Java Utililty Methods BitSet to

List of utility methods to do BitSet to

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Description

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

Method

intbitSetToUnsignedInt(BitSet b, int startBit, int length)
Convert a BitSet to an unsigned integer. 
int val = 0;
int bitval = 1;
for (int i = 0; i < length; i++) {
    if (b.get(startBit + i))
        val += bitval;
    bitval += bitval;
return val;
...
byte[]bitsToBytes(BitSet ba, int size)
Pack the bits in ba into a byte[]. 
int bytesAlloc = countBytesForBits(size);
byte[] b = new byte[bytesAlloc];
for (int i = 0; i < b.length; i++) {
    short s = 0;
    for (int j = 0; j < 8; j++) {
        int idx = i * 8 + j;
        boolean val = (idx <= size && ba.get(idx));
        s |= (val ? (1 << j) : 0);
...
byte[]BitsToBytes(BitSet bits)
Bits To Bytes 
return (BitsToBytes(bits, bits.length()));
StringbitsToHexString(BitSet ba, int size)
Pack the bits in ba into a byte[] then convert that to a hex string and return it. 
return bytesToHex(bitsToBytes(ba, size));
longBitsToInt(BitSet bits, int length)
Bits To Int 
int j = 0;
byte[] bytes = new byte[length / 8 + 1];
long result = 0;
for (int i = (length - 1); i >= 0; i--) {
    if (bits.get(i)) {
        bytes[bytes.length - j / 8 - 1] |= 1 << (j % 8);
    j++;
...
intconvert(BitSet bits)
convert 
assert bits.length() <= 32;
int value = 0;
for (int i = 0; i < bits.length(); ++i) {
    value += bits.get(i) ? 1 << i : 0;
return value;
longconvert(BitSet bits)
convert 
long value = 0L;
for (int i = 0; i < bits.length(); ++i) {
    value += bits.get(i) ? (1L << i) : 0L;
return value;