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 public static byte hex_to_bytes(String hex) 
 if (hex == null) 
 return null;
 
 char chars = hex.toCharArray();
 int start = 0;
 int end = hex.length();
 int len = (end - start) >> 1;
 byte bytes = new byte[len];
 for (int i = 0; i < len; i++) = (c >= '0' && c <= '9') ? c - '0'
 : (c >= 'A' && c <= 'F') ? c - ('A' - 10)
 : (c >= 'a' && c <= 'f') ? c - ('f' - 10)
 : 0;
 bytes[i] = (byte) b;
 
 return bytes;

 public static byte hex_to_bytes(String hex) 
 if (hex == null) 
 return null;
 
 char chars = hex.toCharArray();
 int start = 0;
 int end = hex.length();
 int len = (end - start) >> 1;
 byte bytes = new byte[len];
 for (int i = 0; i < len; i++) = (c >= '0' && c <= '9') ? c - '0'
 : (c >= 'A' && c <= 'F') ? c - ('A' - 10)
 : (c >= 'a' && c <= 'f') ? c - ('f' - 10)
 : 0;
 bytes[i] = (byte) b;
 
 return bytes;

 public static byte hex_to_bytes(String hex) 
 if (hex == null) 
 return null;
 
 char chars = hex.toCharArray();
 int start = 0;
 int end = hex.length();
 int len = (end - start) >> 1;
 byte bytes = new byte[len];
 for (int i = 0; i < len; i++) = (c >= '0' && c <= '9') ? c - '0'
 : (c >= 'A' && c <= 'F') ? c - ('A' - 10)
 : (c >= 'a' && c <= 'f') ? c - ('f' - 10)
 : 0;
 bytes[i] = (byte) b;
 
 return bytes;

 public static byte hex_to_bytes(String hex) 
 if (hex == null) 
 return null;
 
 char chars = hex.toCharArray();
 int start = 0;
 int end = hex.length();
 int len = (end - start) >> 1;
 byte bytes = new byte[len];
 for (int i = 0; i < len; i++) = (c >= '0' && c <= '9') ? c - '0'
 : (c >= 'A' && c <= 'F') ? c - ('A' - 10)
 : (c >= 'a' && c <= 'f') ? c - ('f' - 10)
 : 0;
 bytes[i] = (byte) b;
 
 return bytes;

Your Answer

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