Convert hex To Bytes : UTF8 Byte Hex « Development Class « Java





Convert hex To Bytes

      
public class HexCodec {
  private static final char[] kDigits = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a',
      'b', 'c', 'd', 'e', 'f' };

  public static byte[] hexToBytes(char[] hex) {
    int length = hex.length / 2;
    byte[] raw = new byte[length];
    for (int i = 0; i < length; i++) {
      int high = Character.digit(hex[i * 2], 16);
      int low = Character.digit(hex[i * 2 + 1], 16);
      int value = (high << 4) | low;
      if (value > 127)
        value -= 256;
      raw[i] = (byte) value;
    }
    return raw;
  }

  public static byte[] hexToBytes(String hex) {
    return hexToBytes(hex.toCharArray());
  }
}

   
    
    
    
    
  










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