The document discusses the URL class in Java. It defines a URL as a unique string that identifies resources on the internet. It explains that the Java URL class represents URLs and manages their details. Key methods of the URL class allow retrieving different parts of a URL like the protocol, host, path, and file. The URLConnection class establishes a connection between an application and a URL to read/write data from the resource.
The document discusses the URL class in Java, including its hierarchy, main methods, and examples of using it to retrieve remote files and view HTML pages. The URL class represents a Uniform Resource Locator and allows manipulating URLs. It has methods like openStream() to connect to a URL and retrieve its contents as an input stream. For example, an applet can use a URL object to read files from a web server and display HTML pages by opening an HTTP connection.
The document discusses how to retrieve and process information from remote resources using URLs and URLConnections in Java. It explains that the URL class can be used to open a stream and read the contents of a remote resource directly, while URLConnection provides more control by allowing you to get header information and set request properties before retrieving the stream. It also summarizes the key methods of the URL and URLConnection classes for establishing connections and accessing remote resources and data.
The document discusses how to retrieve and process information from remote URLs using the URL and URLConnection classes in Java. It provides examples of opening a URLConnection, reading response headers, and getting input streams to access the resource content. Key methods like openConnection(), getInputStream(), getHeaderFields() are explained.
The document discusses networking concepts in Java like InetAddress, URL, and URLConnection. It provides code examples to look up the IP address and hostname for a given URL, get details of a URL like protocol, port number etc., and retrieve content from a URLConnection. It explains how to use these classes to work with network resources in Java programs.
This document summarizes key topics related to networking in Java, including:
1) Stream sockets provide connection-oriented communication while datagram sockets provide connectionless communication using UDP.
2) URLs can be manipulated in Java by converting them to URLs and using showDocument() to display webpages.
3) Files on a web server can be read using JEditorPane and handling hyperlink clicks, displaying the contents.
4) Simple client-server applications can be created using stream sockets by establishing connections, getting input/output streams, processing data, and closing connections.
TCP sockets allow for communication between applications over the internet. A server creates a ServerSocket to listen for incoming connections on a specific port. When a client connects, the server accepts the connection to get a Socket. Both client and server then obtain input and output streams from the Socket to send and receive data. The connection is closed once communication is complete. Multithreading allows servers to handle multiple clients concurrently by spawning a new thread for each connection.
TCP is a connection-based protocol that provides reliable data transfer between computers. It is based on a four-layer model and provides ordered, error-free transmission of data through features like flow control and congestion control. Java's java.net package supports system-independent network communication. URLs identify Internet resources and have a standardized syntax consisting of parts like the protocol, host, port, and file name. Sockets represent endpoints for two-way communication between programs over a network, while server sockets listen for and accept client connections on a specific port. UDP is a lightweight alternative to TCP that is faster but unreliable and unordered.
The document discusses the URL class in Java, including its hierarchy, main methods, and examples of using it to retrieve remote files and view HTML pages. The URL class represents a Uniform Resource Locator and allows manipulating URLs. It has methods like openStream() to connect to a URL and retrieve its contents as an input stream. For example, an applet can use a URL object to read files from a web server and display HTML pages by opening an HTTP connection.
The document discusses how to retrieve and process information from remote resources using URLs and URLConnections in Java. It explains that the URL class can be used to open a stream and read the contents of a remote resource directly, while URLConnection provides more control by allowing you to get header information and set request properties before retrieving the stream. It also summarizes the key methods of the URL and URLConnection classes for establishing connections and accessing remote resources and data.
The document discusses how to retrieve and process information from remote URLs using the URL and URLConnection classes in Java. It provides examples of opening a URLConnection, reading response headers, and getting input streams to access the resource content. Key methods like openConnection(), getInputStream(), getHeaderFields() are explained.
The document discusses networking concepts in Java like InetAddress, URL, and URLConnection. It provides code examples to look up the IP address and hostname for a given URL, get details of a URL like protocol, port number etc., and retrieve content from a URLConnection. It explains how to use these classes to work with network resources in Java programs.
This document summarizes key topics related to networking in Java, including:
1) Stream sockets provide connection-oriented communication while datagram sockets provide connectionless communication using UDP.
2) URLs can be manipulated in Java by converting them to URLs and using showDocument() to display webpages.
3) Files on a web server can be read using JEditorPane and handling hyperlink clicks, displaying the contents.
4) Simple client-server applications can be created using stream sockets by establishing connections, getting input/output streams, processing data, and closing connections.
TCP sockets allow for communication between applications over the internet. A server creates a ServerSocket to listen for incoming connections on a specific port. When a client connects, the server accepts the connection to get a Socket. Both client and server then obtain input and output streams from the Socket to send and receive data. The connection is closed once communication is complete. Multithreading allows servers to handle multiple clients concurrently by spawning a new thread for each connection.
TCP is a connection-based protocol that provides reliable data transfer between computers. It is based on a four-layer model and provides ordered, error-free transmission of data through features like flow control and congestion control. Java's java.net package supports system-independent network communication. URLs identify Internet resources and have a standardized syntax consisting of parts like the protocol, host, port, and file name. Sockets represent endpoints for two-way communication between programs over a network, while server sockets listen for and accept client connections on a specific port. UDP is a lightweight alternative to TCP that is faster but unreliable and unordered.
