Convert a string back into Origional Format

Question

I convert a byte array msg into a string encodedmsg withe the formatting ISO-8859-1 like this:
String encodedmsg = new String(msg, "ISO-8859-1");
I cant work out how to now go from my string encodedmsg back to the byte array msg, essentially revert what I do in the first place. Any help would be much appreaciated :)

Answer 1

You can get back byte[] as follows:

byte[] arr = encodedmsg.getBytes(Charset.forName("ISO-8859-1"));

Demo:

import java.io.UnsupportedEncodingException;
import java.nio.charset.Charset;
import java.util.Arrays;

public class Main {
    public static void main(String[] args) throws UnsupportedEncodingException {
        byte[] msg = "hello".getBytes();
        System.out.println(Arrays.toString(msg));
        String encodedmsg = new String(msg, "ISO-8859-1");
        System.out.println(encodedmsg);
        byte[] arr = encodedmsg.getBytes(Charset.forName("ISO-8859-1"));
        System.out.println(Arrays.toString(arr));
    }
}

Output:

[104, 101, 108, 108, 111]
hello
[104, 101, 108, 108, 111]

Answer 2

new String(encodedmsg.getBytes("ISO-8859-1"));