CS 18000 Chapter Notes - Chapter 20: Internet Protocol Suite, Terminal Emulator
13 Jul 2016
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Document Summary
Identifies hosts (servers, workstations, laptops) with a unique address. Identifies ports on hosts for a network connection. A server is a process that waits for a connection. A client is a process that connects to a server. Low-valued port numbers are reserved for privileged processes. Java objects can also be exchanged over network connections. Used by server to wait for a client to connect. Server must be able to communicate with all clients simultaneously no blocking. Server creates a separate thread to handle each client as it connects. Client and server may also each create separate thread for reading and writing. Uses standard file i/o classes: low-level, high-level, object, and text. Socket abstracts a tcp socket (ip address + port) Uses thread to improve responsiveness and avoid blocking. The user drives the program to do things in his/her desired order. Attempting to create a gui results in headlessexception.