The document provides an overview of networking basics including definitions of key terms like network, client, server, hardware, software, and protocol requirements for establishing a network. It discusses IP addressing and the domain name system (DNS). It also introduces socket programming and provides examples of common network applications like email, online shopping, browsing, chatting, downloading files, and online meetings. The remainder of the document discusses the Java networking package and divides it into application layer classes that handle URIs, URLs, and connections, and transport layer classes that support TCP and UDP networking.
The document discusses how to programmatically make URL requests in Java. It covers using the URL and URLConnection classes to (1) parse URLs, (2) retrieve URL contents by opening connections or streams, and (3) get header information. It also provides examples of how to fake GET and POST form submissions by encoding parameters and sending requests via URLConnection.
Java networking allows connecting computing devices to share resources using sockets and protocols. Key concepts include IP addresses and port numbers to identify devices, connection-oriented protocols like TCP for reliability, and connectionless protocols like UDP for speed. The Socket class represents an endpoint for communication between applications, while the ServerSocket class allows creating a server to accept client connections. URL and URI classes handle uniform resource locators and identifiers to access resources on the internet.
The document provides an overview of AJAX and web services. It discusses AJAX architecture and how it uses XMLHttpRequest objects to asynchronously exchange data with web servers without reloading pages. It also covers web services, describing them as software modules that can be published, located, and invoked over a network to perform tasks. The key components of web services are defined as SOAP, WSDL, and UDDI, which handle messaging, description, and discovery.
The Django Book / Chapter 3: Views and URLconfsVincent Chien
This document summarizes key points from Chapter 3 of the Django Book about views and URLconfs in Django. It discusses that views are Python functions that take a request object and return an HttpResponse, and URLconfs are used to map URLs to their corresponding views. It provides an example of a basic "Hello World" view and URLconf configuration. It also explains how Django processes requests by matching the URL to patterns in the URLconf and calling the associated view function.
This document describes the steps to create a simple CORBA application in Java, including:
1) Creating an IDL file defining the interface.
2) Compiling the IDL file to generate stub and skeleton files.
3) Implementing the interface as a "servant" class.
4) Creating a server that initializes the ORB, connects the servant, and binds it to the naming service.
5) The server waits for client calls by waiting on a synchronization object.
Lambda Chops - Recipes for Simpler, More Expressive CodeIan Robertson
While the new Streams API has been a great showcase for lambda methods, there are many other ways this new language feature can be used to make friendlier APIs and more expressive code. Lambdas can be used for a number of tasks which historically required significant boilerplate, type-unsafe constructs, or both. From new ways to express metedata, to emulating Groovy's null-safe navigation operator, we'll take a look at a myriad of ways, big and small, that you can use lambdas to improve APIs and streamline your code. We'll also look at some of the limitations of lambdas, and some techniques for overcoming them.
Jsoup is a Java library for parsing HTML documents and extracting data from them. It provides convenient methods for parsing HTML files and URLs into Documents, and then using DOM, CSS, and jQuery-like methods to extract and manipulate data from those Documents. Examples show how to use Jsoup to get the title of a URL or HTML file, retrieve all links or images from a page, and extract form parameters from HTML.
The document discusses several advanced Java techniques including data structures, networking using sockets, and reflection. It provides examples of using a Hashtable to store key-value pairs, describes how sockets allow for network communication between clients and servers by establishing connections, and explains how reflection allows determining information about classes at runtime such as their fields and methods.
The document discusses new features in Swift 2.0 including checking API availability, synthesized headers, protocol extensions, error handling improvements, and more. It provides code examples for checking API availability using #available, generating synthesized headers, using protocol extensions to provide default implementations, and the new try/catch syntax for error handling.
Start developing for the Semantic Web with JAVA. This is an introduction how to tap into your linked data, open linked data and create flexible useful applications.
The document discusses Uniform Resource Locators (URLs) in Java. It defines a URL as a unique identifier used to locate resources on the internet. URLs consist of several components including the protocol, domain name, path, parameters and fragment. It provides examples of URLs and explains how to construct URL objects in Java programs from strings containing the URL address.
1. The document describes how to build an image gallery using an Android GridView. It involves adding a GridView to the layout, defining the grid item layout with an ImageView and TextView, creating a GridView adapter, setting the adapter, and handling clicks to open a detail activity.
2. Key aspects are using a GridView with attributes like numColumns, stretchMode, and verticalSpacing, and an adapter to populate each grid item from data. Clicking a grid item navigates to a details page.
3. The example builds the UI, handles clicks, and customizes the GridView style to display images and text in a grid.
The document discusses the Generic Connection Framework (GCF) in Java ME, which defines interfaces for network connections on CLDC platforms. GCF includes interfaces for stream-based, datagram-based, and content-based connections. Example implementations are provided for HTTP, TCP sockets, UDP datagrams, serial communications, and more.
The document discusses various methods for connecting to a network and downloading content in Android, including checking network connectivity, performing long operations off the main thread using AsyncTask, downloading content from URLs, and considerations around using HttpClient versus HttpURLConnection. It provides code examples for tasks like retrieving the device IP address, disabling HTTP connection reuse, and handling gzip encoding.
