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Hashmap in Java

HashMap is a component of the Java Collections Framework that implements the Map interface. It offers a key-value pair data structure in which elements are stored as a combination of keys and their corresponding values. HashMap does not support duplicate keys, but it does support mapping multiple values to the same key. It provides constant-time performance for simple operations like as element addition, removal, and retrieval.

How to implement Paypal in Asp.Net Webforms

Hello guys, we often want to integrate payment gateways in our Asp.Net applications. Some of the most popular payment gateways are payumoney,paypal,stripe and razorpay. We have already covered payumoney and stripe in our blogs. In this article we will see How to implement Paypal in Asp.Net Webforms.

How to fix CWE-23 Path Traversal vulnerability (Snyk)

Hello guys, in this article we will see how to fix CWE-23 Path Traversal vulnerability Unsanitized input from an HTTP parameter flows into global::System.IO.Directory.CreateDirectory, where it is used as a path. This may result in a Path Traversal vulnerability and allow an attacker to create arbitrary directories when we scan our code with snyk.

Create and publish a package using Visual Studio (.NET Framework, Windows)

Creating a NuGet package from a .NET Framework Class Library involves creating the DLL in Visual Studio on Windows, then using the nuget.exe command-line tool to create and publish the package.

Registration Form In HTML

Creating an HTML registration form entails the use of numerous form elements, such as text inputs, radio buttons, checkboxes, and buttons. Here's a simple HTML registration form example:

Hangfire in ASP.NET Core 3.1 – Background Jobs

Hangfire is an open-source library to schedule and execute background jobs in .NET applications. You'll be able to create a simple background process inside the same application pool or thread without creating separate applications. Hangfire creates background jobs in persistence storage, like MS SQL Server, Redis, MongoDB, and others, that may prevent you from losing the job on recycling IIS pools or exception prevalence.

Implement JWT Token Authentication with Validate and Refresh Token in asp.net mvc

Hello guys in this article we will see how to implement JWT Token Authenticate with Validate Token and Refresh Token automatically . We will create one action filter attribute that will automatically validate all the request and if the token is expired it will refresh the token again.

How to implement Authorize.Net Payment gateway in asp.net mvc

Hello guys, we often want to integrate payment gateways in our Asp.Net applications. Some of the most popular payment gateways are Authorize net, payumoney,paypal,stripe and razorpay. We have already covered payumoney and stripe in our blogs. In this article we will see How to implement Authorize.Net Payment gateway in asp.net mvc.

How to Create Subscriptions in Paypal in Asp.Net Core

In this article, we'll dive into integrating PayPal subscriptions into an ASP.NET Core application. PayPal offers a robust API that allows developers to create and manage subscription plans seamlessly. We'll walk through a sample code snippet that demonstrates how to create a subscription plan, add a product, and initiate a subscription for a user.

Linked List In Java

In Java, the LinkedList class implements the List interface and provides a doubly-linked list data structure. It provides a versatile means of storing and manipulating a collection of items. A LinkedList, unlike an ArrayList, uses references to connect components rather than contiguous memory allocation.

NullPointerException in Java

A NullPointerException is a runtime exception in Java that happens when you attempt to perform an operation on a null object reference. In other words, you're attempting to access a member (such as a method or field) of an object that hasn't yet been initialized, which results in a null reference.

Tag or mention people like WhatsApp & Skype by using @ in Angular

Hello guys, often while working with angular js you sometimes have requirement of implementing chat functionality where user can press @ and select users from the list , similar to what we do on skype or all big chatting platforms. For that purpose we can use Angular-mentions which is a package in Angular js for skype like @ chat functionality. We will see how to use that in detail.

LinkedHashMap in Java

Java includes a number of data structures for storing and manipulating collections of objects. The 'LinkedHashMap' class, which is an extension of the 'HashMap' class, is one of the important classes in the Java Collections Framework. LinkedHashMap, unlike HashMap, preserves the order of its items depending on the insertion order, making it helpful in cases where the order of components must be maintained based on their arrival time.

java.lang.NumberFormatException

A NumberFormatException is produced in Java when you try to convert a string to a numeric type (such as int, double, float, etc.) but the string's format is incompatible with the required format for that numeric type. This is common when using parsing techniques such as Integer.parseInt(), Double.parseDouble(), or Float.parseFloat().

Method Overriding in Java

Overriding methods is a key idea in Java object-oriented programming. It enables a subclass to provide a particular implementation of a method defined in the superclass. When you override a method, you replace the superclass's inherited implementation with your own version in the subclass. This allows for polymorphism and dynamic method dispatch.

App Trim in .NET Core

In ASP.NET Core, App Trim refers to a feature that automatically removes unused assemblies from the application's memory during runtime. This helps to reduce the memory footprint of the application and improve its overall performance.

Top 7 Benefits of Investing in AI Development Services for Your Business

Innovation has become essential in today's digital-first economy. Artificial intelligence (AI) is being used more and more by businesses trying to stay competitive in order to boost productivity, improve customer satisfaction, and open up new growth prospects. However, realising AI's full potential necessitates more than experimenting with technology; it calls for the proper plan and skilful implementation. AI development services can help with that.

String Builder

When you need to manage strings efficiently in Java, you should utilise the StringBuilder class. Unlike the immutable String class, the StringBuilder class allows you to change the contents of a string without creating a new object each time.

How to implement JWT Token in Asp.Net core 7

Hello, readers, and welcome to Code2Night! In this blog post, we will focus on the latter and explore how to implement JWT Token Authentication in ASP.NET Core 7.0 Web api and .net core 7 web application. So we will see how we will generate jwt token and how we will verify the token using authorize attribute.

Array List

In Java, the ArrayList class implements the List interface as a resizable array. It offers dynamic arrays that can expand or contract in size as needed. ArrayLists are a component of the Java Collections Framework and provide a variety of methods for modifying the elements contained in them.

How to Integrate Google Sign in Asp.net Core 8.0

Hello everyone, in today's digital landscape, integrating Google authentication login using Google API has become increasingly essential. In this article, we will delve into the process of seamlessly integrating Google SignIn into Asp.Net Core 8.0, the latest framework in the .NET Core ecosystem. Let's explore how to streamline user authentication and elevate the security standards of your web applications by Integrating Google SignIn in Asp.Net Core 8.0.

While Loop

C# provides the while loop to repeatedly execute a block of code as long as the specified condition returns false. The while loop starts with the while keyword, and it must include a boolean conditional expression inside brackets that returns either true or false. It executes the code block until the specified conditional expression returns false. The condition is given in the beginning of the loop and all statements are executed till the given boolean condition satisfies when the condition becomes false, the control will be out from the while loop else It executes the code block until the specified conditional expression returns false.

How to generate pdf using itextsharp in asp.net mvc

In this article, we'll walk you through the process of using iTextSharp to create PDF documents within an ASP.NET MVC project. We'll dissect the code you've provided and explain each step to ensure you have a comprehensive understanding of the implementation. So follow the steps for learning How to generate pdf using itextsharp in asp.net mvc.

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