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java.lang.Objectcom.itextpdf.text.pdf.qrcode.BitArray
public final class BitArray
A simple, fast array of bits, represented compactly by an array of ints internally.
| Field Summary | |
|---|---|
int[] |
bits
|
int |
size
|
| Constructor Summary | |
|---|---|
BitArray(int size)
|
|
| Method Summary | |
|---|---|
void |
clear()
Clears all bits (sets to false). |
void |
flip(int i)
Flips bit i. |
boolean |
get(int i)
|
int[] |
getBitArray()
|
int |
getSize()
|
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. |
java.lang.String |
toString()
|
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Field Detail |
|---|
public int[] bits
public final int size
| Constructor Detail |
|---|
public BitArray(int size)
| Method Detail |
|---|
public int getSize()
public boolean get(int i)
i - bit to get
public void set(int i)
i - bit to setpublic void flip(int i)
i - bit to set
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 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 set
java.lang.IllegalArgumentException - if end is less than or equal to startpublic int[] getBitArray()
public void reverse()
public java.lang.String toString()
toString in class java.lang.Object
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