About buffer read

hi, I am new to the java.io and had a question about

reading certain bytes into a buffer.

DataInputStream in;

Byte buffer[] = new byte[MAX_BUFFER];

in.read(buffer);

Here I have to predefine MAX_BUFFER in order to

read from a stream, can I know the size of the input

in advance of actually reading.

Thx

Pat

[373 byte] By [pwang2000] at [2007-9-26 2:55:50]