Setting source port on a Java Socket?

Question

I\'m very new to socket programming:

Is it possible to explicitly set the the source port on a Java Socket?

I am working on a client/server application in which

Answer 1

It usually goes like this:

First, the Server opens a ServerSocket on a well known port and waits for input.

Meanwhile the Client opens a (client) Socket with the servers hostname and this well known port address. It sends a request message to the server to initialize a communication session.

The server receives the message, spawns a worker thread, which opens another ServerSocket on a different port and the server sends a response, where it tells the client this port number.

Now the client closes the actual connection and creates a new Socket, now with the port number he has just been told.

This way, the server can handle more then one client at a time, because each client gets his individual 'connection' (port).