A Simple Server

Before we turn our attention to the Color Belot program, we need to learn the Java mechanisms that support communications between a server and a client.  In today's lesson, you should read and understand the code necessary to support a simple server.  The simple server allows any number of clients to connect to it.   When a client sends the server a message, the server broadcasts the message to all of the clients it is currently serving, including the client that sent the message.