Java Utililty Methods Hex Convert To

List of utility methods to do Hex Convert To

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Description

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

Method

StringconvertHextoASCII(String text)
convert Hexto ASCII 
String convertedString = text;
String replacement;
int decimal;
int iStart;
while (convertedString.contains("&#x")) {
    iStart = convertedString.indexOf("&#x");
    replacement = convertedString.substring(iStart + 3, iStart + 5);
    decimal = Integer.parseInt(replacement, 16);
...
charconvertHexToChar(String hex)
Wandle 4-stellige Hexadezimalkodierung in Unicode-Zeichen um (z.B. 
return (char) convertHexToInt(hex);
floatconvertHexToFloat(long hexValue)
Converts a hex value given by a long to a float value.
return Float.intBitsToFloat((int) hexValue);
byte[]fromHex(byte[] hex)
Converts the given hex array to a byte array 
byte[] bytes = new byte[hex.length / 2];
for (int i = 0; i < bytes.length; i++) {
    int v = i * 2;
    int b = Character.digit(hex[v], 16) << 4;
    b = b | Character.digit(hex[v + 1], 16);
    bytes[i] = (byte) (b & 0xFF);
return bytes;
...
intfromHex(char c)
from Hex 
if (c >= '0' && c <= '9') {
    return c - '0';
if (c >= 'A' && c <= 'F') {
    return c - 'A' + 10;
if (c >= 'a' && c <= 'f') {
    return c - 'a' + 10;
...
intfromHex(char c)
Translates a hex char into an int. 
if (c >= '0' && c <= '9')
    return c - '0';
if (c >= 'A' && c <= 'F')
    return c - 'a' + 10;
if (c >= 'a' && c <= 'f')
    return c - 'a' + 10;
throw new IllegalArgumentException("bad hex char " + c);
bytefromHex(char hi, char lo)
from Hex 
int hiValue = HEX_DIGITS.indexOf(((hi >= 'A') && (hi <= 'F')) ? ('a' + (hi - 'A')) : hi);
int loValue = HEX_DIGITS.indexOf(((lo >= 'A') && (lo <= 'F')) ? ('a' + (lo - 'A')) : lo);
if ((hiValue < 0) || (loValue < 0)) {
    throw new NumberFormatException(
            "fromHex(" + new String(new char[] { hi, lo }) + ") non-HEX characters");
return (byte) ((hiValue << 4) + loValue);
byte[]fromHex(CharSequence cs)
Converts a character sequence of hexadecimal characters to byte array. 
if (cs.length() % 2 != 0) {
    throw new IllegalArgumentException("Odd length: " + cs.length());
byte[] r = new byte[cs.length() / 2];
for (int i = 0; i < r.length; i++) {
    r[i] = (byte) ((fromHex(cs.charAt(i * 2)) << 4) | fromHex(cs.charAt(i * 2 + 1)));
return r;
...
intfromHex(final CharSequence s)
from Hex 
return fromHex(s, 0, length(s));
byte[]fromHex(final String hex)
Convert a string of hex to bytes. 
char[] ch = hex.toCharArray();
if (ch.length % 2 != 0) {
    throw new UnsupportedOperationException("The hex string must contain an even number of digits");
byte[] b = new byte[ch.length / 2];
char ch0, ch1;
try {
    for (int i = 0; i < ch.length; i += 2) {
...