Java Utililty Methods Binary Encode

List of utility methods to do Binary Encode

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Binary Encode

Description

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

Method

String s = "";
for (int i = 7; i >= 0; i--)
 s += (n >> i) & 0x01;
return s;

String toBin(int bin, int size)
to Bin

String ret = Integer.toBinaryString(bin);
return normalizeNumber(ret, size);

String toBin(int size, String bitString)
to Bin

return String.format(String.format("%%%ds", size), bitString).replace(' ', '0');

StringBuffer toBin(int x)
to Bin

StringBuffer result = new StringBuffer();
result.append(x % 2);
x /= 2;
while (x > 0) {
 result.append(x % 2);
 x /= 2;
return result;
...

String toBin(long value, int width)
to Bin

char[] result = new char[width];
for (int cntr = 0; cntr < width; cntr++)
 result[width - cntr - 1] = (value & (0x1 << cntr)) == 0 ? '0' : '1';
return new String(result);

byte[] toBinArray(String hexStr)
to Bin Array

byte bArray[] = new byte[hexStr.length() / 2];
for (int i = 0; i < (hexStr.length() / 2); i++) {
 byte firstNibble = Byte.parseByte(hexStr.substring(2 * i, 2 * i + 1), 16); 
 byte secondNibble = Byte.parseByte(hexStr.substring(2 * i + 1, 2 * i + 2), 16);
 int finalByte = (secondNibble) | (firstNibble << 4); 
 bArray[i] = (byte) finalByte;
return bArray;
...

String toBinary(byte b)
to Binary

StringBuffer buf = new StringBuffer(8);
buf.append((b & (1 << 7)) == 0 ? '0' : '1');
buf.append((b & (1 << 6)) == 0 ? '0' : '1');
buf.append((b & (1 << 5)) == 0 ? '0' : '1');
buf.append((b & (1 << 4)) == 0 ? '0' : '1');
buf.append((b & (1 << 3)) == 0 ? '0' : '1');
buf.append((b & (1 << 2)) == 0 ? '0' : '1');
buf.append((b & (1 << 1)) == 0 ? '0' : '1');
...

String toBinary(byte b)
to Binary

return String.format("%8s", Integer.toBinaryString(b & 0xFF)).replace(' ', '0');

String toBinary(byte b)
Just for debugging and testing purposes

return String.format("%8s", Integer.toBinaryString(b & MOST_SIGNIFICANT_MASK)).replace(' ', '0');

String toBinary(byte b)
to Binary

return toBinary(b, BIN_PREFIX);