java.nio
public abstract class FloatBuffer extends Buffer implements Comparable<FloatBuffer>
Modifier and Type | Method and Description |
---|---|
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. |
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 holdReadOnlyBufferException
- 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 toObject.hashCode()
public int compareTo(FloatBuffer other)
FloatBuffer
objects.compareTo
in interface Comparable<FloatBuffer>
other
- the object to be comparedClassCastException
- If obj is not an object derived from
FloatBuffer
.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.