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java.lang.Objectjava.nio.Buffer
java.nio.IntBuffer
public abstract class IntBuffer
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. |
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. |
IntBuffer |
get(int[] dst)
This method transfers int s from this buffer into the given
destination array. |
IntBuffer |
get(int[] dst,
int offset,
int length)
This method transfers int s from this buffer into the given
destination array. |
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. |
abstract IntBuffer |
put(int b)
Writes the int at this buffer's current position,
and then increments the position. |
IntBuffer |
put(int[] src)
Writes the content of the the int array 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(IntBuffer src)
Writes the content of the the IntBUFFER src
into the buffer. |
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)
Wraps a int array into a IntBuffer
object. |
static IntBuffer |
wrap(int[] array,
int offset,
int length)
Wraps a int array into a IntBuffer
object. |
Methods inherited from class java.nio.Buffer |
---|
capacity, clear, flip, hasRemaining, isReadOnly, limit, limit, mark, position, position, remaining, reset, rewind |
Methods inherited from class java.lang.Object |
---|
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
---|
public static IntBuffer allocate(int capacity)
IntBuffer
object with a given capacity.
public static final IntBuffer wrap(int[] array, int offset, int length)
int
array into a IntBuffer
object.
IndexOutOfBoundsException
- If the preconditions on the offset
and length parameters do not holdpublic static final IntBuffer wrap(int[] array)
int
array into a IntBuffer
object.
public IntBuffer get(int[] dst, int offset, int length)
int
s from this buffer into the given
destination array. Before the transfer, it checks if there are fewer than
length int
s remaining in this buffer.
dst
- The destination arrayoffset
- 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.
BufferUnderflowException
- If there are fewer than length
int
s remaining in this buffer.
IndexOutOfBoundsException
- If the preconditions on the offset
and length parameters do not hold.public IntBuffer get(int[] dst)
int
s from this buffer into the given
destination array.
dst
- The byte array to write into.
BufferUnderflowException
- If there are fewer than dst.length
int
s remaining in this buffer.public IntBuffer put(IntBuffer src)
IntBUFFER
src
into the buffer. Before the transfer, it checks if there is fewer than
src.remaining()
space remaining in this buffer.
src
- The source data.
BufferOverflowException
- If there is insufficient space in this
buffer for the remaining int
s in the source buffer.
IllegalArgumentException
- If the source buffer is this buffer.
ReadOnlyBufferException
- If this buffer is read-only.public IntBuffer put(int[] src, int offset, int length)
int array
src
into the buffer. Before the transfer, it checks if there is fewer than
length space remaining in this buffer.
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.
BufferOverflowException
- If there is insufficient space in this
buffer for the remaining int
s in the source array.
IndexOutOfBoundsException
- If the preconditions on the offset
and length parameters do not hold
ReadOnlyBufferException
- If this buffer is read-only.public final IntBuffer put(int[] src)
int array
src
into the buffer.
src
- The array to copy into the buffer.
BufferOverflowException
- If there is insufficient space in this
buffer for the remaining int
s in the source array.
ReadOnlyBufferException
- If this buffer is read-only.public final boolean hasArray()
int
array.
public final int[] array()
int
array that backs this buffer.
ReadOnlyBufferException
- If this buffer is read-only.
UnsupportedOperationException
- If this buffer is not backed
by an accessible array.public final int arrayOffset()
ReadOnlyBufferException
- If this buffer is read-only.
UnsupportedOperationException
- If this buffer is not backed
by an accessible array.public int hashCode()
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.
hashCode
in class Object
Object.equals(Object)
,
System.identityHashCode(Object)
public boolean equals(Object obj)
equals
in class Object
obj
- the Object to compare to
Object.hashCode()
public int compareTo(IntBuffer other)
IntBuffer
objects.
compareTo
in interface Comparable<IntBuffer>
other
- the object to be compared
ClassCastException
- If obj is not an object derived from
IntBuffer
.public abstract ByteOrder order()
public abstract int get()
int
at this buffer's current position,
and then increments the position.
BufferUnderflowException
- If there are no remaining
int
s in this buffer.public abstract IntBuffer put(int b)
int
at this buffer's current position,
and then increments the position.
BufferOverflowException
- If there no remaining
int
s in this buffer.
ReadOnlyBufferException
- If this buffer is read-only.public abstract int get(int index)
IndexOutOfBoundsException
- If index is negative or not smaller
than the buffer's limit.public abstract IntBuffer put(int index, int b)
IndexOutOfBoundsException
- If index is negative or not smaller
than the buffer's limit.
ReadOnlyBufferException
- If this buffer is read-only.public abstract IntBuffer compact()
ReadOnlyBufferException
- If this buffer is read-only.public abstract boolean isDirect()
public abstract IntBuffer slice()
IntBuffer
whose content is a shared
subsequence of this buffer's content.
public abstract IntBuffer duplicate()
IntBuffer
that shares this buffer's
content.
public abstract IntBuffer asReadOnlyBuffer()
IntBuffer
that shares this
buffer's content.
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