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If Else Statement

In C# if-else statement also tests the condition. It executes the if block if the condition is true otherwise else block, is executed. the else statement to specify a block of code to be executed if the condition is False. the if-else statement checks a Boolean expression and executes the code based on if the expression is true or false. The if part of the code executes when the value of the expression is true. The else part of the code is executed when the value of the expression is false.

java.lang.IndexOutOfBoundsException

The java.lang.IndexOutOfBoundsException is an exception class in Java that is thrown when an index used to access an array, list, or other collection is either negative or greater than or equal to the size of the collection. This usually indicates an attempt to access an element at an invalid index that does not exist in the collection.

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.

Default constructor in java

A default constructor in Java is one that is provided by the Java compiler if no other constructors are explicitly defined in a class. The default constructor takes no arguments and is in charge of setting the object's fields to default values.

TreeSet In Java

TreeSet is a Java Collections Framework class that implements the SortedSet interface. It returns a set that is sorted in natural order or by a provided comparator. TreeSet, unlike HashSet, does not allow duplicate elements and delivers fast performance for simple operations like adding, removing, and searching for elements.

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.

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.

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:

Form Design In HTML

You can design forms in HTML that let users enter data and send it to a server for processing. You can create forms using a variety of form elements and HTML tags. Here's a simple illustration of how to make a straightforward form in HTML:

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.

lists in HTML

Lists in HTML are essential for structuring information, creating navigation menus, and organizing content in a readable and accessible manner on web pages.

Chapter-5 (format specifier in c)

In C, format specifiers are used to specify the type of data being read or displayed when using functions like printf and scanf. These are a few frequently used C format specifiers:

Card Number Formatting using jquery

Hello guys, often while dealing with project where we need to implement payment systems and need user to enter card number and show them the card number format properly. So for that purpose we have to use controls from payment gateways which are bit harder to manage on custom websites. So we will see how to implement Input Box Card Number Formatting using jquery.

Access Modifiers

Access modifiers in C# are used to specify the scope of accessibility of a member of a class or type of the class itself.

NoSuchwindowException in Java

The NoSuchWindowException in Java is an exception that's thrown when a WebDriver (typically from a Selenium framework) tries to switch to a window that does not exist. This usually occurs in web automation scenarios when you're working with multiple browser windows or tabs

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.

The report definition is not valid or is not supported by this version of reporting

Hello guys in this article we will see how to solve an exception when you try to use old rdlc report and make changes into that . You will see you will get an exception ReportProcessingException: The report definition is not valid. Details: The report definition has an invalid target namespace 'http://schemas.microsoft.com/sqlserver/reporting/2016/01/reportdefinition' which cannot be upgraded. We will see how to solve that.

Integrating Google Translate into ASP.NET Webpage

Expanding the reach of your ASP.NET webpage by making it accessible to users from diverse linguistic backgrounds is essential for enhancing user experience and increasing engagement. One effective way to achieve this is by integrating Google Translate into your Asp.Net webpage, enabling users to translate the content into their preferred language effortlessly.

How to upload Image file using AJAX and jquery

So starting of from the beginning Ajax is used for Asynchronous Javascript and XML. We can use it for many purposes. Few basic uses of Ajax are:- Update page without reloading the page providing better performance. Request data from a server - after the page has loaded which can be used in loading Partial Views. Send data to a server without reload - in the background making it easier to performance Save, Delete operations smoothly. Ajax in Asp.Net MVC

String Buffer in Java

The String Buffer class in Java provides a modifiable sequence of characters. It is commonly used when you need to dynamically edit strings without continuously generating new objects.

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.

Automating Keyboard and Mouse Events.

Selenium automation of keyboard and mouse events is an essential ability for efficient web testing. Knowing how to imitate user interactions is crucial whether you're performing repetitive activities or testing web apps. This in-depth guide will go through how to utilise Java's Selenium WebDriver to automate keyboard and mouse events.

Inheritance in C++

Inheritance is a fundamental concept in object-oriented programming, and it allows you to create new classes (derived or subclass) that inherit properties and behaviors from existing classes (base or superclass). In C++, inheritance is a key feature, and it enables you to establish a hierarchy of classes.

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.

A non-fatal error occured during cluster initialisation in Postgre SQL

Hello guys in this video you'll see how to solve issue A non-fatal error occured during cluster initialisation in Postgre SQL on Postgre installation. You will often see this issue while installing Postgre. We have a workaround for you to solve this issue. Just follow the steps and your issue will solve.

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.

Variable

It is a way to represent memory location through symbol so that it can be easily identified.

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.

Create JSON String in C#

JSON (JavaScript Object Notation) is a lightweight data interchange format commonly used for transmitting data between multiple systems, mostly in Web APIs and client applications. JSON is a text-based format that is easy for humans to read and write and also easy for machines to parse and generate. It is language-independent, meaning it can be used with any programming language that has the capability to parse JSON data.

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.

Hashset In Java

HashSet is a Java Collections Framework class that implements the Set interface. It gives a collection with no duplicate elements and no set order for its elements. HashSet is built on a hash table data structure, which allows it to add, remove, and search for elements in constant time (O(1)).

Parameterised constructor in java

A parameterized constructor in Java is a constructor that accepts one or more parameters when creating a class object. These parameters are used to set the values of the object's instance variables.

Chapter1 CSS

CSS (Cascading Style Sheets) is a style sheet language used to describe the display of an HTML or XML document. It allows web developers to control the appearance and layout of multiple web pages at once. Here's a detailed overview of some fundamental CSS properties:

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