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(byte b)
to Hex 
String st = Integer.toHexString(b);
return (st.length() == 1) ? "0" + st : st;
StringtoHex(byte b)
Renders a given by to nice human readable hex format. 
StringBuffer sb = new StringBuffer(4);
sb.append("0x");
int val = b & 0xff;
if (val < 0x10)
    sb.append("0");
sb.append(Integer.toString(val, 16));
return sb.toString();
StringtoHex(byte b)
convert to hex string 
return toHex(((long) b) & 0xFFL);
StringtoHex(byte b)
Convert a byte to its hexadecimal representation. 
return (new Character(hexDigits[(b & 0xF0) >> 4])).toString() + hexDigits[b & 0x0F];
voidtoHex(byte b, char[] charArray, int from)
Converts a byte value to hexadecimal and put the result in an array. 
charArray[from] = c[(b >> 4) & 0x0F];
charArray[from + 1] = c[b & 0x0F];
StringtoHex(byte b, String prefix)
to Hex 
return prefix + String.format("%02x", b);
StringtoHex(byte bytes[])
to Hex 
StringBuffer buf = new StringBuffer(bytes.length * 2);
int i;
for (i = 0; i < bytes.length; i++) {
    if ((bytes[i] & 0xff) < 0x10) {
        buf.append("0");
    buf.append(Long.toString(bytes[i] & 0xff, 16));
return buf.toString();
StringtoHex(byte data[])
to Hex 
char[] hex = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', };
StringBuffer result = new StringBuffer(data.length * 2);
for (int i = 0; i < data.length; i++) {
    result.append(hex[(data[i] >> 4) & 0x0f]).append(hex[data[i] & 0x0f]);
return result.toString();
StringtoHex(byte hash[])
to Hex 
if (hash == null) {
    return null;
StringBuffer buf = new StringBuffer(hash.length * 2);
int i;
for (i = 0; i < hash.length; i++) {
    if ((hash[i] & 0xff) < 0x10) {
        buf.append("0");
...
bytetoHex(byte in)
to Hex 
if (in >= '0' && in <= '9') {
    return (byte) (in - '0');
} else if (in >= 'A' && in <= 'F') {
    return (byte) (in - 'A');
} else if (in >= 'a' && in <= 'f') {
    return (byte) (in - 'a');
return in;
...