This document discusses client-server connections for a library application. It provides code for a CustomHttpClient class that defines methods for performing HTTP GET and POST requests. This includes setting connection timeout parameters. It also provides code for connecting to a MySQL database and inserting login credentials and book borrowing history. The code samples show how to connect between the client and server and interface with the backend database.
The document summarizes key aspects of server-side ASP.NET including the page, session, application, cache, request, response, and server objects. It describes properties and methods of the server, request, and response objects that provide information and functionality for server-side processing like accessing headers, cookies, files and performing redirects. Examples of properties and methods are given for each object to illustrate their usage.
This document discusses IoT security. It begins by defining IoT security as protecting IoT systems, servers, networks, and devices. It then explains that IoT security is needed because IoT devices collect and store valuable data, making the systems vulnerable. The document outlines several challenges facing IoT systems, such as unpredictable device behavior, similar device designs, and lack of alerts. It also discusses threats like malware, information theft, and vulnerabilities. Finally, the document provides recommendations for improving IoT security, including encryption, updates, and network access control.
- Java frameworks are libraries of pre-written code that make developing Java applications easier and more efficient. They provide tools, functions, and libraries to develop different application components.
- Using frameworks can significantly reduce development time and effort by reusing pre-written code rather than writing everything from scratch. This improves quality and reduces errors.
- There are different types of Java frameworks, including full-stack frameworks for complex enterprise applications, micro frameworks for simple applications, and non-web frameworks for standalone applications. Developers must choose the right framework based on their specific project needs.
The document provides an overview of networking basics including definitions of key terms like network, client, server, hardware, software, and protocol requirements for establishing a network. It discusses IP addressing and the domain name system (DNS). It also introduces socket programming and provides examples of common network applications like email, online shopping, browsing, chatting, downloading files, and online meetings. The remainder of the document discusses the Java networking package and divides it into application layer classes that handle URIs, URLs, and connections, and transport layer classes that support TCP and UDP networking.
The document discusses how to programmatically make URL requests in Java. It covers using the URL and URLConnection classes to (1) parse URLs, (2) retrieve URL contents by opening connections or streams, and (3) get header information. It also provides examples of how to fake GET and POST form submissions by encoding parameters and sending requests via URLConnection.
Java networking allows connecting computing devices to share resources using sockets and protocols. Key concepts include IP addresses and port numbers to identify devices, connection-oriented protocols like TCP for reliability, and connectionless protocols like UDP for speed. The Socket class represents an endpoint for communication between applications, while the ServerSocket class allows creating a server to accept client connections. URL and URI classes handle uniform resource locators and identifiers to access resources on the internet.
The document provides an overview of AJAX and web services. It discusses AJAX architecture and how it uses XMLHttpRequest objects to asynchronously exchange data with web servers without reloading pages. It also covers web services, describing them as software modules that can be published, located, and invoked over a network to perform tasks. The key components of web services are defined as SOAP, WSDL, and UDDI, which handle messaging, description, and discovery.
The Django Book / Chapter 3: Views and URLconfsVincent Chien
This document summarizes key points from Chapter 3 of the Django Book about views and URLconfs in Django. It discusses that views are Python functions that take a request object and return an HttpResponse, and URLconfs are used to map URLs to their corresponding views. It provides an example of a basic "Hello World" view and URLconf configuration. It also explains how Django processes requests by matching the URL to patterns in the URLconf and calling the associated view function.
This document describes the steps to create a simple CORBA application in Java, including:
1) Creating an IDL file defining the interface.
2) Compiling the IDL file to generate stub and skeleton files.
3) Implementing the interface as a "servant" class.
4) Creating a server that initializes the ORB, connects the servant, and binds it to the naming service.
5) The server waits for client calls by waiting on a synchronization object.
Lambda Chops - Recipes for Simpler, More Expressive CodeIan Robertson
While the new Streams API has been a great showcase for lambda methods, there are many other ways this new language feature can be used to make friendlier APIs and more expressive code. Lambdas can be used for a number of tasks which historically required significant boilerplate, type-unsafe constructs, or both. From new ways to express metedata, to emulating Groovy's null-safe navigation operator, we'll take a look at a myriad of ways, big and small, that you can use lambdas to improve APIs and streamline your code. We'll also look at some of the limitations of lambdas, and some techniques for overcoming them.
Jsoup is a Java library for parsing HTML documents and extracting data from them. It provides convenient methods for parsing HTML files and URLs into Documents, and then using DOM, CSS, and jQuery-like methods to extract and manipulate data from those Documents. Examples show how to use Jsoup to get the title of a URL or HTML file, retrieve all links or images from a page, and extract form parameters from HTML.
The document discusses several advanced Java techniques including data structures, networking using sockets, and reflection. It provides examples of using a Hashtable to store key-value pairs, describes how sockets allow for network communication between clients and servers by establishing connections, and explains how reflection allows determining information about classes at runtime such as their fields and methods.
The document discusses new features in Swift 2.0 including checking API availability, synthesized headers, protocol extensions, error handling improvements, and more. It provides code examples for checking API availability using #available, generating synthesized headers, using protocol extensions to provide default implementations, and the new try/catch syntax for error handling.
