Index | Code2night.com

Latest Blog

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:

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:

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 use api with proxy url in Asp.Net for CORS

In modern web development, it's common to interact with external APIs or services to retrieve data for your application. However, when your web application runs in a browser and makes requests to a different domain or origin, you may encounter Cross-Origin Resource Sharing (CORS) restrictions. We will see how to use api with proxy url in Asp.net website. This also helps us to resolve CORS errors.

Chapter-4 (Operators in C)

In the C programming language, operators are special symbols or keywords that perform operations on operands. Operands are the values or variables that operators act upon

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.

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.

Introduction in C++

C++ is a powerful, high-level programming language that is widely used for developing a wide range of applications, from system software to video games and web applications. It was developed as an extension of the C programming language and introduced several features that make it a versatile and efficient language for software development.

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:

Break and Continue

The break statement is used to terminate the loop or statement in which it present. This statement is used to skip over the execution part of the loop on a certain condition.

Error-An error occurred while processing your request in .Net core IIS

Hello guys we will see how to fix Error An error occurred while processing your request.Swapping to Development environment will display more detailed information about the error that occurred.The Development environment shouldn't be enabled for deployed applications. It can result in displaying sensitive information from exceptions to end users. For local debugging, enable the Development environment by setting the ASPNETCORE_ENVIRONMENT environment variable to Development. In asp.net core IIS

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.

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

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().

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.

Child internet safety

Child internet safety refers to the precautions, guidelines, and measures taken to protect children from potential dangers and risks associated with their use of the internet and online platforms. As children increasingly access the internet for educational, entertainment, and social purposes, it becomes essential to ensure their online safety. Here are some key aspects of child internet safety:

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.

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.

Input/Output Statements in C++

In C++, input and output operations are commonly performed using the Standard Input/Output Library, which includes the <iostream> header. This library provides the 'cin' and 'cout' objects for reading input and displaying output, respectively.

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.

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.

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.

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.

Exception Handling Asp.Net Core

Error Handling in Asp.Net Core has changed a bit from what we used to use in Asp.Net Mvc. Before .Net Core We used to use OnException Methods to handle Exceptions while executing actions But it doesn't' see working in .Net Core as many features are changed.So In this Article we will see how to make exception handling work in Asp.Net Core.

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.

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

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.

Assignment To Merge Column And Rows In a table

To merge columns and rows in an HTML table, you can use the colspan and rowspan attributes within the or elements. These attributes allow you to span a cell across multiple columns (colspan) or rows (rowspan). Here's an example demonstrating how to merge cells in an HTML table:

Blogs

324

Views

2,312,128

Downloads

2872

Never study to be successful, study for self-efficiency. Don’t run behind success. Follow behind excellence, success will come all way behind you.

3 Idiots