C# Programming Language

C# is a modern, object-oriented programming language developed by Microsoft in 2000 as part of its .NET initiative. It is designed for building Windows desktop and web applications, as well as Windows Store apps, Windows Phone apps, and Xbox 360 games.

C# is similar to Java in many ways, but it also has some features that are unique to the language. For example, C# supports properties, which are a way to expose the data of an object in a more convenient way than public fields. C# also has support for delegates, which are similar to function pointers in C++, and events, which allow objects to communicate with each other in a decoupled way.

One of the key features of C# is its support for object-oriented programming (OOP). OOP is a programming paradigm that is based on the concept of "objects", which are instances of classes. Classes define the structure and behavior of objects, and they are used to create objects that have the same properties and methods.

C# also has support for generics, which allow you to define classes and methods that can work with any data type. This makes it easy to write code that is reusable and easy to maintain.

C# also has support for the Common Language Infrastructure (CLI), which is a set of standards that define how languages like C# and Visual Basic can interact with each other and with the .NET Framework. This allows you to use different languages to build a single application, and it also allows you to use the same code in different environments, such as Windows and Linux.

C# is also equipped with modern features such as asynchronous programming, which allows you to write code that can run in the background without blocking the main thread. This makes it easier to write responsive and scalable applications. The language also supports the Task Parallel Library (TPL), which provides a set of classes and methods for working with tasks and threads.

C# also comes with a rich set of libraries and frameworks, such as the .NET Framework, which provides a wide range of classes for working with data, networking, and other common tasks. C# also has a large community and many open-source libraries and frameworks available.

In summary, C# is a modern, object-oriented programming language that is designed for building Windows desktop and web applications, as well as Windows Store apps, Windows Phone apps, and Xbox 360 games. It has a rich set of features such as properties, delegates, events, generics, CLI, asynchronous programming and TPL. Additionally, it has a large set of libraries and frameworks, as well as a large and active community.

C# Interview Questions 

• How is memory managed in C#?
• Explain the difference between a class and an object in C#.
• Describe the difference between a value type and a reference type in C#.
• What is the difference between a static class and a singleton pattern in C#?
• How do you implement exception handling in C#?
• Explain the difference between the "var" keyword and explicit typing in C#.
• How do you define and use delegates in C#?
• What is the purpose of the "async" and "await" keywords in C#?
• How do you implement threading in C#?
• How do you implement inheritance in C#?
• What is the difference between an interface and an abstract class in C#?
• How do you define and use an enumeration in C#?
• What is the purpose of the "lock" keyword in C#?
• How do you implement generics in C#?
• What is the difference between a "foreach" loop and a "for" loop in C#?
• How do you implement a linked list in C#?
• Explain the difference between a "stack" and a "queue" in C#.
• How do you implement a dictionary in C#?
• How do you implement a binary tree in C#?
• How do you implement a hash table in C#?
• Explain the difference between "out" and "ref" parameters in C#.
• How do you implement a graph data structure in C#?
• What is the difference between "overriding" and "overloading" a method in C#?
• How do you implement a sorted list in C#?
• Explain the difference between "continue" and "break" keywords in C#.
• How do you implement a priority queue in C#?
• What is the difference between a "partial" class and a "normal" class in C#?
• How do you implement a circular buffer in C#?
• Explain the difference between "value" and "reference" equality in C#.
• How do you implement a binary search tree in C#?
• What is the purpose of the "nullable" keyword in C#?
• How do you implement a bloom filter in C#?
• Explain the difference between a "synchronous" and "asynchronous" method in C#.
• How do you implement a LRU cache in C#?
• What is the difference between a "sealed" class and a "normal" class in C#?
• How do you implement a Trie data structure in C#?
• Explain the difference between "lazy" and "eager" initialization in C#.
• How do you implement a union-find data structure in C#?
• What is the difference between a "const" and a "readonly" variable in C#?
• How do you implement a suffix array in C#?