Java read string as byte[]

Question

I want to convert a series of bytes in a byte[] to a string to append to a text file. Then when the string is pulled I want to convert it back to byte[] to decode it. I know I can't use getBytes(), I need to copy the string to it's original byte[] format then decode it back to a readable string. Is this possible?

     byte[] hash = pw.getBytes("UTF8");
     pw = hash.toString();

Then I pass the string to another class where I need it to be read as bytes, not changed to its byte form.

score 3 · Answer 1 · edited Mar 23 '16 at 11:54

3

toString won't work. You need to write, because that is the string representation of Array Object.

String s = new String(hash,"UTF-8");

edited Mar 23 '16 at 11:54

Roman C

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answered Oct 22 '15 at 19:14

Suresh Atta

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So this is the correct way to turn the byte[] in to a String. How do I convert the String back in to bytes? – caine1337 Oct 22 '15 at 19:21
@caine1337: Exactly the way you did it in your original question, with `pw.getBytes("UTF-8")`. You've _already done_ that correctly. – Louis Wasserman Oct 22 '15 at 19:22
@caine1337 `byte[] hash = pw.getBytes("UTF8");` where pw is a string. – Suresh Atta Oct 22 '15 at 19:24
Down votes, when helping ?? Great. – Suresh Atta Oct 22 '15 at 19:25
So the series of encoded characters in my String will be read by getBytes the same way that the original String would? – caine1337 Oct 22 '15 at 19:26

Java read string as byte[]

1 Answers1