java.nio

Class IntBuffer

public abstract class IntBuffer extends Buffer implements Comparable<IntBuffer>

Since: 1.4

Method Summary
static IntBuffer	allocate(int capacity) Allocates a new `IntBuffer` object with a given capacity.
int[]	array() Returns the `int` array that backs this buffer.
int	arrayOffset() Returns the offset within this buffer's backing array of the first element.
abstract IntBuffer	asReadOnlyBuffer() Creates a new read-only `IntBuffer` that shares this buffer's content.
abstract IntBuffer	compact() Compacts this buffer.
int	compareTo(IntBuffer other) Compares two `IntBuffer` objects.
abstract IntBuffer	duplicate() Creates a new `IntBuffer` that shares this buffer's content.
boolean	equals(Object obj) Checks if this buffer is equal to obj.
IntBuffer	get(int[] dst, int offset, int length) This method transfers `int`s from this buffer into the given destination array.
IntBuffer	get(int[] dst) This method transfers `int`s from this buffer into the given destination array.
abstract int	get() Reads the `int` at this buffer's current position, and then increments the position.
abstract int	get(int index) Absolute get method.
boolean	hasArray() Tells whether ot not this buffer is backed by an accessible `int` array.
int	hashCode() Calculates a hash code for this buffer.
abstract boolean	isDirect() Tells wether or not this buffer is direct.
abstract ByteOrder	order() Returns the byte order of this buffer.
IntBuffer	put(IntBuffer src) Writes the content of the the `IntBUFFER` src into the buffer.
IntBuffer	put(int[] src, int offset, int length) Writes the content of the the `int array` src into the buffer.
IntBuffer	put(int[] src) Writes the content of the the `int array` src into the buffer.
abstract IntBuffer	put(int b) Writes the `int` at this buffer's current position, and then increments the position.
abstract IntBuffer	put(int index, int b) Absolute put method.
abstract IntBuffer	slice() Creates a new `IntBuffer` whose content is a shared subsequence of this buffer's content.
static IntBuffer	wrap(int[] array, int offset, int length) Wraps a `int` array into a `IntBuffer` object.
static IntBuffer	wrap(int[] array) Wraps a `int` array into a `IntBuffer` object.

Method Detail

allocate

public static IntBuffer allocate(int capacity)

Allocates a new IntBuffer object with a given capacity.

array

public final int[] array()

Returns the int array that backs this buffer.

Throws: ReadOnlyBufferException If this buffer is read-only. UnsupportedOperationException If this buffer is not backed by an accessible array.

arrayOffset

public final int arrayOffset()

Returns the offset within this buffer's backing array of the first element.

Throws: ReadOnlyBufferException If this buffer is read-only. UnsupportedOperationException If this buffer is not backed by an accessible array.

asReadOnlyBuffer

public abstract IntBuffer asReadOnlyBuffer()

Creates a new read-only IntBuffer that shares this buffer's content.

compact

public abstract IntBuffer compact()

Compacts this buffer.

Throws: ReadOnlyBufferException If this buffer is read-only.

compareTo

public int compareTo(IntBuffer other)

Compares two IntBuffer objects.

Throws: ClassCastException If obj is not an object derived from IntBuffer.

duplicate

public abstract IntBuffer duplicate()

Creates a new IntBuffer that shares this buffer's content.

equals

public boolean equals(Object obj)

Checks if this buffer is equal to obj.

get

public IntBuffer get(int[] dst, int offset, int length)

This method transfers ints from this buffer into the given destination array. Before the transfer, it checks if there are fewer than length ints remaining in this buffer.

Parameters: dst The destination array offset The offset within the array of the first int to be written; must be non-negative and no larger than dst.length. length The maximum number of bytes to be written to the given array; must be non-negative and no larger than dst.length - offset.

Throws: BufferUnderflowException If there are fewer than length ints remaining in this buffer. IndexOutOfBoundsException If the preconditions on the offset and length parameters do not hold.

get

public IntBuffer get(int[] dst)

This method transfers ints from this buffer into the given destination array.

Parameters: dst The byte array to write into.

Throws: BufferUnderflowException If there are fewer than dst.length ints remaining in this buffer.

get

public abstract int get()

Reads the int at this buffer's current position, and then increments the position.

Throws: BufferUnderflowException If there are no remaining ints in this buffer.

get

public abstract int get(int index)

Absolute get method.

Throws: IndexOutOfBoundsException If index is negative or not smaller than the buffer's limit.

hasArray

public final boolean hasArray()

Tells whether ot not this buffer is backed by an accessible int array.

hashCode

public int hashCode()

Calculates a hash code for this buffer. This is done with int arithmetic, where ** represents exponentiation, by this formula:

s[position()] + 31 + (s[position()+1] + 30)*31**1 + ... +
 (s[limit()-1]+30)*31**(limit()-1)

. Where s is the buffer data. Note that the hashcode is dependent on buffer content, and therefore is not useful if the buffer content may change.

Returns: the hash code

isDirect

public abstract boolean isDirect()

Tells wether or not this buffer is direct.

order

public abstract ByteOrder order()

Returns the byte order of this buffer.

put

public IntBuffer put(IntBuffer src)

Writes the content of the the IntBUFFER src into the buffer. Before the transfer, it checks if there is fewer than src.remaining() space remaining in this buffer.

Parameters: src The source data.

Throws: BufferOverflowException If there is insufficient space in this buffer for the remaining ints in the source buffer. IllegalArgumentException If the source buffer is this buffer. ReadOnlyBufferException If this buffer is read-only.

put

public IntBuffer put(int[] src, int offset, int length)

Writes the content of the the int array src into the buffer. Before the transfer, it checks if there is fewer than length space remaining in this buffer.

Parameters: src The array to copy into the buffer. offset The offset within the array of the first byte to be read; must be non-negative and no larger than src.length. length The number of bytes to be read from the given array; must be non-negative and no larger than src.length - offset.

Throws: BufferOverflowException If there is insufficient space in this buffer for the remaining ints in the source array. IndexOutOfBoundsException If the preconditions on the offset and length parameters do not hold ReadOnlyBufferException If this buffer is read-only.

put

public final IntBuffer put(int[] src)

Writes the content of the the int array src into the buffer.

Parameters: src The array to copy into the buffer.

Throws: BufferOverflowException If there is insufficient space in this buffer for the remaining ints in the source array. ReadOnlyBufferException If this buffer is read-only.

put

public abstract IntBuffer put(int b)

Writes the int at this buffer's current position, and then increments the position.

Throws: BufferOverflowException If there no remaining ints in this buffer. ReadOnlyBufferException If this buffer is read-only.

put

public abstract IntBuffer put(int index, int b)

Absolute put method.

Throws: IndexOutOfBoundsException If index is negative or not smaller than the buffer's limit. ReadOnlyBufferException If this buffer is read-only.

slice

public abstract IntBuffer slice()

Creates a new IntBuffer whose content is a shared subsequence of this buffer's content.

wrap

public static final IntBuffer wrap(int[] array, int offset, int length)

Wraps a int array into a IntBuffer object.

Throws: IndexOutOfBoundsException If the preconditions on the offset and length parameters do not hold

wrap

public static final IntBuffer wrap(int[] array)

Wraps a int array into a IntBuffer object.