- 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 - 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.
- read() - Method in class java.io.ByteArrayInputStream
-
Reads the next byte of data from this input stream.
- read(byte[], int, int) - Method in class java.io.ByteArrayInputStream
-
Reads up to len bytes of data into an array of bytes from this input stream.
- read(byte[]) - Method in class java.io.DataInputStream
-
Reads some number of bytes from the contained input stream and stores them into the buffer
array b.
- read(byte[], int, int) - Method in class java.io.DataInputStream
-
Reads up to len bytes of data from the contained input stream into an array of
bytes.
- read() - Method in class java.io.FilterInputStream
-
Reads the next byte of data from this input stream.
- read(byte[]) - Method in class java.io.FilterInputStream
-
Reads up to byte.length bytes of data from this input stream into an array of
bytes.
- read(byte[], int, int) - Method in class java.io.FilterInputStream
-
Reads up to len bytes of data from this input stream into an array of bytes.
- read() - Method in class java.io.InputStream
-
Reads the next byte of data from the input stream.
- read(byte[]) - Method in class java.io.InputStream
-
Reads some number of bytes from the input stream and stores them into the buffer array
b.
- read(byte[], int, int) - Method in class java.io.InputStream
-
Reads up to len bytes of data from the input stream into an array of bytes.
- read() - Method in class java.io.InputStreamReader
-
Reads a single character.
- read(char[], int, int) - Method in class java.io.InputStreamReader
-
Reads characters into a portion of an array.
- read() - Method in class java.io.Reader
-
Reads a single character.
- read(char[]) - Method in class java.io.Reader
-
Reads characters into an array.
- read(char[], int, int) - Method in class java.io.Reader
-
Reads characters into a portion of an array.
- Readable - Interface in java.lang
-
This interface is only defined for hierarchy compatibility.
- readBoolean() - Method in interface java.io.DataInput
-
Reads one input byte and returns true if that byte is nonzero,
false if that byte is zero.
- readBoolean() - Method in class java.io.DataInputStream
-
See the general contract of the readBoolean method of DataInput.
- readByte() - Method in interface java.io.DataInput
-
Reads and returns one input byte.
- readByte() - Method in class java.io.DataInputStream
-
See the general contract of the readByte method of DataInput.
- readChar() - Method in interface java.io.DataInput
-
Reads two input bytes and returns a char value.
- readChar() - Method in class java.io.DataInputStream
-
See the general contract of the readChar method of DataInput.
- readDouble() - Method in interface java.io.DataInput
-
Reads eight input bytes and returns a double value.
- readDouble() - Method in class java.io.DataInputStream
-
See the general contract of the readDouble method of DataInput.
- Reader - Class in java.io
-
Abstract class for reading character streams.
- Reader() - Constructor for class java.io.Reader
-
Creates a new character-stream reader whose critical sections will synchronize on the reader
itself.
- Reader(Object) - Constructor for class java.io.Reader
-
Creates a new character-stream reader whose critical sections will synchronize on the given
object.
- readFloat() - Method in interface java.io.DataInput
-
Reads four input bytes and returns a float value.
- readFloat() - Method in class java.io.DataInputStream
-
See the general contract of the readFloat method of DataInput.
- readFully(byte[]) - Method in interface java.io.DataInput
-
Reads some bytes from an input stream and stores them into the buffer array b.
- readFully(byte[], int, int) - Method in interface java.io.DataInput
-
Reads len bytes from an input stream.
- readFully(byte[]) - Method in class java.io.DataInputStream
-
See the general contract of the readFully method of DataInput.
- readFully(byte[], int, int) - Method in class java.io.DataInputStream
-
See the general contract of the readFully method of DataInput.
- readInt() - Method in interface java.io.DataInput
-
Reads four input bytes and returns an int value.
- readInt() - Method in class java.io.DataInputStream
-
See the general contract of the readInt method of DataInput.
- readLong() - Method in interface java.io.DataInput
-
Reads eight input bytes and returns a long value.
- readLong() - Method in class java.io.DataInputStream
-
See the general contract of the readLong method of DataInput.
- readShort() - Method in interface java.io.DataInput
-
Reads two input bytes and returns a short value.
