Java Utililty Methods ASCII to Binary

List of utility methods to do ASCII to Binary

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Description

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

Method

booleanascii2bin(byte[] ascii, int offset, int len, byte[] binary)
asciibin 
assert len % 2 == 0;
assert binary.length >= len >>> 1;
boolean zeroBytes = true;
for (int i = 0, j = offset; i < len >>> 1; i++) {
    int b = ascii[j++] & 0xCF; 
    int hiNibble = b > 64 ? b - 55 : b;
    b = ascii[j++] & 0xCF;
    int lowNibble = b > 64 ? b - 55 : b;
...
StringAsciiToBinary(String asciiString)
Ascii To Binary 
byte[] bytes = asciiString.getBytes();
StringBuilder binary = new StringBuilder();
for (byte b : bytes) {
    int val = b;
    for (int i = 0; i < 8; i++) {
        binary.append((val & 128) == 0 ? 0 : 1);
        val <<= 1;
return binary.toString();
byteasciiToRawQuality(char quality)
ascii To Raw Quality 
return (byte) (quality - PHRED_LOWER_LIMIT_CHAR);