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UNDEFINED - Static variable in class java.awt.BufferCapabilities.FlipContents

When flip contents are UNDEFINED, the contents of the back buffer are undefined after flipping.

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.

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.

UNKNOWN - Static variable in class java.awt.ComponentOrientation

Indicates that a component's orientation has not been set.

UNNECESSARY - Static variable in class java.awt.GraphicsConfigTemplate

Value used for "Enum" (Integer) type.

UP - Static variable in class java.awt.Event

The Up Arrow key, a non-ASCII action key.

UP_CYCLE_TRAVERSAL_KEYS - Static variable in class java.awt.KeyboardFocusManager

The identifier for the Up Cycle focus traversal keys.

update(Graphics) - Method in class java.awt.Canvas

Updates this canvas.

update(Graphics) - Method in class java.awt.Component

Updates this component.

update(Graphics) - Method in class java.awt.Container

Updates the container.

UPDATE - Static variable in class java.awt.event.PaintEvent

The update event type.

update() - Method in class java.awt.SplashScreen

Updates the splash window with current contents of the overlay image.

upFocusCycle(Component) - Method in class java.awt.DefaultKeyboardFocusManager

Moves the focus up one focus traversal cycle.

upFocusCycle(Component) - Method in class java.awt.KeyboardFocusManager

Moves the focus up one focus traversal cycle.

upFocusCycle() - Method in class java.awt.KeyboardFocusManager

Moves the focus up one focus traversal cycle from the current focus owner.

usesShiftModifier() - Method in class java.awt.MenuShortcut

Returns whether this MenuShortcut must be invoked using the SHIFT key.