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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.

External CSS in HTML

In HTML, you can use external CSS (Cascading Style Sheets) to separate the style from the HTML content. This is achieved by creating a separate CSS file and linking it to your HTML document. Here are the steps to use external CSS in HTML:

Classes in C++

In C++, classes are the building blocks of object-oriented programming (OOP). They serve as blueprints or templates for creating objects. Classes define the structure and behavior of objects, encapsulating data (attributes) and functions (methods) that operate on that data.

2-D Array in C

A two-dimensional (2D) array is an arrangement of items in C that are arranged in a grid and are individually identified by a pair of indices: a row index and a column index. A 2D array can be compared to a table or matrix that has rows and columns. A 2D array in C is declared, initialised, and used as follows:

DataReader in ADO.NET

There are two common objects in ADO.NET to read data, DataSet, and DataReader. C# DataSet and C# DataReader classes represent these objects. In this article, we'll learn about ADO.NET DataReader and how to use a DataReader in C#.

do while Loop

The do while loop statement executes a statement or a block of statements while a specified Boolean expression evaluates to true. Because that expression is evaluated after each execution of the loop, a do-while loop executes one or more times.The do while loop stops execution exits when a boolean condition evaluates to false. Because the while(condition) specified at the end of the block, it certainly executes the code block at least once.This differs from the while loop, which executes zero or more times. The do while loop is the same as while loop except that it executes the code block at least once

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.

LINQ

LINQ (Language Integrated Query) is a feature in C# that allows us to perform queries against data sources, which can be arrays, collections, or any type of databases, using a SQL-like syntax. In this article, we will cover some basic concepts and functionalitites of LINQ and learn how to use it in your C# application

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.

Integrate Stripe Payment Gateway In ASP.NET Core 8.0

This tutorial demonstrates how to accept payments with Stripe Checkout in an ASP.NET Core 8.0 application built with C# . The application uses Checkout to accept credit cards from the end user and send tokens to a back-end API. The back-end controller uses the Stripe .NET library to create a charge. We are using latest version on Stripe.Net api in this. Check out complete steps to Integrate Stripe Payment Gateway In ASP.NET Core 8.0

C# Regex Examples

The Regex class in C# is part of the System.Text.RegularExpressions namespace. It provides a way to work with regular expressions, allowing you to perform pattern matching and manipulation of text. Here are some common operations you can perform using the Regex class:

C# collection

For many applications, you want to create and manage groups of related objects. There are two ways to group objects: by creating arrays of objects, and by creating collections of objects. Arrays are most useful for creating and working with a fixed number of strongly typed objects. For information about arrays, see Arrays.

String Joiner

The String Joiner class in Java makes it easy to connect several strings with a defined delimiter. It is very useful for concatenating strings in a loop or dealing with string collections.

Vector In Java

A dynamic array implementation that is a part of the Java Collections Framework is the Vector class in Java. It offers a resizable array that can expand or contract as necessary. Similar to ArrayLists, vectors are thread-safe for use in multi-threaded situations since they are synchronised.

Chapter 3 CSS (Define ID in CSS)

In HTML and CSS, an ID (identifier) is a unique attribute used to identify an individual element on a webpage. Each ID must be unique within the document, distinguishing one element from all others.

Real Time Chat using SignalR with .Net core and Vue.js

Hello guys, We often found ourself in the need of a realtime chat app . For two way communication in your webapp. We will see how to implement real time chat using SignalR with .Net core and Vue.js. SignalR is basically used for any sort of realtime functionalities. We will use .Net core for managing chathub . You can see complete steps in the article.

How to reload child components in vue.js

Hello guys, in this article we will learn how to reload vue js child component. Sometime we need to reset child components or just re-render them. There few ways to reset child components but for beginner and those who have just started with vue js it can become a tough task to understand the flow to reset child components. So we will see how to reload child component.

Globalization and localization in ASP.NET Core With Resource Files

In this article we will focus on implementing Globalization and localization in ASP.NET Core With Resource Files . We will be trying to implement culture in Asp.Net core 3.1.So if your are struggling in using you Asp.Net Resource Files in .net core have a look at the article in detail.

Swich Statement in C

A control structure in C called a switch statement is used to make decisions based on the value of a variable or expression. It enables you to run a block of code connected to the first matching case after testing a variable against a set of values (cases). The switch statement's fundamental grammar is as follows:

Linked Hashset In Java

The Java Collections Framework's LinkedHashSet is an implementation of the Set interface. It combines the advantages of LinkedList and HashSet. The order in which the elements were added to the set is the iteration order that the LinkedHashSet preserves. It offers constant-time performance for fundamental operations and disallows duplicate elements, just like HashSet.

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.

How to refund payment using Paypal 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 payumoney,paypal,stripe and razorpay. We have already covered payumoney and stripe in our blogs. In this article we will see How to refund payment using Paypal in Asp.Net MVC. For this we will use paypal sale api.

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.

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.

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.

ConfigurationBuilder does not contain a definition for SetBasePath

In this article we will see how to solve issue 'ConfigurationBuilder' does not contain a definition for 'SetBasePath' and no extension method 'SetBasePath' accepting a first argument of type 'ConfigurationBuilder' could be found (are you missing a using directive or an assembly reference? in .Net Core 3. We will see how to ready json files in .Net core 3.

Climbing the Career Ladder: Advancement Opportunities in Software Engineering

In the technologically driven era we live in, software engineering stands not just as a profession but as a dynamic and vibrant journey. This journey is filled with opportunities for continuous learning, growth, and professional advancement. For those who dare to delve into its intricacies and navigate its challenges, software engineering offers numerous routes to personal and professional development.

Exception Handling and Creating Exception Logs in Asp.net MVC

So basically in a MVC Project we often use many controllers for making our web project functional.So one way is to handle exception separately on all of them or we can simple use a Base Controller. A Base controller can be told as a parent controller from which all other controller will inherit.So in that way Exception handling performed on Base Controller will get applied on all controllers which inherits from this controller.

Tables In HTML

Creating tables in HTML is a way to display tabular data in a structured format. HTML provides several elements for building tables, including the,,, and elements.

Upcast and Downcast in Java

Type conversions between classes in an inheritance hierarchy are referred to as "upcasting" and "downcasting" in Java. When working with polymorphism and inheritance, these conversions are frequently required. Let's look at both ideas:

Implicit wait V/s Explicit wait In Java

In Selenium WebDriver, both implicit wait and explicit wait are mechanisms to control the timing of interactions with web elements, especially when elements might not be immediately available due to various reasons such as dynamic content loading, AJAX requests, etc. Both techniques help in synchronizing your tests with the actual behavior of the web application.

Implement Stripe Payment Gateway In ASP.NET MVC

This tutorial demonstrates how to accept payments with Stripe Checkout in an ASP.NET Core application built with C# and Web Forms. The application uses Checkout to accept credit cards from the end user and send tokens to a back-end API. The back-end controller uses the Stripe .NET library to create a charge. We are using latest version on Stripe.Net api in this. Check out complete steps to Implement Stripe Payment Gateway In ASP.NET Core

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