Class
Description
This class provides a skeletal implementation of the Collection
interface, to minimize the effort required to implement this interface.
This class provides a skeletal implementation of the
List
interface to minimize the effort required to implement this interface
backed by a "random access" data store (such as an array).
This class provides a skeletal implementation of the Map
interface, to minimize the effort required to implement this interface.
An Entry maintaining a key and a value.
An unmodifiable Entry maintaining a key and a value.
This class provides skeletal implementations of some
Queue
operations.
This class provides a skeletal implementation of the List
interface to minimize the effort required to implement this interface
backed by a "sequential access" data store (such as a linked list).
This class provides a skeletal implementation of the Set
interface to minimize the effort required to implement this
interface.
Resizable-array implementation of the
Deque interface.
Resizable-array implementation of the List interface.
This class contains various methods for manipulating arrays (such as
sorting and searching).
This class consists exclusively of static methods for obtaining
encoders and decoders for the Base64 encoding scheme.
This class implements a decoder for decoding byte data using the
Base64 encoding scheme as specified in RFC 4648 and RFC 2045.
This class implements an encoder for encoding byte data using
the Base64 encoding scheme as specified in RFC 4648 and RFC 2045.
This class implements a vector of bits that grows as needed.
The
Calendar class is an abstract class that provides methods
for converting between a specific instant in time and a set of
calendar fields such as
YEAR,
MONTH,
DAY_OF_MONTH,
HOUR, and so on, and for
manipulating the calendar fields, such as getting the date of the next
week.
Calendar.Builder is used for creating a Calendar from
various date-time parameters.
The root interface in the collection hierarchy.
This class consists exclusively of static methods that operate on or return
collections.
A comparison function, which imposes a total ordering on
some collection of objects.
This exception may be thrown by methods that have detected concurrent
modification of an object when such modification is not permissible.
The class Date represents a specific instant
in time, with millisecond precision.
A linear collection that supports element insertion and removal at
both ends.
The Dictionary class is the abstract parent of any
class, such as Hashtable, which maps keys to values.
A state object for collecting statistics such as count, min, max, sum, and
average.
Unchecked exception thrown when duplicate flags are provided in the format
specifier.
Thrown by methods in the Stack class to indicate
that the stack is empty.
An object that implements the Enumeration interface generates a
series of elements, one at a time.
A specialized
Map implementation for use with enum type keys.
A specialized
Set implementation for use with enum types.
A tagging interface that all event listener interfaces must extend.
An abstract wrapper class for an EventListener class
which associates a set of additional parameters with the listener.
The root class from which all event state objects shall be derived.
Unchecked exception thrown when a conversion and flag are incompatible.
The
Formattable interface must be implemented by any class that
needs to perform custom formatting using the
's' conversion
specifier of
Formatter.
An interpreter for printf-style format strings.
Enum for BigDecimal formatting.
Unchecked exception thrown when the formatter has been closed.
GregorianCalendar is a concrete subclass of
Calendar and provides the standard calendar system
used by most of the world.
Hash table based implementation of the Map interface.
This class implements the Set interface, backed by a hash table
(actually a HashMap instance).
This class implements a hash table, which maps keys to values.
HexFormat converts between bytes and chars and hex-encoded strings which may include
additional formatting markup such as prefixes, suffixes, and delimiters.
This class implements the Map interface with a hash table, using
reference-equality in place of object-equality when comparing keys (and
values).
Unchecked exception thrown when the argument corresponding to the format
specifier is of an incompatible type.
Unchecked exception thrown when a format string contains an illegal syntax
or a format specifier that is incompatible with the given arguments.
Unchecked exception thrown when an illegal combination flags is given.
Unchecked exception thrown when the precision is a negative value other than
-1, the conversion does not support a precision, or the value is
otherwise unsupported.
Unchecked exception thrown when the format width is a negative value other
than -1 or is otherwise unsupported.
Thrown by methods in
Locale and
Locale.Builder to
indicate that an argument is not a well-formed BCP 47 tag.
Thrown by a Scanner to indicate that the token
retrieved does not match the pattern for the expected type, or
that the token is out of range for the expected type.
A state object for collecting statistics such as count, min, max, sum, and
average.
Thrown to indicate that an operation could not complete because
the input did not conform to the appropriate XML document type
for a collection of properties, as per the
Properties
specification.
An iterator over a collection.
Hash table and linked list implementation of the Map interface,
with well-defined encounter order.
Hash table and linked list implementation of the Set interface,
with well-defined encounter order.
Doubly-linked list implementation of the List and Deque
interfaces.
