Java Utililty Methods Hex Calculate

List of utility methods to do Hex Calculate

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Description

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

Method

inttoHexDigit(char ch, int index)
to Hex Digit 
int digit = Character.digit(ch, 16);
if (digit == -1) {
    throw new RuntimeException("Illegal hexadecimal charcter " + ch + " at index " + index);
return digit;
chartoHexDigit(int d)
to Hex Digit 
return (char) (d < 0xA ? d + '0' : d - 0xA + 'A');
chartoHexDigit(int d)
to Hex Digit 
switch (d) {
case 0:
case 1:
case 2:
case 3:
case 4:
case 5:
case 6:
...
chartoHexDigit(int h)
to Hex Digit 
char out;
if (h <= 9)
    out = (char) (h + 0x30);
else
    out = (char) (h + 0x37);
return out;
chartoHexDigit(int i)
Return the correct hex character for this integer value. 
return "0123456789abcdef".charAt(i);
chartoHexDigit(int number)

Return the single digit character representing the HEX encoding of the lower four bits of a given integer. 

switch (number & 0x0F) {
case 0x00:
    return '0';
case 0x01:
    return '1';
case 0x02:
    return '2';
case 0x03:
...
StringtoHexDigit(int value, int digitPosition)
Converts a base-ten integer to a hexadecimal value at a particular digit. 
int digitValue = (value >>> (digitPosition * 4)) & 0xf;
return Integer.toHexString(digitValue);
StringtoHexDigits(byte[] bytes)
to Hex Digits 
StringBuffer encoded = new StringBuffer(bytes.length * 2);
for (int eachByte = 0; eachByte < bytes.length; eachByte++) {
    encoded.append(toHexDigits(bytes[eachByte]).toUpperCase());
return encoded.toString();
StringtoHexDigits(int value)
to Hex Digits 
return String.format("%02x", value);
StringtoHexDump(byte[] ab, int cBytesPerLine)
Convert a byte array to a hex dump. 
int cb = ab.length;
if (cb == 0) {
    return "";
int cDigits = 0;
int cbTemp = cb - 1;
do {
    cDigits += 2;
...