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U

UID(). Constructor for class java.rmi.server.UID
Create a pure identifier that is unique with respect to the host on which it is generated.
UID(short). Constructor for class java.rmi.server.UID
Create a "well-known" ID.
UK. Static variable in class java.util.Locale
Useful constant for country.
UNASSIGNED. Static variable in class java.lang.Character
unbind(String). Static method in class java.rmi.Naming
Unbind the name.
unbind(String). Method in interface java.rmi.registry.Registry
Unbind the name.
uncaughtException(Thread, Throwable). Method in class java.lang.ThreadGroup
Called by the Java Virtual Machine when a thread in this thread group stops because of an uncaught exception.
UNDECIMBER. Static variable in class java.util.Calendar
Useful constant for month.
UndefinedProperty. Static variable in class java.awt.Image
The UndefinedProperty object should be returned whenever a property which was not defined for a particular image is fetched.
UnexpectedException(String). Constructor for class java.rmi.UnexpectedException
Create a new UnexpectedException with a description.
UnexpectedException(String, Exception). Constructor for class java.rmi.UnexpectedException
Create a new UnexpectedException with a description, and detail exception.
UnicastRemoteObject(). Constructor for class java.rmi.server.UnicastRemoteObject
Create and export a new UnicastRemoteObject object using an anonymous port.
UNINITIALIZED. Static variable in class java.security.Signature
Possible state value, signifying that this signature object has not yet been initialized.
union(Rectangle). Method in class java.awt.Rectangle
Computes the union of this rectangle with the specified rectangle.
UNIT_DECREMENT. Static variable in class java.awt.event.AdjustmentEvent
The unit decrement adjustment type.
UNIT_INCREMENT. Static variable in class java.awt.event.AdjustmentEvent
The unit increment adjustment type.
UnknownError(). Constructor for class java.lang.UnknownError
Constructs an UnknownError with no detail message.
UnknownError(String). Constructor for class java.lang.UnknownError
Constructs an UnknownError with the specified detail message.
UnknownHostException(). Constructor for class java.net.UnknownHostException
Constructs a new UnknownHostException with no detail message.
UnknownHostException(String). Constructor for class java.net.UnknownHostException
Constructs a new UnknownHostException with the specified detail message.
UnknownHostException(String). Constructor for class java.rmi.UnknownHostException
Create a new UnknownHostException with a description.
UnknownHostException(String, Exception). Constructor for class java.rmi.UnknownHostException
Create a new UnknownHostException with a description and detail exception.
UnknownServiceException(). Constructor for class java.net.UnknownServiceException
Constructs a new UnknownServiceException with no detail message.
UnknownServiceException(String). Constructor for class java.net.UnknownServiceException
Constructs a new UnknownServiceException with the specified detail message.
UnmarshalException(String). Constructor for class java.rmi.UnmarshalException
Create a new marshal exception with a descriptive string.
UnmarshalException(String, Exception). Constructor for class java.rmi.UnmarshalException
Create a new marshal exception with a descriptive string and an exception.
unread(byte[]). Method in class java.io.PushbackInputStream
Pushes back an array of bytes by copying it to the front of the pushback buffer.
unread(byte[], int, int). Method in class java.io.PushbackInputStream
Pushes back a portion of an array of bytes by copying it to the front of the pushback buffer.
unread(char[]). Method in class java.io.PushbackReader
Push back an array of characters by copying it to the front of the pushback buffer.
unread(char[], int, int). Method in class java.io.PushbackReader
Push back a portion of an array of characters by copying it to the front of the pushback buffer.
unread(int). Method in class java.io.PushbackInputStream
Pushes back a byte by copying it to the front of the pushback buffer.
unread(int). Method in class java.io.PushbackReader
Push back a single character.
unreferenced(). Method in interface java.rmi.server.Unreferenced
Called when there are no current references to this remote object.
UnsatisfiedLinkError(). Constructor for class java.lang.UnsatisfiedLinkError
Constructs an UnsatisfiedLinkError with no detail message.
UnsatisfiedLinkError(String). Constructor for class java.lang.UnsatisfiedLinkError
Constructs an UnsatisfiedLinkError with the specified detail message.
