Simple encryption method

Question

Hey i am trying to create a simple encryption. This is my function.
public static String Crypt(String sData)
byte[] bytes = sData.getBytes();
for(int i=0; i<bytes.length; i++)
bytes[i] ^= 477;
return (new String(bytes));
Unfortunately the String that is returned has a lot of "???????" in it. I have also tried char arrays but to no effect. I want to be able to send the data using a socket therefore i need it in a char array or string. Can anyone help please?

Answer 1

>
return (new String(bytes));
Unfortunately the String that is returned has a lot of
"???????" in it. I have also tried char arrays but to
no effect. I want to be able to send the data using a
socket therefore i need it in a char array or string.1) Not all byte and byte combinations produce a valid String object so one cannot use 'new String(bytes)' with the certainty of being able to reverse the operation and get back the original bytes. i.e.
new String(some bytes).getBytes() usually does not return 'some bytes'.
2) You don't need to have a char array or string to send bytes down a Socket. Just send down the encrypted bytes.
3) I hope you are not considering this encryption method for an industrial strength application!