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java.lang.Objectjava.nio.Buffer
java.nio.FloatBuffer
public abstract class FloatBuffer
Method Summary | |
---|---|
static FloatBuffer |
allocate(int capacity)
Allocates a new FloatBuffer object with a given capacity. |
float[] |
array()
Returns the float array that backs this buffer. |
int |
arrayOffset()
Returns the offset within this buffer's backing array of the first element. |
abstract FloatBuffer |
asReadOnlyBuffer()
Creates a new read-only FloatBuffer that shares this
buffer's content. |
abstract FloatBuffer |
compact()
Compacts this buffer. |
int |
compareTo(FloatBuffer other)
Compares two FloatBuffer objects. |
abstract FloatBuffer |
duplicate()
Creates a new FloatBuffer that shares this buffer's
content. |
boolean |
equals(Object obj)
Checks if this buffer is equal to obj. |
abstract float |
get()
Reads the float at this buffer's current position,
and then increments the position. |
FloatBuffer |
get(float[] dst)
This method transfers float s from this buffer into the given
destination array. |
FloatBuffer |
get(float[] dst,
int offset,
int length)
This method transfers float s from this buffer into the given
destination array. |
abstract float |
get(int index)
Absolute get method. |
boolean |
hasArray()
Tells whether ot not this buffer is backed by an accessible float 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 FloatBuffer |
put(float b)
Writes the float at this buffer's current position,
and then increments the position. |
FloatBuffer |
put(float[] src)
Writes the content of the the float array src
into the buffer. |
FloatBuffer |
put(float[] src,
int offset,
int length)
Writes the content of the the float array src
into the buffer. |
FloatBuffer |
put(FloatBuffer src)
Writes the content of the the FloatBUFFER src
into the buffer. |
abstract FloatBuffer |
put(int index,
float b)
Absolute put method. |
abstract FloatBuffer |
slice()
Creates a new FloatBuffer whose content is a shared
subsequence of this buffer's content. |
static FloatBuffer |
wrap(float[] array)
Wraps a float array into a FloatBuffer
object. |
static FloatBuffer |
wrap(float[] array,
int offset,
int length)
Wraps a float array into a FloatBuffer
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 FloatBuffer allocate(int capacity)
FloatBuffer
object with a given capacity.
public static final FloatBuffer wrap(float[] array, int offset, int length)
float
array into a FloatBuffer
object.
IndexOutOfBoundsException
- If the preconditions on the offset
and length parameters do not holdpublic static final FloatBuffer wrap(float[] array)
float
array into a FloatBuffer
object.
public FloatBuffer get(float[] dst, int offset, int length)
float
s from this buffer into the given
destination array. Before the transfer, it checks if there are fewer than
length float
s remaining in this buffer.
dst
- The destination arrayoffset
- The offset within the array of the first float
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
float
s remaining in this buffer.
IndexOutOfBoundsException
- If the preconditions on the offset
and length parameters do not hold.public FloatBuffer get(float[] dst)
float
s from this buffer into the given
destination array.
dst
- The byte array to write into.
BufferUnderflowException
- If there are fewer than dst.length
float
s remaining in this buffer.public FloatBuffer put(FloatBuffer src)
FloatBUFFER
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 float
s in the source buffer.
IllegalArgumentException
- If the source buffer is this buffer.
ReadOnlyBufferException
- If this buffer is read-only.public FloatBuffer put(float[] src, int offset, int length)
float 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 float
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 FloatBuffer put(float[] src)
float 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 float
s in the source array.
ReadOnlyBufferException
- If this buffer is read-only.public final boolean hasArray()
float
array.
public final float[] array()
float
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, in Float.floatToIntBits() form
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(FloatBuffer other)
FloatBuffer
objects.
compareTo
in interface Comparable<FloatBuffer>
other
- the object to be compared
ClassCastException
- If obj is not an object derived from
FloatBuffer
.public abstract ByteOrder order()
public abstract float get()
float
at this buffer's current position,
and then increments the position.
BufferUnderflowException
- If there are no remaining
float
s in this buffer.public abstract FloatBuffer put(float b)
float
at this buffer's current position,
and then increments the position.
BufferOverflowException
- If there no remaining
float
s in this buffer.
ReadOnlyBufferException
- If this buffer is read-only.public abstract float get(int index)
IndexOutOfBoundsException
- If index is negative or not smaller
than the buffer's limit.public abstract FloatBuffer put(int index, float b)
IndexOutOfBoundsException
- If index is negative or not smaller
than the buffer's limit.
ReadOnlyBufferException
- If this buffer is read-only.public abstract FloatBuffer compact()
ReadOnlyBufferException
- If this buffer is read-only.public abstract boolean isDirect()
public abstract FloatBuffer slice()
FloatBuffer
whose content is a shared
subsequence of this buffer's content.
public abstract FloatBuffer duplicate()
FloatBuffer
that shares this buffer's
content.
public abstract FloatBuffer asReadOnlyBuffer()
FloatBuffer
that shares this
buffer's content.
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