Start developing for the Semantic Web with JAVA. This is an introduction how to tap into your linked data, open linked data and create flexible useful applications.
The document discusses Uniform Resource Locators (URLs) in Java. It defines a URL as a unique identifier used to locate resources on the internet. URLs consist of several components including the protocol, domain name, path, parameters and fragment. It provides examples of URLs and explains how to construct URL objects in Java programs from strings containing the URL address.
1. The document describes how to build an image gallery using an Android GridView. It involves adding a GridView to the layout, defining the grid item layout with an ImageView and TextView, creating a GridView adapter, setting the adapter, and handling clicks to open a detail activity.
2. Key aspects are using a GridView with attributes like numColumns, stretchMode, and verticalSpacing, and an adapter to populate each grid item from data. Clicking a grid item navigates to a details page.
3. The example builds the UI, handles clicks, and customizes the GridView style to display images and text in a grid.
The document discusses the Generic Connection Framework (GCF) in Java ME, which defines interfaces for network connections on CLDC platforms. GCF includes interfaces for stream-based, datagram-based, and content-based connections. Example implementations are provided for HTTP, TCP sockets, UDP datagrams, serial communications, and more.
The document discusses various methods for connecting to a network and downloading content in Android, including checking network connectivity, performing long operations off the main thread using AsyncTask, downloading content from URLs, and considerations around using HttpClient versus HttpURLConnection. It provides code examples for tasks like retrieving the device IP address, disabling HTTP connection reuse, and handling gzip encoding.
This document discusses client-server connections for a library application. It provides code for a CustomHttpClient class that defines methods for performing HTTP GET and POST requests. This includes setting connection timeout parameters. It also provides code for connecting to a MySQL database and inserting login credentials and book borrowing history. The code samples show how to connect between the client and server and interface with the backend database.
The document summarizes key aspects of server-side ASP.NET including the page, session, application, cache, request, response, and server objects. It describes properties and methods of the server, request, and response objects that provide information and functionality for server-side processing like accessing headers, cookies, files and performing redirects. Examples of properties and methods are given for each object to illustrate their usage.
This document discusses IoT security. It begins by defining IoT security as protecting IoT systems, servers, networks, and devices. It then explains that IoT security is needed because IoT devices collect and store valuable data, making the systems vulnerable. The document outlines several challenges facing IoT systems, such as unpredictable device behavior, similar device designs, and lack of alerts. It also discusses threats like malware, information theft, and vulnerabilities. Finally, the document provides recommendations for improving IoT security, including encryption, updates, and network access control.
- Java frameworks are libraries of pre-written code that make developing Java applications easier and more efficient. They provide tools, functions, and libraries to develop different application components.
- Using frameworks can significantly reduce development time and effort by reusing pre-written code rather than writing everything from scratch. This improves quality and reduces errors.
- There are different types of Java frameworks, including full-stack frameworks for complex enterprise applications, micro frameworks for simple applications, and non-web frameworks for standalone applications. Developers must choose the right framework based on their specific project needs.
Numpy ndarrays are n-dimensional, homogeneous arrays that provide an efficient way to store and manipulate large multi-dimensional datasets. They are the fundamental data structure in NumPy that enables working with homogeneous data. An ndarray is created with a shape that defines its dimensions and a data type that specifies the type of data elements. It supports common operations like arithmetic, indexing/slicing, aggregation, reshaping and transposing. NumPy ndarrays are an essential tool for numerical computing and data analysis in Python.
The document discusses float and double data types in C programming. Floats use 4 bytes of memory to store numbers with a decimal point with about 6-9 digits of precision, while doubles use 8 bytes for about 15 digits of precision, making them more suitable for complex calculations. Examples are given showing how to declare and use float and double variables to calculate exam score averages. Key differences between floats and doubles are outlined. Derived data types are also introduced, which build upon primitive types to create more complex data structures like arrays, structs, unions, and enums.
IoT Hardware – The Backbone of Smart Devices.pdfSudhanshiBakre1
The document discusses IoT hardware and provides an overview of 7 popular hardware platforms: Raspberry Pi, Arduino, Pycom, Particle, SODAQ, Adafruit, and SparkFun. It compares each platform across connectivity options, power management capabilities, storage features, and methods for data acquisition. Key details about popular board versions for each platform are also provided.
Contiki is an open-source operating system designed for Internet of Things devices like sensors and microcontrollers. It has communication components like uIP and 6LoWPAN that allow low-power devices to connect to the internet. Contiki also supports dynamic module loading, process and memory management, file systems, and includes the Cooja network simulator.
Abstract classes in Java are used as templates for creating concrete classes and cannot be instantiated directly. They provide a common interface and implementation for subclasses through abstract and concrete methods. For example, an abstract Shape class can define methods like getColor() while making getArea() abstract, requiring subclasses like Circle to implement it. Abstract classes allow for code reuse and polymorphism, serving as a blueprint for related classes to customize as needed.