- readShort() - Method in class java.io.DataInputStream
-
See the general contract of the readShort method of DataInput.
- readUnsignedByte() - Method in interface java.io.DataInput
-
Reads one input byte, zero-extends it to type int, and returns the result, which
is therefore in the range 0 through 255.
- readUnsignedByte() - Method in class java.io.DataInputStream
-
See the general contract of the readUnsignedByte method of
DataInput.
- readUnsignedShort() - Method in interface java.io.DataInput
-
Reads two input bytes and returns an int value in the range 0
through 65535.
- readUnsignedShort() - Method in class java.io.DataInputStream
-
See the general contract of the readUnsignedShort method of
DataInput.
- readUTF() - Method in interface java.io.DataInput
-
Reads in a string that has been encoded using a
modified UTF-8
format.
- readUTF(DataInput) - Static method in class java.io.DataInputStream
-
Reads from the stream
in a representation of a Unicode character string encoded
in
modified UTF-8 format; this string of
characters is then returned as a
String.
- readUTF() - Method in class java.io.DataInputStream
-
See the general contract of the readUTF method of DataInput.
- ready() - Method in class java.io.InputStreamReader
-
Tells whether this stream is ready to be read.
- ready() - Method in class java.io.Reader
-
Tells whether this stream is ready to be read.
- Reference<T> - Class in java.lang.ref
-
Abstract base class for reference objects.
- Reference() - Constructor for class java.lang.ref.Reference
-
- ReferenceQueue<T> - Class in java.lang.ref
-
Reference queues, to which registered reference objects are appended by the garbage collector
after the appropriate reachability changes are detected.
- ReferenceQueue() - Constructor for class java.lang.ref.ReferenceQueue
-
Constructs a new reference-object queue.
- ReflectiveOperationException - Exception in java.lang
-
Common superclass of exceptions thrown by reflective operations in core reflection.
- ReflectiveOperationException() - Constructor for exception java.lang.ReflectiveOperationException
-
Constructs a new exception with null as its detail message.
- ReflectiveOperationException(String) - Constructor for exception java.lang.ReflectiveOperationException
-
Constructs a new exception with the specified detail message.
- ReflectiveOperationException(String, Throwable) - Constructor for exception java.lang.ReflectiveOperationException
-
Constructs a new exception with the specified detail message and cause.
- ReflectiveOperationException(Throwable) - Constructor for exception java.lang.ReflectiveOperationException
-
Constructs a new exception with the specified cause and a detail message of
(cause==null ? null : cause.toString()) (which typically contains the class and
detail message of cause).
- regionMatches(boolean, int, String, int, int) - Method in class java.lang.String
-
Tests if two string regions are equal.
- regionMatches(int, String, int, int) - Method in class java.lang.String
-
Tests if two string regions are equal.
- rehash() - Method in class java.util.Hashtable
-
Increases the capacity of and internally reorganizes this hashtable, in order to accommodate
and access its entries more efficiently.
- remove() - Method in class java.lang.ref.ReferenceQueue
-
Removes the next reference object in this queue, blocking until one becomes available.
- remove(long) - Method in class java.lang.ref.ReferenceQueue
-
Removes the next reference object in this queue, blocking until either one becomes available
or the given timeout period expires.
- remove(Object) - Method in class java.util.AbstractCollection
-
Removes a single instance of the specified element from this collection, if it is present
(optional operation).
- remove(int) - Method in class java.util.AbstractList
-
Removes the element at the specified position in this list (optional operation).
- remove(Object) - Method in class java.util.AbstractMap
-
Removes the mapping for a key from this map if it is present (optional operation).
- remove(int) - Method in class java.util.ArrayList
-
Removes the element at the specified position in this list.
- remove(Object) - Method in class java.util.ArrayList
-
Removes the first occurrence of the specified element from this list, if it is present.
- remove(Object) - Method in interface java.util.Collection
-
Removes a single instance of the specified element from this collection, if it is present
(optional operation).
- remove(Object) - Method in class java.util.Dictionary
-
Removes the key (and its corresponding value) from this dictionary.
- remove(Object) - Method in class java.util.HashMap
-
Removes the mapping for the specified key from this map if present.
