Programming and Software Interview Questions and Answers

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How to Write a File using StreamWriter in C#

Writing to a file is a common task in software development. In C#

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C# StreamWriter file handling text data writing to file software development.

Sorting a Generic SortedList in Descending Order in C#

The SortedList class in C# provides a sorted collection of key-value pairs. By default, it sorts the elements in ascending order.

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C# SortedList Sorting Descending Order Reverse Keys Values

Understanding the Difference Between Delegates and Events in C#

Delegates and events are two important concepts in C# programming that are often used interchangeably.

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C# Delegates Events Programming Methods Functions

How to Read a File using StreamReader in C#?

This article provides a step-by-step guide on how to read a file using the StreamReader class in C#. It includes example code and emphasizes the importance of closing the StreamReader object to release system resources.

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C# file handling StreamReader ReadLine Close method.

How to Calculate Code Execution Time in C#

This article provides a step-by-step guide on how to calculate code execution time in C# using the Stopwatch class. It includes an example code snippet and important points to keep in mind while using the Stopwatch class.

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C# Stopwatch class code optimization performance measurement elapsed time system timer.

Understanding Design Principle vs Design Pattern in C#

This article explains the difference between design principles and design patterns in software development, and how to implement them using C# code examples.

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C# software development design principles design patterns SOLID principles Singleton pattern.

Converting a String to an Integer in C#: Methods and Examples

This article explains how to convert a string to an integer in C# using int.Parse() and int.TryParse() methods with examples. It also highlights the importance of validating the string being parsed to avoid errors.

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C# .NET Programming Parsing Data Validation

Using the "out" Keyword in C# for Efficient and Readable Code

This article explains what the "out" keyword is in C# programming language and how it can be used to pass parameters by reference. It also provides examples of using the "out" keyword and when it should be used.

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C# Programming Out Keyword Pass Parameters by Reference Efficient Code Readable Code

Understanding Boxing and Unboxing in C# Programming

This article explains the fundamental concepts of boxing and unboxing in C# programming language. It covers the definition, examples, when to use, and the performance impact of these concepts.

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C# Programming Value Types Reference Types Performance Optimization.