Java R 开头所有类接口（JDK8）

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Java™ Platform
Standard Ed. 8

All Classes

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z _

R

RadialGradientPaint - Class in java.awt

The RadialGradientPaint class provides a way to fill a shape with a circular radial color gradient pattern.

RadialGradientPaint(float, float, float, float[], Color[]) - Constructor for class java.awt.RadialGradientPaint

Constructs a RadialGradientPaint with a default NO_CYCLE repeating method and SRGB color space, using the center as the focus point.

RadialGradientPaint(Point2D, float, float[], Color[]) - Constructor for class java.awt.RadialGradientPaint

Constructs a RadialGradientPaint with a default NO_CYCLE repeating method and SRGB color space, using the center as the focus point.

RadialGradientPaint(float, float, float, float[], Color[], MultipleGradientPaint.CycleMethod) - Constructor for class java.awt.RadialGradientPaint

Constructs a RadialGradientPaint with a default SRGB color space, using the center as the focus point.

RadialGradientPaint(Point2D, float, float[], Color[], MultipleGradientPaint.CycleMethod) - Constructor for class java.awt.RadialGradientPaint

Constructs a RadialGradientPaint with a default SRGB color space, using the center as the focus point.

RadialGradientPaint(float, float, float, float, float, float[], Color[], MultipleGradientPaint.CycleMethod) - Constructor for class java.awt.RadialGradientPaint

Constructs a RadialGradientPaint with a default SRGB color space.

RadialGradientPaint(Point2D, float, Point2D, float[], Color[], MultipleGradientPaint.CycleMethod) - Constructor for class java.awt.RadialGradientPaint

Constructs a RadialGradientPaint with a default SRGB color space.

RadialGradientPaint(Point2D, float, Point2D, float[], Color[], MultipleGradientPaint.CycleMethod, MultipleGradientPaint.ColorSpaceType, AffineTransform) - Constructor for class java.awt.RadialGradientPaint

Constructs a RadialGradientPaint.

RadialGradientPaint(Rectangle2D, float[], Color[], MultipleGradientPaint.CycleMethod) - Constructor for class java.awt.RadialGradientPaint

Constructs a RadialGradientPaint with a default SRGB color space.

RADIO_BUTTON - Static variable in class javax.accessibility.AccessibleRole

A specialized check box that will cause other radio buttons in the same group to become unchecked when this one is checked.

RADIO_BUTTON - Static variable in class javax.swing.plaf.synth.Region

RadioButton region.

RADIO_BUTTON_MENU_ITEM - Static variable in class javax.swing.plaf.synth.Region

RegionButtonMenuItem region.

RadioButtonBorder(Color, Color, Color, Color) - Constructor for class javax.swing.plaf.basic.BasicBorders.RadioButtonBorder

radix() - Method in class java.util.Scanner

Returns this scanner's default radix.

RAISED - Static variable in class javax.swing.border.BevelBorder

Raised bevel type.

RAISED - Static variable in class javax.swing.border.EtchedBorder

Raised etched type.

random() - Static method in class java.lang.Math

Returns a double value with a positive sign, greater than or equal to 0.0 and less than 1.0.

random() - Static method in class java.lang.StrictMath

Returns a double value with a positive sign, greater than or equal to 0.0 and less than 1.0.

Random - Class in java.util

An instance of this class is used to generate a stream of pseudorandom numbers.

Random() - Constructor for class java.util.Random

Creates a new random number generator.

Random(long) - Constructor for class java.util.Random

Creates a new random number generator using a single long seed.

RandomAccess - Interface in java.util

Marker interface used by List implementations to indicate that they support fast (generally constant time) random access.

RandomAccessFile - Class in java.io

Instances of this class support both reading and writing to a random access file.

RandomAccessFile(String, String) - Constructor for class java.io.RandomAccessFile

Creates a random access file stream to read from, and optionally to write to, a file with the specified name.

RandomAccessFile(File, String) - Constructor for class java.io.RandomAccessFile

Creates a random access file stream to read from, and optionally to write to, the file specified by the File argument.

RANDOMPIXELORDER - Static variable in interface java.awt.image.ImageConsumer

The pixels will be delivered in a random order.

randomUUID() - Static method in class java.util.UUID

Static factory to retrieve a type 4 (pseudo randomly generated) UUID.

RANGE - Static variable in class java.awt.JobAttributes.DefaultSelectionType

The DefaultSelectionType instance to use for specifying that a range of pages of the job should be printed.

range(ChronoField) - Method in interface java.time.chrono.Chronology