| Modifier and Type | Method and Description |
|---|---|
void |
appendBit(boolean bit) |
void |
appendBitArray(BitArray other) |
void |
appendBits(int value,
int numBits)
Appends the least-significant bits, from value, in order from most-significant to
least-significant.
|
void |
clear()
Clears all bits (sets to false).
|
BitArray |
clone() |
boolean |
equals(Object o) |
void |
flip(int i)
Flips bit i.
|
boolean |
get(int i) |
int[] |
getBitArray() |
int |
getNextSet(int from) |
int |
getNextUnset(int from) |
int |
getSize() |
int |
getSizeInBytes() |
int |
hashCode() |
boolean |
isRange(int start,
int end,
boolean value)
Efficient method to check if a range of bits is set, or not set.
|
void |
reverse()
Reverses all bits in the array.
|
void |
set(int i)
Sets bit i.
|
void |
setBulk(int i,
int newBits)
Sets a block of 32 bits, starting at bit i.
|
void |
setRange(int start,
int end)
Sets a range of bits.
|
void |
toBytes(int bitOffset,
byte[] array,
int offset,
int numBytes) |
String |
toString() |
void |
xor(BitArray other) |
public int getSize()
public int getSizeInBytes()
public boolean get(int i)
i - bit to getpublic void set(int i)
i - bit to setpublic void flip(int i)
i - bit to setpublic int getNextSet(int from)
from - first bit to checkgetNextUnset(int)public int getNextUnset(int from)
from - index to start looking for unset bitsize if none are unset until the endgetNextSet(int)public void setBulk(int i,
int newBits)
i - first bit to setnewBits - the new value of the next 32 bits. Note again that the least-significant bit
corresponds to bit i, the next-least-significant to i+1, and so on.public void setRange(int start,
int end)
start - start of range, inclusive.end - end of range, exclusivepublic void clear()
public boolean isRange(int start,
int end,
boolean value)
start - start of range, inclusive.end - end of range, exclusivevalue - if true, checks that bits in range are set, otherwise checks that they are not setIllegalArgumentException - if end is less than start or the range is not contained in the arraypublic void appendBit(boolean bit)
public void appendBits(int value,
int numBits)
value - int containing bits to appendnumBits - bits from value to appendpublic void appendBitArray(BitArray other)
public void xor(BitArray other)
public void toBytes(int bitOffset,
byte[] array,
int offset,
int numBytes)
bitOffset - first bit to start writingarray - array to write into. Bytes are written most-significant byte first. This is the opposite
of the internal representation, which is exposed by getBitArray()offset - position in array to start writingnumBytes - how many bytes to writepublic int[] getBitArray()
public void reverse()
Copyright © 2007–2018. All rights reserved.