sets the field delimiter matcher. <p> The delimiter is used to separate one token from another. </p> @param delim the delimiter matcher to use. @ret

Sets the field names to include. {@code null} or empty means all fields are included. All fields are included by default. This method will override th

Sets the quote character to use. <p> The quote character is used to wrap data between the tokens. This enables delimiters to be entered as data. </p>

Sets the right element of the pair. @param right the new value of the right element, may be null.

Sets the variable default value delimiter matcher to use. <p> The variable default value delimiter is the character or characters that delimit the var

Stops this StopWatch. <p> This method ends a new timing session, allowing the time to be retrieved. </p> @throws IllegalStateException if this StopW