The document discusses how to connect a Node.js application to a MySQL database. It covers setting up the environment, initializing a project, installing dependencies, creating a database, establishing a connection, handling environment variables, performing CRUD operations, handling errors, and calling stored procedures. Code examples are provided for each step to demonstrate how to connect Node.js to MySQL and execute queries to retrieve, add, update and delete data.
Collections in Python - Where Data Finds Its Perfect Home.pdfSudhanshiBakre1
The document discusses the Python collections module which provides alternative data structures to Python's built-in lists, dictionaries, and tuples. It contains optimized container types like Counter, OrderedDict, defaultdict, deque, namedtuple, and ChainMap. Each type is designed for specific use cases and provides functionality beyond the built-in structures. The document provides examples and explanations of when each collection type would be useful.
This document discusses file handling in Java. It begins by explaining that a file stores related information together and describes standard input, output, and error streams in Java which represent System.in, System.out, and System.err. It then discusses input and output streams in Java, describing how to create them and common methods. It also covers the Java File class and common file operations like creating, reading from, writing to, and deleting files.
The document discusses different types of artificial intelligence (AI) based on their capabilities and functionalities. It describes narrow AI, general AI, and super AI based on capabilities, with narrow AI only able to perform limited tasks, general AI able to reason like humans, and super AI surpassing human abilities. It also outlines reactive machines, limited theory AI with memory, theory of mind AI, and self-aware AI based on functionalities and levels of human-like cognition. The document provides examples and applications of different AI types.
Streams are used in Node.js to efficiently process large amounts of data. There are four types of streams: readable, writable, duplex, and transform. Readable streams are used to read data from a source, writable streams write to a destination, duplex streams both read and write, and transform streams modify data as it flows through. Streams allow data to be processed sequentially in chunks rather than all at once, making them useful for large datasets and network connections.
Annotations in Java provide metadata that can be used by compilers and runtime environments to process code in different ways. Common built-in annotations include @Override, @SuppressWarnings, and @Deprecated. User-defined annotations can also be created. Annotations do not affect code execution but provide supplemental information used by tools and libraries. Common annotation types are marker, single-value, multi-value, type, and repeating annotations. Annotations can be used to provide instructions to compilers, for compile-time processing, and at runtime via reflection.
The document discusses RESTful API development in Node.js. It covers fundamentals like HTTP methods, resource design, authentication and error handling. It provides a code example of a RESTful API for a library with endpoints for getting, adding, updating and deleting books from the library collection. The API uses Express.js and adheres to REST principles by utilizing HTTP methods on resources identified by URLs.
This document provides a summary of the top 12 cryptocurrency exchanges of 2023. It examines each exchange's unique qualities, security measures, trading features, and their potential to influence the cryptocurrency market. The exchanges highlighted are Binance, Coinbase, Kraken, Bittrex, Bitfinex, Huobi, KuCoin, OKEx, Gemini, Bybit, Poloniex, and Bitstamp. Each exchange caters to different trader experience levels and provides services like spot trading, margin trading and secure storage of digital assets.
Methods in Python are functions that are associated with an object or class. They can access and modify the object's attributes and are invoked using dot notation. Functions are independent blocks of code that can accept inputs, perform computations, and return results without being tied to a specific object. The key differences are that methods are associated with objects, can access object attributes, and modify object state, while functions are standalone, cannot access object attributes directly, and are not associated with a particular object. [/SUMMARY]
Django Tutorial_ Let’s take a deep dive into Django’s web framework.pdfSudhanshiBakre1
This document provides an in-depth overview of the Django web framework. It begins by defining Django and explaining why it is useful for web development. It then covers Django's history, architecture using the MTV/MVC models, features, popularity and common use cases. The document also discusses Django's opinionation, prerequisites, and provides code examples to illustrate how a basic Django application is structured.
The document discusses the benefits of Salesforce IoT cloud, including enhancing sales operations, improving customer experience, providing advanced analytics capabilities, and automating tasks. It outlines 15 specific benefits such as improving customer referrals, increasing efficiency, and enhancing R&D activities. The Salesforce IoT cloud integrates data from IoT devices to provide insights and automate processes to improve customer service and business operations.
Epic Python Face-Off -Methods vs. Functions.pdfSudhanshiBakre1
This document explores the differences between methods and functions in Python. Methods are functions that are associated with an object or class, can access and modify object attributes, and are invoked using dot notation. Functions are independent blocks of code that are not tied to objects, cannot access object attributes directly, and are invoked by name. Key differences are that methods are associated with objects while functions are not, methods can modify object state but functions cannot, and methods belong to a class namespace while functions have their own. Examples are provided to illustrate method and function syntax and usage.
Python classes allow for the creation of object-oriented programming through defining blueprints for objects with shared attributes and behaviors. Classes are created using the class keyword and contain attributes like variables and methods like functions. Objects are instantiated from classes and can access both class level and instance level attributes. Key concepts covered include inheritance, encapsulation, polymorphism, and special methods.
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdfChart Kalyan
A Mix Chart displays historical data of numbers in a graphical or tabular form. The Kalyan Rajdhani Mix Chart specifically shows the results of a sequence of numbers over different periods.
Building Production Ready Search Pipelines with Spark and MilvusZilliz
Spark is the widely used ETL tool for processing, indexing and ingesting data to serving stack for search. Milvus is the production-ready open-source vector database. In this talk we will show how to use Spark to process unstructured data to extract vector representations, and push the vectors to Milvus vector database for search serving.
