Java Utililty Methods Bit Set

List of utility methods to do Bit Set

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Description

The list of methods to do Bit Set are organized into topic(s).

Method

bytesetBits(byte in, byte data, int position, int fillBits)
set Bits 
if (position - fillBits == 0) {
    fillBits++;
in |= data << 9 - position - fillBits;
return in;
bytesetBits(final byte value, final int bitMask, final boolean val)
set Bits 
byte mask = (byte) (0xFF ^ bitMask);
byte tmp = (byte) (value & mask);
if (val) {
    tmp |= bitMask;
return tmp;
intsetBits(int lowBit, int numBits)
Set numBits bits in an integer starting at lowBit and working higher. 
int result = 1;
for (int i = 0; i < numBits - 1; ++i) {
    result = (result << 1) | 1;
for (int i = 0; i < lowBit; ++i) {
    result <<= 1;
return result;
...
intsetBits(int value, int bits)
Set selected bit(s) in giving value 
return value | bits;
longsetBits(long value, long bits)
Sets the bits of a value. 
return value | bits;
voidsetBitsFromLong(byte[] dst, long dstoff, long l, int off, int len)
set Bits From Long 
int shift = off;
while (len > 0) {
    int bitoff = (int) dstoff & 7;
    int dstByteOff = (int) (dstoff >> 3);
    if (bitoff == 0 && len >= 8) {
        do {
            dst[dstByteOff] = (byte) ((l >>> shift) & 0xff);
            shift += 8;
...
longsetBitsInLong(long l, int n, int k, long v)
Return a 'long' value with k bits starting at bit n assigned according to v I.e. 
long temp = ~(~0L << k);
long temp2 = ~(temp << n);
long temp3 = l & temp2;
return temp3 | (v << n);
longsetBitTo0(final long word, final int idx)
set Bit To 
return (~(1l << idx) & word);
intsetBitValue(byte aByte, int bitIndex, int bitValue)
Sets the bit value of the provided byte at the provided bitIndex (0 <= bitIndex <=7) to the provided bitValue(0 or 1). 
if (bitIndex >= BITS_PER_BYTE) {
    throw new ArrayIndexOutOfBoundsException("The provided bitIndex[" + bitIndex
            + "] is larger than the size of a byte[" + BITS_PER_BYTE + "].");
if (bitIndex < 0) {
    throw new ArrayIndexOutOfBoundsException(
            "The provided bitIndex[" + bitIndex + "] must be greater than or equal to zero.");
byte newByte = (byte) 0;
if (bitValue == 0) {
    newByte = (byte) (aByte & ~(1 << bitIndex));
} else if (bitValue == 1) {
    newByte = (byte) (aByte | (1 << bitIndex));
} else {
    throw new IllegalArgumentException("The provided bitValue[" + bitValue + "] must be either 0 or 1.");
return newByte;
intsetBitValueAt(int destination, int value, int index)
set Bit Value At 
return destination | value << index;