This presentation introduces a multi-user chat application. It discusses TCP, clients, servers, ports, and sockets. The basic diagram shows a chat server connecting multiple clients. The process has a client connecting to a server via a port. Implementation in Java uses sockets requiring a hostname/IP and port to open a connection. Streams are used to send and receive data between clients and server. Advantages include unique user names and requiring multiple users. Disadvantages are inability to handle crashes and single server point of failure. Future plans include video chat, improved security, and recovery systems. Any questions are welcome.
The document describes a chat server application built using Java sockets. It includes a client and server component that allow users to login and send messages to each other. The server uses multithreading to handle multiple client connections concurrently by passing accepted socket connections to separate thread objects. The chat server provides group and private messaging capabilities and could be expanded in the future to include additional features like offline messaging, file sharing, and a user profile database.
This presentation introduces a multi-user chat application. It discusses TCP, clients, servers, ports, and sockets. The basic diagram shows a chat server connecting multiple clients. The process has a client connecting to a server via a port. Implementation in Java uses sockets requiring a hostname/IP and port to open a connection. Streams are used to send and receive data between clients and server. Advantages include unique user names and requiring multiple users. Disadvantages are inability to handle crashes and single server point of failure. Future plans include video chat, improved security, and recovery systems. Any questions are welcome.
The document describes a chat server application built using Java sockets. It includes a client and server component that allow users to login and send messages to each other. The server uses multithreading to handle multiple client connections concurrently by passing accepted socket connections to separate thread objects. The chat server provides group and private messaging capabilities and could be expanded in the future to include additional features like offline messaging, file sharing, and a user profile database.
This document describes a chat application project that allows users to communicate in real-time. It includes a client application that runs on users' PCs and a server application. The client connects to the server to chat. The document outlines the hardware requirements, software specifications including Java, HTML, Oracle 10g, and Netbeans. It provides diagrams of the database design and data flow. Screenshots illustrate the login process, registration, and messaging interfaces. Future enhancements could include file sharing and voice chat capabilities.
The document describes how to create a multi-user chat system using Java sockets where multiple client machines can connect to a dedicated server to communicate, with the server listening on a port for incoming connections from clients and handling each connection in a separate thread to allow simultaneous communication between multiple clients. Socket programming uses client and server sockets to connect the clients to the server and allow transmission of messages between clients via the server.
This document summarizes a Java-based chat application created by DVS Technologies. It discusses what chatting and chat applications are, how they allow real-time communication, and how they are used on websites and mobile devices. It then explains the technical details of how sockets allow for two-way communication between client and server programs by binding to specific port numbers, allowing the server to listen for connection requests and the client to identify the server to connect to. Diagrams demonstrate how a port scanner can find the port a chat server is listening on so the client can connect and authenticate with the server.
The document presents a project report on developing a Live Chat application. It includes an introduction, organizational overview, proposed system details, and a system study. The proposed Live Chat system would allow users within an organization on a LAN to communicate in real-time through groups and private chats, addressing limitations of existing communication systems. The system study covers requirements, feasibility analysis, and hardware/software specifications for the client-server chat application.
The document describes a LAN chat server that allows for chatting, voice chat, file transfer, and a bulletin board between clients on a local network. It uses sockets and networking concepts in Java to allow a server to communicate with multiple clients simultaneously through separate connections on the same port. The server forms sockets to clients, receives and forwards data between clients in loops, and uses streams to transfer various types of data between the client and server communication channels.
This document provides a project report for a chat application. It includes sections on certificates, acknowledgements, table of contents, introduction, system analysis, system specification, software architecture, system design details, and testing. The project aims to develop a chat application that allows users connected over a network to communicate via text in both public and private chat modes, with security measures for private chats. It provides specifications for the hardware, software, modules, and testing objectives of the chat application.
Python type hints allow annotating function and variable types in Python code. They were introduced in PEP 484 for Python 3.5 and provide documentation of types without runtime enforcement. Using type hints and tools like mypy enables type checking of code without execution, improving code quality and readability. They help with code completion, refactoring Python 2 code to Python 3, and catching type errors during development.
The document discusses a presentation on the benefits of type hints in Python. It provides an outline of the presentation which includes an introduction to type hints, how to use type hints, and the benefits of type hints. Some key benefits mentioned are improved code completion, the ability to catch type errors without running code, and using type hint tools for static type analysis.
Build a RESTful API with the Serverless Frameworkmasahitojp
The document discusses how to build a RESTful API using the Serverless framework on AWS. It introduces the Amazon API Gateway for creating API endpoints and AWS Lambda for hosting backend functions. The Serverless framework simplifies deploying Lambda functions by packaging code and dependencies, testing functions locally, and deploying with a single command. It also addresses challenges like installing Python libraries and supporting non-Python modules through Docker.
The document discusses using Python with AWS Lambda. It introduces serverless frameworks like AWS Lambda, Google Cloud Functions, and Microsoft Azure Functions. It then focuses on using Python with AWS Lambda, including how to package dependencies, deploy code, and leverage the Serverless framework to simplify deployments. Logging to CloudWatch Logs and adding unit tests are also covered.
The speaker discussed the benefits of type hints in Python. Type hints allow specifying the expected types of function parameters and return values, improving code readability, enabling code completion in editors, and allowing static type checking tools to analyze the code for type errors. The speaker demonstrated how to write type hints according to PEP 484 and PEP 526 standards and how to retrieve type information. Tools like Mypy were presented for doing static type analysis to catch errors. Using type hints and type checkers in continuous integration was recommended to catch errors early when collaborating on projects. The speaker concluded by explaining how using type hints made it easier for their team to port code from Python 2 to Python 3.
Pyston is a JIT-based implementation of Python 2.7 built using LLVM. It compiles Python code to LLVM IR for optimization and execution via LLVM's JIT engine. Current benchmarks show recursion sees benefits from LLVM JIT, while loops do not, and the implementation is missing major parts of the Python language. Future versions aim to add exceptions, classes, arguments and more.
This document discusses Play! Scala, a framework that allows building web applications in Scala on the Play! platform. It can use Scala instead of Java for the Play! framework. Anorm is used to interact with databases instead of JPA/Hibernate. Play! Scala applications can be deployed to PaaS platforms like Heroku and CloudBees. The document provides links for documentation, mailing lists and the GitHub repository for further information.