An ordered collection, where the user has precise control over where in the
list each element is inserted.
An iterator for lists that allows the programmer
to traverse the list in either direction, modify
the list during iteration, and obtain the iterator's
current position in the list.
ListResourceBundle is an abstract subclass of
ResourceBundle that manages resources for a locale
in a convenient and easy to use list.
A Locale represents a specific geographical, political,
or cultural region.
Builder is used to build instances of Locale
from values configured by the setters.
Enum for locale categories.
This enum provides constants to select a filtering mode for locale
matching.
Enum for specifying the type defined in ISO 3166.
A state object for collecting statistics such as count, min, max, sum, and
average.
An object that maps keys to values.
A map entry (key-value pair).
Unchecked exception thrown when there is a format specifier which does not
have a corresponding argument or if an argument index refers to an argument
that does not exist.
Unchecked exception thrown when the format width is required.
Signals that a resource is missing.
A
SortedMap extended with navigation methods returning the
closest matches for given search targets.
A
SortedSet extended with navigation methods reporting
closest matches for given search targets.
Thrown by various accessor methods to indicate that the element being requested
does not exist.
This class consists of static utility methods for operating
on objects, or checking certain conditions before operation.
Deprecated.
This class and the
Observer interface have been deprecated.
Deprecated.
This interface has been deprecated.
A container object which may or may not contain a non-null value.
A container object which may or may not contain a double value.
A container object which may or may not contain an int value.
A container object which may or may not contain a long value.
A base type for primitive specializations of Iterator.
An Iterator specialized for double values.
An Iterator specialized for int values.
An Iterator specialized for long values.
An unbounded priority
queue based on a priority heap.
The Properties class represents a persistent set of
properties.
Deprecated, for removal: This API element is subject to removal in a future version.
This permission cannot be used for controlling access to resources
as the Security Manager is no longer supported.
PropertyResourceBundle is a concrete subclass of
ResourceBundle that manages resources for a locale
using a set of static strings from a property file.
A collection designed for holding elements prior to processing.
An instance of this class is used to generate a stream of
pseudorandom numbers; its period is only 248.
Marker interface used by List implementations to indicate that
they support fast (generally constant time) random access.
Resource bundles contain locale-specific objects.
ResourceBundle.Control defines a set of callback methods
that are invoked by the
ResourceBundle.getBundle factory
methods during the bundle loading process.
A simple text scanner which can parse primitive types and strings using
regular expressions.
A collection that has a well-defined encounter order, that supports operations at both ends,
and that is reversible.
A Map that has a well-defined encounter order, that supports operations at both ends, and
that is reversible.
Error thrown when something goes wrong while locating, loading, or
instantiating a service provider.
A facility to load implementations of a service.
Represents a service provider located by ServiceLoader.
A collection that contains no duplicate elements.
SimpleTimeZone is a concrete subclass of TimeZone
that represents a time zone for use with a Gregorian calendar.
A
Map that further provides a
total ordering on its keys.
A
Set that further provides a
total ordering on its elements.
An object for traversing and partitioning elements of a source.
A Spliterator specialized for double values.
A Spliterator specialized for int values.
A Spliterator specialized for long values.
A Spliterator specialized for primitive values.
An abstract Spliterator.OfDouble that implements
trySplit to permit limited parallelism.
An abstract Spliterator.OfInt that implements trySplit to
permit limited parallelism.
An abstract Spliterator.OfLong that implements trySplit
to permit limited parallelism.
An abstract Spliterator that implements trySplit to
permit limited parallelism.
A generator of uniform pseudorandom values (with period 264)
applicable for use in (among other contexts) isolated parallel
computations that may generate subtasks.
The Stack class represents a last-in-first-out
(LIFO) stack of objects.
StringJoiner is used to construct a sequence of characters separated
by a delimiter and optionally starting with a supplied prefix
and ending with a supplied suffix.
The string tokenizer class allows an application to break a
string into tokens.
A facility for threads to schedule tasks for future execution in a
background thread.
A task that can be scheduled for one-time or repeated execution by a
Timer.
TimeZone represents a time zone offset, and also figures out daylight
savings.
The TooManyListenersException Exception is used as part of
the Java Event model to annotate and implement a unicast special case of
a multicast Event Source.
Unchecked exception thrown when an unknown conversion is given.
Unchecked exception thrown when an unknown flag is given.
A class that represents an immutable universally unique identifier (UUID).
The Vector class implements a growable array of
objects.
Hash table based implementation of the Map interface, with
weak keys.