Replace String in byte[]

Question

Welcome,
I have a byte[] which is the binary representation of a String. And I wanted to replace a part of this String and get back the new byte[]!
I have tried:

String string = new String(array);
string = string.replace("#+#","SOME STRING");
array = string.getBytes();

The problem is that array is that the array afterwards is something different and not only because of the replacement.
The content of the array are serialized objects seperated with "#+#".

ok ok the serialized file is created as normal ObjectOutputStream. — Niton
– Niton, Commented May 3, 2017 at 15:07
I dont know how it is encoded: FileOutputStream fos = new FileOutputStream(target.getPathAsString()); ObjectOutputStream oos = new ObjectOutputStream(fos); oos.writeObject(T); oos.close(); fos.close(); — Niton
– Niton, Commented May 3, 2017 at 15:08

G. Fiedler · Accepted Answer · 2017-05-03 17:04:08Z

3

Be explicit about the character encoding you are using and use an encoding such as "Latin-1" where all byte sequences map to valid Unicode characters:

String string = new String(array, "Latin-1");
string = string.replace("#+#","SOME STRING");
array = string.getBytes("Latin-1");

answered May 3, 2017 at 17:04

G. Fiedler

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