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

StringtoHexString(long i)
to Hex String 
return toUnsignedString(i, 4);
StringtoHexString(long l)
J2ME/J9 compatibility instead of Long.toHexString Copied from bluecove: http://www.bluecove.org/bluecove/apidocs/com/intel/bluetooth/Utils.html 
StringBuffer buf = new StringBuffer();
String lo = Integer.toHexString((int) l);
if (l > 0xffffffffl) {
    String hi = Integer.toHexString((int) (l >> 32));
    buf.append(hi);
    for (int i = lo.length(); i < 8; i++) {
        buf.append('0');
buf.append(lo);
return buf.toString();
StringtoHexString(long l)
Converts long to hexadecimal string. 
return Long.toString(l, 16);
StringtoHexString(long l)
to Hex String 
return String.format("%x", l);
StringtoHexString(long l)
Convert a long to it's hex representation. 
String initial;
StringBuffer sb;
initial = Long.toHexString(l);
if (initial.length() == 16)
    return initial;
sb = new StringBuffer(16);
sb.append(initial);
while (sb.length() < 16)
...
StringtoHexString(long value, int digits)
to Hex String 
String ret = toHexString(value);
int add = digits - getStringLength(ret);
for (int i = 0; i < add; i++) {
    ret = "0" + ret;
return ret;
StringtoHexString(long value, int digits)
Returns a hexadecimal string representing the passed value, padded as necessary to the specified number of digits. 
StringBuilder sb = new StringBuilder(digits);
while (digits > 0) {
    int nibble = (int) (value & 0xF);
    sb.insert(0, "0123456789ABCDEF".charAt(nibble));
    value >>= 4;
    digits--;
return sb.toString();
...
StringToHexString(long[] data)
To Hex String 
StringBuilder sb = new StringBuilder();
for (int i = 0; i < data.length; i++) {
    sb.append(PadLeft(Long.toHexString(data[i]), 16));
return sb.toString();
StringtoHexString(String data)
Convert string to hex string. 
char[] HEX_CHARS = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
byte[] byteData = data.getBytes();
int length = byteData.length;
char[] charBuffer = new char[length * 2];
int next;
for (int byteCnt = 0, charCnt = 0; byteCnt < length;) {
    next = byteData[byteCnt++];
    charBuffer[charCnt++] = HEX_CHARS[(next >>> 4) & 0x0F];
...
StringtoHexString(String input)
to Hex String 
StringBuffer sb = new StringBuffer();
byte[] bytes = input.getBytes();
for (int i = 0; i < bytes.length; i++) {
    String hex = Integer.toHexString(bytes[i]);
    if (hex.length() == 1) {
        sb.append("0");
    } else if (hex.length() > 2) {
        hex = hex.substring(hex.length() - 2, hex.length());
...