Introduction of Cybersecurity with OSS at Code Europe 2024Hiroshi SHIBATA
I develop the Ruby programming language, RubyGems, and Bundler, which are package managers for Ruby. Today, I will introduce how to enhance the security of your application using open-source software (OSS) examples from Ruby and RubyGems.
The first topic is CVE (Common Vulnerabilities and Exposures). I have published CVEs many times. But what exactly is a CVE? I'll provide a basic understanding of CVEs and explain how to detect and handle vulnerabilities in OSS.
Next, let's discuss package managers. Package managers play a critical role in the OSS ecosystem. I'll explain how to manage library dependencies in your application.
I'll share insights into how the Ruby and RubyGems core team works to keep our ecosystem safe. By the end of this talk, you'll have a better understanding of how to safeguard your code.
TrustArc Webinar - 2024 Global Privacy SurveyTrustArc
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slackshyamraj55
Discover the seamless integration of RPA (Robotic Process Automation), COMPOSER, and APM with AWS IDP enhanced with Slack notifications. Explore how these technologies converge to streamline workflows, optimize performance, and ensure secure access, all while leveraging the power of AWS IDP and real-time communication via Slack notifications.
Project Management Semester Long Project - Acuityjpupo2018
Acuity is an innovative learning app designed to transform the way you engage with knowledge. Powered by AI technology, Acuity takes complex topics and distills them into concise, interactive summaries that are easy to read & understand. Whether you're exploring the depths of quantum mechanics or seeking insight into historical events, Acuity provides the key information you need without the burden of lengthy texts.
AI 101: An Introduction to the Basics and Impact of Artificial IntelligenceIndexBug
Imagine a world where machines not only perform tasks but also learn, adapt, and make decisions. This is the promise of Artificial Intelligence (AI), a technology that's not just enhancing our lives but revolutionizing entire industries.
Fueling AI with Great Data with Airbyte WebinarZilliz
This talk will focus on how to collect data from a variety of sources, leveraging this data for RAG and other GenAI use cases, and finally charting your course to productionalization.
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdfMalak Abu Hammad
Discover how MongoDB Atlas and vector search technology can revolutionize your application's search capabilities. This comprehensive presentation covers:
* What is Vector Search?
* Importance and benefits of vector search
* Practical use cases across various industries
* Step-by-step implementation guide
* Live demos with code snippets
* Enhancing LLM capabilities with vector search
* Best practices and optimization strategies
Perfect for developers, AI enthusiasts, and tech leaders. Learn how to leverage MongoDB Atlas to deliver highly relevant, context-aware search results, transforming your data retrieval process. Stay ahead in tech innovation and maximize the potential of your applications.
#MongoDB #VectorSearch #AI #SemanticSearch #TechInnovation #DataScience #LLM #MachineLearning #SearchTechnology
Salesforce Integration for Bonterra Impact Management (fka Social Solutions A...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on integration of Salesforce with Bonterra Impact Management.
Interested in deploying an integration with Salesforce for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Cosa hanno in comune un mattoncino Lego e la backdoor XZ?Speck&Tech
ABSTRACT: A prima vista, un mattoncino Lego e la backdoor XZ potrebbero avere in comune il fatto di essere entrambi blocchi di costruzione, o dipendenze di progetti creativi e software. La realtà è che un mattoncino Lego e il caso della backdoor XZ hanno molto di più di tutto ciò in comune.
Partecipate alla presentazione per immergervi in una storia di interoperabilità, standard e formati aperti, per poi discutere del ruolo importante che i contributori hanno in una comunità open source sostenibile.
BIO: Sostenitrice del software libero e dei formati standard e aperti. È stata un membro attivo dei progetti Fedora e openSUSE e ha co-fondato l'Associazione LibreItalia dove è stata coinvolta in diversi eventi, migrazioni e formazione relativi a LibreOffice. In precedenza ha lavorato a migrazioni e corsi di formazione su LibreOffice per diverse amministrazioni pubbliche e privati. Da gennaio 2020 lavora in SUSE come Software Release Engineer per Uyuni e SUSE Manager e quando non segue la sua passione per i computer e per Geeko coltiva la sua curiosità per l'astronomia (da cui deriva il suo nickname deneb_alpha).
Ivanti’s Patch Tuesday breakdown goes beyond patching your applications and brings you the intelligence and guidance needed to prioritize where to focus your attention first. Catch early analysis on our Ivanti blog, then join industry expert Chris Goettl for the Patch Tuesday Webinar Event. There we’ll do a deep dive into each of the bulletins and give guidance on the risks associated with the newly-identified vulnerabilities.
Webinar: Designing a schema for a Data WarehouseFederico Razzoli
Are you new to data warehouses (DWH)? Do you need to check whether your data warehouse follows the best practices for a good design? In both cases, this webinar is for you.
A data warehouse is a central relational database that contains all measurements about a business or an organisation. This data comes from a variety of heterogeneous data sources, which includes databases of any type that back the applications used by the company, data files exported by some applications, or APIs provided by internal or external services.