- remove(Object) - Method in class java.util.Hashtable
-
Removes the key (and its corresponding value) from this hashtable.
- remove() - Method in interface java.util.Iterator
-
Removes from the underlying collection the last element returned by this iterator (optional
operation).
- remove(int) - Method in interface java.util.List
-
Removes the element at the specified position in this list (optional operation).
- remove(Object) - Method in interface java.util.List
-
Removes the first occurrence of the specified element from this list, if it is present
(optional operation).
- remove() - Method in interface java.util.ListIterator
-
- remove(Object) - Method in interface java.util.Map
-
Removes the mapping for a key from this map if it is present (optional operation).
- remove(Object) - Method in interface java.util.Set
-
Removes the specified element from this set if it is present (optional operation).
- remove(int) - Method in class java.util.Vector
-
Removes the element at the specified position in this Vector.
- remove(Object) - Method in class java.util.Vector
-
Removes the first occurrence of the specified element in this Vector If the Vector does not
contain the element, it is unchanged.
- remove(Object) - Method in class java.util.WeakHashMap
-
Removes the mapping for a key from this weak hash map if it is present.
- removeAll(Collection<?>) - Method in class java.util.AbstractCollection
-
Removes all of this collection's elements that are also contained in the specified collection
(optional operation).
- removeAll(Collection<?>) - Method in class java.util.AbstractSet
-
Removes from this set all of its elements that are contained in the specified collection
(optional operation).
- removeAll(Collection<?>) - Method in class java.util.ArrayList
-
Removes from this list all of its elements that are contained in the specified collection.
- removeAll(Collection<?>) - Method in interface java.util.Collection
-
Removes all of this collection's elements that are also contained in the specified collection
(optional operation).
- removeAll(Collection<?>) - Method in interface java.util.List
-
Removes from this list all of its elements that are contained in the specified collection
(optional operation).
- removeAll(Collection<?>) - Method in interface java.util.Set
-
Removes from this set all of its elements that are contained in the specified collection
(optional operation).
- removeAll(Collection<?>) - Method in class java.util.Vector
-
Removes from this Vector all of its elements that are contained in the specified Collection.
- removeAllElements() - Method in class java.util.Vector
-
Removes all components from this vector and sets its size to zero.
- removeElement(Object) - Method in class java.util.Vector
-
Removes the first (lowest-indexed) occurrence of the argument from this vector.
- removeElementAt(int) - Method in class java.util.Vector
-
Deletes the component at the specified index.
- removeRange(int, int) - Method in class java.util.AbstractList
-
Removes from this list all of the elements whose index is between fromIndex,
inclusive, and toIndex, exclusive.
- removeRange(int, int) - Method in class java.util.ArrayList
-
Removes from this list all of the elements whose index is between fromIndex,
inclusive, and toIndex, exclusive.
- removeRange(int, int) - Method in class java.util.Vector
-
Removes from this list all of the elements whose index is between fromIndex,
inclusive, and toIndex, exclusive.
- replace(char, char) - Method in class java.lang.String
-
Returns a new string resulting from replacing all occurrences of oldChar in this
string with newChar.
- replace(CharSequence, CharSequence) - Method in class java.lang.String
-
Replaces each substring of this string that matches the literal target sequence with the
specified literal replacement sequence.
- replace(int, int, String) - Method in class java.lang.StringBuffer
-
Replaces the characters in a substring of this sequence with characters in the specified
String.
- replace(int, int, String) - Method in class java.lang.StringBuilder
-
Replaces the characters in a substring of this sequence with characters in the specified
String.
- reset() - Method in class java.io.ByteArrayInputStream
-
Resets the buffer to the marked position.
- reset() - Method in class java.io.ByteArrayOutputStream
-
Resets the count field of this byte array output stream to zero, so that all
currently accumulated output in the output stream is discarded.
- reset() - Method in class java.io.FilterInputStream
-
Repositions this stream to the position at the time the mark method was last
called on this input stream.
- reset() - Method in class java.io.InputStream
-
Repositions this stream to the position at the time the mark method was last
called on this input stream.
- reset() - Method in class java.io.Reader
-
Resets the stream.