UnsupportedEncodingException(). Constructor for class java.io.UnsupportedEncodingException
no detailed message
UnsupportedEncodingException(String). Constructor for class java.io.UnsupportedEncodingException
detailed message
UnsupportedFlavorException(DataFlavor). Constructor for class java.awt.datatransfer.UnsupportedFlavorException
Constructs an UnsupportedFlavorException.
UP. Static variable in class java.awt.Event
The Up Arrow key, a non-ASCII action key.
UPDATE. Static variable in class java.awt.event.PaintEvent
The update event type.
update(byte). Method in class java.security.MessageDigest
Updates the digest using the specified byte.
update(byte). Method in class java.security.Signature
Updates the data to be signed or verified by a byte.
update(byte[]). Method in class java.util.zip.Adler32
Updates checksum with specified array of bytes.
update(byte[]). Method in class java.util.zip.CRC32
Updates CRC-32 with specified array of bytes.
update(byte[]). Method in class java.security.MessageDigest
Updates the digest using the specified array of bytes.
update(byte[]). Method in class java.security.Signature
Updates the data to be signed or verified, using the specified array of bytes.
update(byte[], int, int). Method in class java.util.zip.Adler32
Updates checksum with specified array of bytes.
update(byte[], int, int). Method in interface java.util.zip.Checksum
Updates the current checksum with the specified array of bytes.
update(byte[], int, int). Method in class java.util.zip.CRC32
Updates CRC-32 with specified array of bytes.
update(byte[], int, int). Method in class java.security.MessageDigest
Updates the digest using the specified array of bytes, starting at the specified offset.
update(byte[], int, int). Method in class java.security.Signature
Updates the data to be signed or verified, using the specified array of bytes, starting at the specified offset.
update(Graphics). Method in class java.awt.Component
Updates this component.
update(Graphics). Method in class java.awt.Container
Updates the container.
update(int). Method in class java.util.zip.Adler32
Updates checksum with specified byte.
update(int). Method in interface java.util.zip.Checksum
Updates the current checksum with the specified byte.
update(int). Method in class java.util.zip.CRC32
Updates CRC-32 with specified byte.
update(Observable, Object). Method in interface java.util.Observer
This method is called whenever the observed object is changed.
UPPERCASE_LETTER. Static variable in class java.lang.Character
url. Variable in class java.net.URLConnection
The URL represents the remote object on the World Wide Web to which this connection is opened.
URL(String). Constructor for class java.net.URL
Creates a URL object from the String representation.
URL(String, String, int, String). Constructor for class java.net.URL
Creates a URL object from the specified protocol, host, port number, and file.
URL(String, String, String). Constructor for class java.net.URL
Creates an absolute URL from the specified protocol name, host name, and file name.
URL(URL, String). Constructor for class java.net.URL
Creates a URL by parsing the specification spec within a specified context.
URLConnection(URL). Constructor for class java.net.URLConnection
Constructs a URL connection to the specified URL.
URLStreamHandler(). Constructor for class java.net.URLStreamHandler
US. Static variable in class java.util.Locale
Useful constant for country.
useCaches. Variable in class java.net.URLConnection
If true, the protocol is allowed to use caching whenever it can.
useDaylightTime(). Method in class java.util.SimpleTimeZone
Overrides TimeZone Queries if this time zone uses Daylight Savings Time.
useDaylightTime(). Method in class java.util.TimeZone
Queries if this time zone uses Daylight Savings Time.
usesLocalFilePerTable(). Method in interface java.sql.DatabaseMetaData
Does the database use a file for each table?
usesLocalFiles(). Method in interface java.sql.DatabaseMetaData
Does the database store tables in a local file?
usesShiftModifier(). Method in class java.awt.MenuShortcut
Return whether this MenuShortcut must be invoked using the SHIFT key.
usingProxy(). Method in class java.net.HttpURLConnection
Indicates if the connection is going through a proxy.
UTC(int, int, int, int, int, int). Static method in class java.util.Date
Determines the date and time based on the arguments.
UTFDataFormatException(). Constructor for class java.io.UTFDataFormatException
Constructs a UTFDataFormatException with no detail message.
UTFDataFormatException(String). Constructor for class java.io.UTFDataFormatException
Constructs a UTFDataFormatException with the specified detail message.

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