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

StringtoHex(String txt)
to Hex 
return toHex(txt.getBytes());
StringtoHex(String val)
to Hex 
String ret = "0x";
for (int i = 0; i < val.length(); i++) {
    ret += toHex(val.charAt(i), 2);
return ret;
voidtoHex(StringBuffer buf, long value, int width)
to Hex 
if (value > (long) 1 << width * 4) {
    buf.append(Long.toHexString(value).toUpperCase());
    return;
for (int cntr = width - 1; cntr >= 0; cntr--)
    buf.append(HEX_CHARS[(int) (value >> (cntr * 4)) & 0xf]);
voidtoHex(StringBuilder s, byte b)
to Hex 
char hi = Character.forDigit((b >> 4) & 0x0F, 16);
char lo = Character.forDigit(b & 0x0F, 16);
s.append(Character.toUpperCase(hi));
s.append(Character.toUpperCase(lo));
StringtoHex00String(int c)
to Hex String 
String s = Integer.toHexString(c);
if (s.length() == 1) {
    return "0" + s;
} else {
    return s;
StringtoHEX1(byte b)
utility method to convert a byte to a hexadecimal string. 
char[] buf = new char[2];
int j = 0;
buf[j++] = HEX_DIGITS[(b >>> 4) & 0x0F];
buf[j++] = HEX_DIGITS[b & 0x0F];
return new String(buf);
StringtoHex16(int w)
to Hex 
return toHex((byte) (0xff & (w >> 8))) + toHex((byte) (0xff & w));
StringtoHex16(long l)
to Hex 
String s = "000000000000000" + Long.toHexString(l);
s = s.substring(s.length() - 16);
return hexUpperCase ? s.toUpperCase() : s;
StringtoHex4(int value)
to Hex 
if (value < 0)
    value &= 0xffff;
return padAddress(Integer.toHexString(value & 0x7fffffff).toUpperCase());
StringtoHex8(long x)
to Hex 
String s = Long.toHexString(x);
if (s.length() % 8 != 0) {
    int r = 8 - s.length();
    for (int i = 0; i < r; i++)
        s = "0" + s;
return s;