But designing a data warehouse correctly is a hard task, which requires gathering information about the business processes that need to be analysed in the first place. These processes must be translated into so-called star schemas, which means, denormalised databases where each table represents a dimension or facts.
We will discuss these topics:
- How to gather information about a business;
- Understanding dictionaries and how to identify business entities;
- Dimensions and facts;
- Setting a table granularity;
- Types of facts;
- Types of dimensions;
- Snowflakes and how to avoid them;
- Expanding existing dimensions and facts.
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved.
The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring.
The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
1. URL Class in Java
Anybody who uses the internet these days would have come across a URL. It is a
unique string of text that is an identity for the resources available on the internet. To
put it in simple words, a URL is an address for the resources that we can find on the
internet. This article explains the URL class in Java. Let’s start!!
What is a URL?
The term URL is an acronym for Uniform Resource Locator. It denotes a resource
that is present on the World Wide Web. This resource might be an HTML page, file,
or document that is present on the World Wide Web.
Segments of a URL:
Though a URL might consist of several components, it consists of three main parts.:
1. Protocol: In the above-given example, HTTP is the protocol. Some other
examples of protocols are HTTPS, FTP, and File.
2. Server name or IP address: The server machine where the resources are present
is denoted as the server’s name. Here, firstcode.com is the server name.
3. Filename: Here, the file name is “java-class-and-objects”.
4. Port number: Port number helps the URL connect with the web. In case of not
explicitly mentioning the URL, the default port number is used.
Java URL Class
2. The Java URL is the gateway to access any resource that is present on the web.
The object of the java.net.URL class denotes the URL and manages all the details
available in the URL string. This class consists of various methods to create an
object of the URL class.
S.No Constructor Description
1
URL(String address)
throwsMalformedURLException
It creates a URL object from the given
input String
2 URL(String protocol, String host, String file)
It creates a URL object from the input
protocol, host and file name.
3
URL(String protocol, String host, int port, String
file)
It creates a URL object from the
mentioned protocol, hostname, port
number and, file name.
4 URL(URL context, String spec)
It creates a URL object by passing the
String specifications that are given.
5
URL(String protocol, String host, int port, String
file, URLStreamHandler handler)
It creates a URL object from the given
protocol, hostname, port number, file,
and, handler.
6
URL(URL context, Strong spec,
URLStreamHandler handler)
It makes a URL by parsing the spec
with the input handler.
Methods of Java URL Class:
S.
N
Method Name Description
3. 1 public String toString() It returns the given URL object in the string form.
2 public String getPath()
It returns the path of the URL. It returns null if the URL is
empty.
3 public String getQuery()
It gives the query part of the URL. This part of the URL is
present after the ‘?’ in it.
4 public String getAuthority()
It returns the authority part of the URL. And it returns null
if it is empty.
5 public String getHost() It gives the hostname related to the URL in IPv6 format
6 public String getFile() It returns the filename of the URL.
7 public int getPort() It returns the port number of the URL.
8 public int getDefaultPort() It returns the default port number that the URL uses.
9 public String getRef()
It returns the reference to the URL object. This reference
is the part represented by ‘#’ in the URL.
10 public String getProtocol() It returns the protocol associated with the URL.
11 public String getAuthority()
It returns the authority of the URL. It collects the
hostname and the port.
12 public URL toURL() It returns a URL of the mentioned URL.
13
public URLConnection
OpenConnection()
It returns an instance of the URLConnection, connected
with the particular URL.
4. 14 public Object getContent()
It returns the content of the URL, and it is returned as an
Object.
Creating URL with Component Parts:
Let us now see how to create a URL using the SUL components like hostname,
filename, and protocol.
Sample code to create a URL with the URL components:
import java.net.MalformedURLException;
import java.net.URL;
public class URLClassDemo
{
public static void main(String[ ] args) throws MalformedURLException
{
String protocol = "http";
String host = "firstcode.com";
String file = "/courses/java-url-class/";
URL url = new URL(protocol, host, file);
System.out.println("The URL is: " +url.toString());
}
}
Output:
The URL is: http://firstcode.com/courses/java-url-class
5. Sample program to implement the URL Class of Java:
import java.net.MalformedURLException;
import java.net.URL;
public class URLClassDemo
{
public static void main(String[] args) throws MalformedURLException
{
URL url1 = new URL("https://firstcode.com/courses/java-encapsulation/");
System.out.println("url1 is: " +url1.toString());
System.out.println("nVarious components of the url1");
System.out.println("Protocol: " + url1.getProtocol());
System.out.println("Hostname: " + url1.getHost());
System.out.println("Port: " + url1.getPort());
System.out.println("Default port: " + url1.getDefaultPort());
System.out.println("Query: " + url1.getQuery());
System.out.println("Path: " + url1.getPath());
System.out.println("File: " + url1.getFile());
System.out.println("Reference: " + url1.getRef());
System.out.println("Authority: " + url1.getAuthority());
}
Output:
6. url1 is: https://firstcode.com/courses/java-encapsulation/Various components of the
url1
Protocol: https
Hostname: firstcode.com
Port: -1
Default port: 443
Query: null
Path: /courses/java-encapsulation/
File: /courses/java-encapsulation/
Reference: null
Authority: firstcode.com
URL Connection class in Java:
The URLConnection class in Java is important to represent a connection or
communication between an application and the URL. it helps the programmers to
read and write data to the given resource of the URL.
