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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().

How To Utilize Live AI Chat agent Software For Your Business

Small businesses often struggle to provide prompt responses to customer inquiries and concerns, which can lead to a negative customer experience and potential losing valuable customers. To improve customer service, businesses can consider hiring a support team for call and email responses or implementing chat support services on their website.

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.

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.

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

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:

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.

Destructor

Destructor is opposite of constructor.It is used to destructs automatically the instance of the constructor class.it is defined one time in the class.

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.

Operator Overloading in C++

Operator overloading in C++ allows you to define how operators behave when used with objects of user-defined classes. You can customize the behavior of operators, such as +, -, *, /, ==, and many others, to work with your own classes, making your code more intuitive and expressive.

Variable

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

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.

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.

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

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.

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.

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.

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.

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.

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.

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:

Slick Slider

In this tutorial we’ll use slick Slider , A Slick Slider is a popular jQuery plugin, to build an attractive responsive image gallery. Slick.js is a well-known jQuery plugin created by Ken Wheeler that lets you build beautiful responsive carousels. so what I going to do is to create a custom slider one of my favorite slider is the slick slider. You can create a custom slider by following the steps below.

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)).

do-while loop in C

A do-while loop is a sort of loop construct in C that repeatedly runs a block of code as long as a stated condition is true. The do-while loop, as opposed to the while loop, ensures that the code block is performed at least once, even if the condition is initially false. The basic syntax of a do-while loop in C is as follows:

if Statement

If statement will execute a block of code if the given condition is true. The if statement checks a Boolean expression and executes the code based on if the expression is true

How to Encrypt and Decrypt Password in Asp.Net

Hello guys, we all need to secure our applications against unwanted user attacks, for saving privacy and maintaining application security. So for that purpose, we have to keep our passwords Encrypted in the Database. So, we will see how to Encrypt and Decrypt Passwords in Asp.Net.

Control Statements in C

In C, control statements are used to control the flow of program execution based on certain conditions or loops. These statements allow you to make decisions and repeat actions in your code

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.

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:

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.

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