java.nio
public
abstract
class
java.nio.IntBuffer
A buffer of int
s.
A int buffer can be created in either of the following ways:
- Allocate a new int array and create a buffer
based on it;
- Wrap an existing int array to create a new buffer;
- Use ByteBuffer.asIntBuffer to
create a int buffer based on a byte buffer.
Summary
Public Methods
capacity,
clear,
flip,
hasRemaining,
isReadOnly,
limit,
limit,
mark,
position,
position,
remaining,
reset,
rewind
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait
Details
Public Methods
public
static
IntBuffer
allocate(int capacity)
Creates a int buffer based on a new allocated int array.
Parameters
capacity
| The capacity of the new buffer |
public
final
int[]
array()
Returns the int array which this buffer is based on, if there's one.
Returns
- The int array which this buffer is based on
public
final
int
arrayOffset()
Returns the offset of the int array which this buffer is based on, if
there's one.
The offset is the index of the array corresponds to the zero position of
the buffer.
Returns
- The offset of the int array which this buffer is based on
public
abstract
IntBuffer
asReadOnlyBuffer()
Returns a readonly buffer that shares content with this buffer.
The returned buffer is guaranteed to be a new instance, even this buffer
is readonly itself. The new buffer's position, limit, capacity and mark
are the same as this buffer.
The new buffer shares content with this buffer, which means this buffer's
change of content will be visible to the new buffer. The two buffer's
position, limit and mark are independent.
Returns
- A readonly version of this buffer.
public
abstract
IntBuffer
compact()
Compacts this int buffer.
The remaining int
s will be moved to the head of the
buffer, staring from position zero. Then the position is set to
remaining()
; the limit is set to capacity; the mark is
cleared.
public
int
compareTo(IntBuffer otherBuffer)
Compare the remaining
int
s of this buffer to another int
buffer's remaining
int
s.
Parameters
otherBuffer
| Another int buffer |
Returns
- a negative value if this is less than
other
; 0 if
this equals to other
; a positive value if this is
greater than other
public
abstract
IntBuffer
duplicate()
Returns a duplicated buffer that shares content with this buffer.
The duplicated buffer's position, limit, capacity and mark are the same
as this buffer. The duplicated buffer's readonly property and byte order
are same as this buffer too.
The new buffer shares content with this buffer, which means either
buffer's change of content will be visible to the other. The two buffer's
position, limit and mark are independent.
Returns
- A duplicated buffer that shares content with this buffer.
public
boolean
equals(Object other)
Tests whether this int buffer equals to another object.
If other
is not a int buffer, then false is returned.
Two int buffers are equals if, and only if, their remaining
int
s are exactly the same. Position, limit, capacity and
mark are not considered.
Parameters
other
| the object to be compared against |
Returns
- Whether this int buffer equals to another object.
public
abstract
int
get()
Returns the int at the current position and increase the position by 1.
Returns
- The int at the current position.
public
IntBuffer
get(int[] dest)
Reads
int
s from the current position into the specified
int array and increase the position by the number of
int
s
read.
Calling this method has the same effect as
get(dest, 0, dest.length)
.
Parameters
dest
| The destination int array |
public
abstract
int
get(int index)
Returns a int at the specified index, and the position is not changed.
Parameters
index
| The index, must be no less than zero and less than limit |
Returns
- A int at the specified index.
public
IntBuffer
get(int[] dest, int off, int len)
Reads
int
s from the current position into the specified
int array, starting from the specified offset, and increase the position
by the number of
int
s read.
Parameters
dest
| The target int array |
off
| The offset of the int array, must be no less than zero and no
greater than dest.length |
len
| The number of int s to read, must be no less
than zero and no greater than dest.length - off |
public
final
boolean
hasArray()
Returns whether this buffer is based on a int array and is read/write.
If this buffer is readonly, then false is returned.
Returns
- Whether this buffer is based on a int array and is read/write.
public
int
hashCode()
Hash code is calculated from the remaining
int
s.
Position, limit, capacity and mark don't affect the hash code.
Returns
- The hash code calculated from the remaining
int
s.
public
abstract
boolean
isDirect()
Returns true if this buffer is direct.
A int buffer is direct, if it is based on a byte buffer and the byte
buffer is direct.
Returns
- True if this buffer is direct.
public
abstract
ByteOrder
order()
Returns the byte order used by this buffer when converting
int
s from/to
byte
s.
If this buffer is not based on a byte buffer, then always return the
platform's native byte order.
Returns
- The byte order used by this buffer when converting
int
s from/to byte
s.
public
abstract
IntBuffer
put(int i)
Writes the given int to the current position and increase the position by
1.
public
final
IntBuffer
put(int[] src)
Writes
int
s in the given int array to the current
position and increase the position by the number of
int
s
written.
Calling this method has the same effect as
put(src, 0, src.length)
.
Writes all the remaining
int
s of the
src
int buffer to this buffer's current position, and increase both buffers'
position by the number of
int
s copied.
Parameters
src
| The source int buffer |
public
abstract
IntBuffer
put(int index, int i)
Write a int to the specified index of this buffer and the position is not
changed.
Parameters
index
| The index, must be no less than zero and less than the limit |
i
| The int to write |
public
IntBuffer
put(int[] src, int off, int len)
Writes
int
s in the given int array, starting from the
specified offset, to the current position and increase the position by
the number of
int
s written.
Parameters
src
| The source int array |
off
| The offset of int array, must be no less than zero and no
greater than src.length |
len
| The number of int s to write, must be no less
than zero and no greater than src.length - off |
public
abstract
IntBuffer
slice()
Returns a sliced buffer that shares content with this buffer.
The sliced buffer's capacity will be this buffer's
remaining()
, and its zero position will correspond to
this buffer's current position. The new buffer's position will be 0,
limit will be its capacity, and its mark is unset. The new buffer's
readonly property and byte order are same as this buffer.
The new buffer shares content with this buffer, which means either
buffer's change of content will be visible to the other. The two buffer's
position, limit and mark are independent.
Returns
- A sliced buffer that shares content with this buffer.
public
String
toString()
Returns a string represents the state of this int buffer.
Returns
- A string represents the state of this int buffer.
public
static
IntBuffer
wrap(int[] array)
Creates a new int buffer by wrapping the given int array.
Calling this method has the same effect as
wrap(array, 0, array.length)
.
Parameters
array
| The int array which the new buffer will be based on |
public
static
IntBuffer
wrap(int[] array, int start, int len)
Creates new a int buffer by wrapping the given int array.
The new buffer's position will be start
, limit will be
start + len
, capacity will be the length of the array.
Parameters
array
| The int array which the new buffer will be based on |
start
| The start index, must be no less than zero and no greater than
array.length |
len
| The length, must be no less than zero and no greater than
array.length - start |