Network Programming with Java Sockets

Learn to build a Java UDP server using sockets by binding a datagram socket to a port, then listening for datagrams, extracting the payload and source IP.

Implement a UDP client in Java by building and sending datagrams to a server, specifying host and port, handling buffers and message length, and processing server responses.

Learn to implement a UDP server that receives client messages, builds datagram responses, and sends an acknowledgement back to the client using the UDP protocol.

Explore how a TCP server establishes a connection using a three-way handshake, listens for client requests, and exchanges messages through input and output streams in a Java socket setup.

Learn to implement a TCP client in Java using the socket class, connect to a hostname and port, send messages via streams, and handle line termination and disconnections.

A Java socket server reads client messages via the socket input stream using a buffered reader, sends an acknowledgment back, and lays groundwork for object exchanges in future lectures.

Explore object serialization in Java sockets by transferring employee and date objects between client and server via object streams, saving state to a file, and adding delays to ensure delivery.

Demonstrate how a single-threaded server handles multiple client connections, exposing increasing response times and connection failures, and illustrate the need for multi-threading in Java sockets.

Investigate reusing a single socket to handle multiple messages in a single threaded server, improving response time, while noting that growing requests require an SLA to support concurrency.

Build a multi-threaded server in Java sockets by implementing Runnable, handling client connections concurrently to improve scalability and meet fast response times under load.

Multicast uses datagrams to deliver to a group with lower latency and no guaranteed delivery, unlike unicast or broadcast. It relies on group membership and multicast addresses.

This lecture demonstrates implementing a multicast publisher in Java sockets, sending data to an IP multicast group for receivers and subscribers, with time-to-live settings to control forwarding.

Join a multicast group as a subscriber to receive datagrams from a publisher, and print packet details such as sender ip address, port, and length.

Explore the fundamentals of network programming with Java sockets, detailing client–server communication, data flow, and parallel and serial communication, plus underlying concepts like address resolution, switches, and routers.

Learn how a network interface card enables a computer to connect to a network, with gigabit Ethernet, MAC and IP addresses, plug-and-play recognition, and serial vs parallel data transmission.

Explore how serial and parallel ports transmit data one byte at a time and connect devices such as printers, highlighting male and female connectors and the shift to faster interfaces.

Explore how computer buses carry data between processor, memory, and peripherals via address, data, and control buses. Examine serial and parallel ports, expansion buses, and PCI/PCIe slots for plug-and-play devices.