The java.net.URLConnection is an abstract class that has its subclasses
representing the different types of URL connections.
For example:
■ The openConnection() method returns the object of the
HttpURLConnection class. This takes place when we connect to a URL
using the HTTP protocol.
■ The openConnection() method returns the object of a JarURLConnection
class. this happens if we connect a JAR file to a URL.
Java OpenConnection() method:
7. We can attain the object of the URLConnection class with the openConnection()
method of the URL class.
Syntax:
public URLConnection openConnection() throws IOException{}
Methods of URL Connection Class in
Java:
Sl.N
.
Method Description
1 Object getContent() It returns the contents of the URL connection.
2 String getContentEncoding()
It returns the value of the content-encoding
header field in the form of a String.
3 int getContentLength()
This method provides the value of the
content-length header field in the String form.
4 String getContentType()
It returns the value of the content-type header
field.
5 int getLastModified() It gives the value of the last-modified header field.
6 long getExpiration() It returns the value of the expired header field.
7 long getIfModifiedSince()
It returns the value of the object’s ifModifiedSince
field.
8. 9
public void setDoInput(boolean
input)
The value true is passed as a parameter to this
method to specify that it will be used for
connection input.
10
public void setDoOutput(boolean
output)
We pass the parameter true to this method to
specify that we will use the connection output.
11
public InputStream getInputStream()
throws IOException
It returns the input stream of the URL connection
for reading from the resource.
12
public OutputStream
getOutputStream() throws
IOException
It returns the output stream of the URL connection
for writing to the resource.
13 public URL getURL()
Returns the URL of the connected
URLConnection object.
Example of the URLConnection class:
As we just saw the various methods that are present in the URLConnectionDemo
class, let us see an example program to implement it.
Sample program to implement URLConnection class:
import java.net.*;
import java.io.*;
public class URLConnectionDemo
{
public static void main(String[] args) throws MalformedURLException
{
try{
10. e.printStackTrace();
}
}
}
Output:
…..a complete HTML content of the home page of firstcode.com…..
Illustration methods of Java URL class:
import java.net.*;
public class FirstCode
{
public static void main(String[] args)throws Exception{
String url="https://first-code/blogs/java-tutorial/";
URL testurl= new URL(url);
System.out.println("The String representation of the URL -> "+testurl.toString());
System.out.println("The Authority of the URL -> "+testurl.getAuthority());
System.out.println("The Path of the URL -> "+testurl.getPath());
System.out.println("The Query of the URL -> "+testurl.getQuery());
System.out.println("The Host of the URL -> "+testurl.getHost());
System.out.println("The File of the URL -> "+testurl.getFile());
System.out.println("The Port of the URL -> "+testurl.getPort());
System.out.println("The Default port of the URL -> "+testurl.getDefaultPort());
System.out.println("The Protocol of the URL -> "+testurl.getProtocol());
11. System.out.println("As no certain values can be parsed, the results are null or -1 in
various cases, but there are no particular values.");
}
}
Output:
The string representation of the URL -> https://first-code/blogs/java-tutorial/
The Authority of the URL -> first-code.training
The Path of the URL -> /blogs/java-tutorial/
The Query of the URL -> null
The host of the URL -> first-code.training
The file of the URL -> /blogs/java-tutorial/
The port of the URL -> -1
The default port of the URL -> 443
The protocol of the URL -> https
As no certain values can be parsed, the results are null or -1 in various cases, but
there are no particular values.
Sample program to implement url class in Java:
import java.net.MalformedURLException;
import java.net.URL;
public class FirstCode
{
public static void main(String[] args)throws MalformedURLException
{
URL url1 = new URL("https://www.google.co.in/?gfe_rd=cr&ei=ptYq" +
"WK26I4fT8gfth6CACg#q=first+code+java+tutorials");
12. // creates a URL with a protocol,hostname,and path
URL url2 = new URL("http", "www.firstcode.com", "/jvm-works-jvm-architecture/");
URL url3 = new URL("https://www.google.co.in/search?"+ "q=gnu&rlz=1C1CHZL_enIN71" +
"4IN715&oq=gnu&aqs=chrome..69i57j6" +"9i60l5.653j0j7&sourceid=chrome&ie=UTF" +
"-8#q=first+code+java+tutorials");
// print the string representation of the URL.
System.out.println(url1.toString());
System.out.println(url2.toString());
System.out.println();
System.out.println("Different components of the URL3-");
// retrieve the protocol for the URL
System.out.println("Protocol:- " + url3.getProtocol());
// retrieve the hostname of the url
System.out.println("Hostname:- " + url3.getHost());
// retrieve the default port
System.out.println("Default port:- " +url3.getDefaultPort());
// retrieve the query part of URL
System.out.println("Query:- " + url3.getQuery());
// retrieve the path of URL
System.out.println("Path:- " + url3.getPath());
// retrieve the file name
System.out.println("File:- " + url3.getFile());
// retrieve the reference
System.out.println("Reference:- " + url3.getRef());