Java Utililty Methods Bit Set

List of utility methods to do Bit Set

  1. HOME
  2. Java
  3. B
  4. Bit Set

Description

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

Method

bytesetBit(byte input, int bit)
set Bit 
return (byte) (input | BYTE[bit]);
bytesetBit(byte original, int bitToSet)
Sets a bit to one in a byte then returns new byte 
return (byte) (original | (1 << bitToSet));
bytesetBit(byte target, byte pos)
set Bit 
return target |= (1 << pos);
bytesetBit(byte v, int position, boolean value)
Returns v, with the bit at position set to 1 or 0 depending on value. 
return (byte) setBit((int) v, position, value);
bytesetBit(byte value, int bit, boolean on)
sets the specified bit to a value 
if (bit < 0 || bit >= 8)
    throw new IllegalArgumentException("invalid bit position");
byte pos = (byte) (1 << bit);
if (on)
    return (byte) (value | pos);
else
    return (byte) (value & ~pos);
bytesetBit(byte value, int bit, boolean state)
Sets a single bit in a byte value 
return (byte) setBit((int) value, bit, state);
bytesetBit(byte value, int bit, boolean state)
Sets the given bit in the given value. 
return state ? (byte) (value | bit) : (byte) (value & ~bit);
voidsetBit(byte[] arr, int bit)
set Bit 
int index = bit / 8; 
int bitPosition = bit % 8; 
arr[index] = (byte) (arr[index] | (1 << bitPosition));
byte[]setBit(byte[] b, int index)
Sets the bit at the specified index of b to 1. 
int maxIndex = b.length * 8 - 1;
if ((index < 0) || (index > maxIndex)) {
    throw new IndexOutOfBoundsException(
            "Invalid bit index: " + index + " for " + b.length + "-byte array.");
int byteOffset = b.length - (index / 8) - 1;
int bitOffset = index % 8;
byte mask = (byte) (0xFF & (1 << bitOffset));
...
voidsetBit(byte[] ba, int bit_offset, boolean on)
set Bit 
int byte_idx = bit_offset / 8;
int bit_remainder = bit_offset % 8;
byte bit_mask = (byte) ((0x1 << (7 - bit_remainder)) & 0xFF);
if (on) {
    ba[byte_idx] |= bit_mask;
} else {
    ba[byte_idx] &= ~bit_mask;