Java Utililty Methods Bits Convert to

List of utility methods to do Bits Convert to

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Description

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

Method

intbit(byte[] h, int i)
Get the i'th bit of a byte array. 
return (h[i >> 3] >> (i & 7)) & 1;
intbit(int a, int b)
bit 
return (a & (1 << b)) >> b;
longbit(int row, int col)
Bitboard containing a single set bit 
return 1L << square(row, col);
intBIT(int x)
BIT 
return (1 << x);
bytebitArray2byte(boolean[] array)
bit Arraybyte 
if (array == null || array.length != 8) {
    throw new RuntimeException("Bad bit array");
byte b = 0;
for (int i = 0; i <= 7; i++) {
    if (array[i]) {
        int nn = (1 << (7 - i));
        b += nn;
...
byte[]bitarrayShiftAndFill(byte[] data, int length, int shift, byte first, byte last)
Shifts data bits left and fills insignificant bits between data bits and next byte boundaries with data from given first and last byte. 
byte[] result;
if (shift > ((data.length * 8) - length)) {
    result = new byte[data.length + 1];
    result[0] = (byte) 0x00;
    System.arraycopy(data, 0, result, 1, data.length);
} else {
    result = new byte[data.length];
    System.arraycopy(data, 0, result, 0, data.length);
...
bytebitArrayToByte(byte[] bytes)
bit Array To Byte 
byte rtnValue = 0;
final int length = bytes.length;
for (int i = 1; i <= length; i++) {
    final int power = length - i;
    rtnValue += bytes[i - 1] * Math.pow(2, power);
return rtnValue;
StringBitArrayToString(Boolean[] asciiBinary)
Bit Array To String 
int index = 0;
String message = "";
int asciiValue = 0;
for (boolean item : asciiBinary) {
    if (item) {
        asciiValue += Math.pow(2, LETTER_BIT_WIDTH - (index % LETTER_BIT_WIDTH) - 1);
    index++;
...
StringbitboardToString(final long l)
Takes a bitboard and returns a 64 character string representation 
final String lString = Long.toBinaryString(l);
final byte paddingZeros = (byte) (64 - lString.length());
final StringBuilder b = new StringBuilder(64);
for (byte i = 0; i < paddingZeros; i++) {
    b.append("0");
for (byte i = 0; i < lString.length(); i++) {
    b.append(lString.charAt(i));
...
StringbitboardToString(long bitboard)
Converts a bitboard, not a board, to a string. 
String asBinary = Long.toBinaryString(bitboard);
while (asBinary.length() != 64)
    asBinary = "0" + asBinary;
String s = "     a   b   c   d   e   f   g   h\n";
s += "   +---+---+---+---+---+---+---+---+\n 8 | ";
for (int up = 7; up >= 0; up--) {
    for (int out = 0; out < 8; out++) {
        if (asBinary.charAt(63 - (up * 8 + out)) == '1')
...