- retainAll(Collection<?>) - Method in class java.util.AbstractCollection
-
Retains only the elements in this collection that are contained in the specified collection
(optional operation).
- retainAll(Collection<?>) - Method in class java.util.ArrayList
-
Retains only the elements in this list that are contained in the specified collection.
- retainAll(Collection<?>) - Method in interface java.util.Collection
-
Retains only the elements in this collection that are contained in the specified collection
(optional operation).
- retainAll(Collection<?>) - Method in interface java.util.List
-
Retains only the elements in this list that are contained in the specified collection
(optional operation).
- retainAll(Collection<?>) - Method in interface java.util.Set
-
Retains only the elements in this set that are contained in the specified collection
(optional operation).
- retainAll(Collection<?>) - Method in class java.util.Vector
-
Retains only the elements in this Vector that are contained in the specified Collection.
- Retention - Annotation Type in java.lang.annotation
-
Indicates how long annotations with the annotated type are to be retained.
- RetentionPolicy - Enum in java.lang.annotation
-
Annotation retention policy.
- reverse() - Method in class java.lang.StringBuffer
-
Causes this character sequence to be replaced by the reverse of the sequence.
- reverse() - Method in class java.lang.StringBuilder
-
Causes this character sequence to be replaced by the reverse of the sequence.
- rint(double) - Static method in class java.lang.Math
-
Returns the double value that is closest in value to the argument and is equal to a
mathematical integer.
- rotateLeft(int, int) - Static method in class java.lang.Integer
-
Returns the value obtained by rotating the two's complement binary representation of the
specified int value left by the specified number of bits.
- rotateLeft(long, int) - Static method in class java.lang.Long
-
Returns the value obtained by rotating the two's complement binary representation of the
specified long value left by the specified number of bits.
- rotateRight(int, int) - Static method in class java.lang.Integer
-
Returns the value obtained by rotating the two's complement binary representation of the
specified int value right by the specified number of bits.
- rotateRight(long, int) - Static method in class java.lang.Long
-
Returns the value obtained by rotating the two's complement binary representation of the
specified long value right by the specified number of bits.
- round(double) - Static method in class java.lang.Math
-
Returns the closest long to the argument, with ties rounding up.
- round(float) - Static method in class java.lang.Math
-
Returns the closest int to the argument, with ties rounding up.
- run() - Method in interface java.lang.Runnable
-
When an object implementing interface Runnable is used to create a thread,
starting the thread causes the object's run method to be called in that
separately executing thread.
- run() - Method in class java.lang.Thread
-
If this thread was constructed using a separate Runnable run object, then that Runnable
object's run method is called; otherwise, this method does nothing and returns.
- run() - Method in class java.util.TimerTask
-
The action to be performed by this timer task.
- Runnable - Interface in java.lang
-
The Runnable interface should be implemented by any class whose instances are
intended to be executed by a thread.
- Runtime - Class in java.lang
-
Every Java application has a single instance of class Runtime that allows the
application to interface with the environment in which the application is running.
- RuntimeException - Exception in java.lang
-
RuntimeException is the superclass of those exceptions that can be thrown during the
normal operation of the Java Virtual Machine.
- RuntimeException() - Constructor for exception java.lang.RuntimeException
-
Constructs a new runtime exception with null as its detail message.
- RuntimeException(String) - Constructor for exception java.lang.RuntimeException
-
Constructs a new runtime exception with the specified detail message.
- RuntimeException(String, Throwable) - Constructor for exception java.lang.RuntimeException
-
Constructs a new runtime exception with the specified detail message and cause.
- RuntimeException(Throwable) - Constructor for exception java.lang.RuntimeException
-
Constructs a new runtime exception with the specified cause and a detail message of
(cause==null ? null : cause.toString()) (which typically contains the class and
detail message of cause).
- RuntimePermission - Class in java.lang
-
This class is for runtime permissions.
- RuntimePermission(String) - Constructor for class java.lang.RuntimePermission
-
Creates a new RuntimePermission with the specified name.
- RuntimePermission(String, String) - Constructor for class java.lang.RuntimePermission
-
Creates a new RuntimePermission object with the specified name.