I create ByteArrayOutputStream barr = new ByteArrayOutputStream(1);, i.e. with capacity 1 bytes and write to it more than 1 byte barr.write("123456789000000".getBytes());. No error occurs, I check the length of barr it is 15. Why my writing was not blocked or wrapped? Is there a way to prevent of writing more than capacity and which outputstream could be used for that?
I am very limited in available memory and don`t want to write there more than my limitations define
P.S. Thanks a lot for the answers! I had a following up question It could be great if you could look
That is because the capacity that you specify to the constructor is the initial size of the buffer. If you write more data, the buffer will be automatically re-allocated with a larger size, to fit more data.
As far as I know, there is no way with ByteArrayOutputStream to limit the growth of the buffer. You could use something else instead, for example a java.nio.ByteBuffer, which has a fixed size.