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Package java.util

Added Classes and Interfaces
AbstractQueue This class provides skeletal implementations of some Queue operations.
DuplicateFormatFlagsException Unchecked exception thrown when duplicate flags are provided in the format specifier.
EnumMap A specialized Map implementation for use with enum type keys.
EnumSet A specialized Set implementation for use with enum types.
FormatFlagsConversionMismatchException Unchecked exception thrown when a conversion and flag are incompatible.
Formattable The Formattable interface must be implemented by any class that needs to perform custom formatting using the 's' conversion specifier of java.util.Formatter.
Formatter An interpreter for printf-style format strings.
FormatterClosedException Unchecked exception thrown when the formatter has been closed.
IllegalFormatCodePointException Unchecked exception thrown when a character with an invalid Unicode code point as defined by Character.isValidCodePoint is passed to the Formatter.
IllegalFormatConversionException Unchecked exception thrown when the argument corresponding to the format specifier is of an incompatible type.
IllegalFormatException Unchecked exception thrown when a format string contains an illegal syntax or a format specifier that is incompatible with the given arguments.
IllegalFormatFlagsException Unchecked exception thrown when an illegal combination flags is given.
IllegalFormatPrecisionException Unchecked exception thrown when the precision is negative or the conversion does not support a precision.
IllegalFormatWidthException Unchecked exception thrown when the format width is negative.
InputMismatchException 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.
InvalidPropertiesFormatException 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.
MissingFormatArgumentException 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.
MissingFormatWidthException Unchecked exception thrown when the format width is required.
PriorityQueue An unbounded priority Queue queue based on a priority heap.
Queue A collection designed for holding elements prior to processing.
Scanner A simple text scanner which can parse primitive types and strings using regular expressions.
UUID A class that represents a universally unique identifier (UUID).
UnknownFormatConversionException Unchecked exception thrown when an unknown conversion is given.
UnknownFormatFlagsException Unchecked exception thrown when an unknown flag is given.

Changed Classes and Interfaces
ArrayList Resizable-array implementation of the List interface.
Arrays This class contains various methods for manipulating arrays (such as sorting and searching).
Calendar 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.
Collection The root interface in the collection hierarchy.
Collections This class consists exclusively of static methods that operate on or return collections.
GregorianCalendar GregorianCalendar is a concrete subclass of Calendar and provides the standard calendar system used by most of the world.

Hash table and linked list implementation of the Map interface, with predictable iteration order.

LinkedList Linked list implementation of the List interface.
Properties The Properties class represents a persistent set of properties.
Timer A facility for threads to schedule tasks for future execution in a background thread.