Streams, read and write

[maxim]

Hi everybody and HAPPY NEW JEAHR!

I have a simple question:

I have a InputStream (e.g from a socket) and I read from the stream:

InpuStream is = socket.getInputStream();

byte[] buffer = new byte[8];

// I want to read 8 bytes
is.read(buffer);

// and so on ...

My question is:
If I read 8 bytes, are these 8 bytes REMOVED from the InputStream, or is there a pointer only, that will by moved to the first byte, that will be read by the next read-action (in my case to the 9th byte)? And, if the bytes will be not removed, is there a possibility to empty the InputStream (whithout closing the stream)?

Thanks.

 

[bygones]

the bytes are not directly removed, I think its more like a pointer which is moved by the number of bytes you read.

Why you want to empty the InputStream ?

 

[maxim]

the bytes are not directly removed, I think its more like a pointer which is moved by the number of bytes you read.

And, what happen, if the data has not been read befor the next data package arrive? Does the next data package overwrite the existing data, that has not been read? And, is the InputStream-buffer somthing like a ring-buffer?