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

byte[]fromHex(String hex)
from Hex 
char[] hexChars = hex.toCharArray();
int n = hexChars.length;
byte[] bytes = new byte[(int) Math.ceil(n / 2.0)];
for (int c = 0; c < n; c += 2) {
    byte i = (byte) (charToNum(hexChars[c]) << 4);
    byte j = (c + 1 < n) ? charToNum(hexChars[c + 1]) : 0;
    bytes[c / 2] = (byte) (i + j);
return bytes;
StringfromHex(String hex)
from Hex 
return new String(toByte(hex));
byte[]fromHex(String hex)
from Hex 
if (hex != null && hex.length() > 1) {
    try {
        byte bytes[] = new byte[hex.length() / 2];
        for (int i = 0; i < bytes.length; i++) {
            bytes[i] = (byte) Integer.parseInt(hex.substring(i << 1, (i << 1) + 2), 16);
        return bytes;
    } catch (Throwable e) {
...
byte[]fromHex(String hex)
from Hex 
final int len = hex.length();
byte[] out = new byte[len >> 1];
final char[] chars = hex.toCharArray();
for (int i = 0; i < out.length; i++) {
    final byte i1 = hexCharToByte(chars[i << 1]);
    final byte i2 = hexCharToByte(chars[(i << 1) + 1]);
    out[i] = (byte) ((i1 << 4) + i2);
return out;
byte[]fromHex(String hex)
from Hex 
byte[] res = new byte[hex.length() / 2];
for (int i = 0; i < res.length; i++) {
    res[i] = (byte) ((fromHexShort(hex.charAt(i * 2)) << 4) + fromHexShort(hex.charAt(i * 2 + 1)));
return res;
byte[]fromHex(String hex)
from Hex 
int len = hex.length();
byte[] data = new byte[len / 2];
for (int i = 0; i < len; i += 2) {
    data[i / 2] = (byte) ((Character.digit(hex.charAt(i), 16) << 4)
            + Character.digit(hex.charAt(i + 1), 16));
return data;
byte[]fromHex(String hex)
from Hex 
return fromHex(hex, '0');
byte[]fromHex(String hexBytes)
from Hex 
byte[] result = new byte[(hexBytes.length() + 1) / 2];
int n = 0;
for (char c : hexBytes.toCharArray()) {
    int digit = Character.digit(c, 16);
    if (digit == -1)
        throw new IllegalArgumentException("Not a valid hex digit: " + c);
    int index = n >>> 1;
    if ((n & 1) == 0) {
...
byte[]fromHex(String hexData)
from Hex 
byte[] result = new byte[(hexData.length() + 1) / 2];
String hexNumber = null;
int stringOffset = 0;
int byteOffset = 0;
while (stringOffset < hexData.length()) {
    hexNumber = hexData.substring(stringOffset, stringOffset + 2);
    stringOffset += 2;
    result[(byteOffset++)] = ((byte) Integer.parseInt(hexNumber, 16));
...
byte[]fromHex(String hexStr)
from Hex 
int byteSize = 2;
byte[] result = new byte[hexStr.length() / byteSize];
for (int i = 0; i < hexStr.length() / byteSize; i++) {
    String current = hexStr.substring(byteSize * i, byteSize * (i + 1));
    result[i] = (byte) Integer.parseInt(current, 16);
return result;