Java APIs

Hi there

I writing a application which is including a server and a client based on TCP.

server:

socket = serverSokcet.accept();
OutputStream out = new BufferedOutputStream(socket.getInputStream());
InputStream file = new FileInputStream("someFile.jpg");   //   the file is more than 100KB

int c = file.read();
while(c > -1){
    out.write(c);
    c = file.read();
}

out.flush();
socket.close();
file.close();

Client:

OutputStream out = new BufferedOutputStream(socekt.getOutputStream());     // the socket has connected the server
out.write("someLine".getBytes());  //   becouse the server never read from the client ,so these bytes would be lost

InputStream in = socket.getInputStream();
OutputStream anotherFile = new FileOutputStream("anotherFile");
int c = in.read();
while(c > -1){
    anotherFile.write(c);
    c = in.read();            //   this line will throw the java.net.SocketException: Connection reset after receive some bytes from the servre!
                                  //    if I the client dosen't send any data to the server, the Exception will go away
}

sokcet.close()
anotherFile.close();

Why java.net.SocketException? Isn't TCP/IP of Duplex Separation?