c interview questions and answers what is a property

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🚀 Master C# and .NET programming EASILY with our best-selling C# Masterclass: https://bit.ly/47Hk3u7 • This video is about C# Interview Question and Answers and should be seen as an interview preparation. • You can also read the article with all 50 questions and answers here: • https://tutorials.eu/50-interview-que... • #csharpInterviewPrep #CsharpInterviewQA • C# Interview Questions • The target audiences of this article are developers who are looking to sharpen their coding skills and prepare themselves for their technical c# interview. • Here, we are going to refer to 50+ essential questions and answers related to the c# programming language. These c# questions will help you to understand the technical concepts of the language and to increase the confidence for your next c# interview. • As a developer, we use these concepts daily. Still, we don’t have the ideas behind them at the top of your heads. So here are the questions in detail. Now let us look at those questions one by one. • What is a class? • A class is a template to create an object. It contains properties as well as methods. We can create many instances of objects from a single class. • What are the main concepts of object-oriented programming? • Encapsulation, abstraction, polymorphism, and inheritance are the main concepts of object-oriented programming. • Explain Encapsulation • Encapsulation is a process of wrapping function and data members together in a class. It is like a capsule, a single unit. • Encapsulation is to prevent the unauthorized or unwanted change of data from outside of the function. • What is abstraction? • Abstraction is the method of exposing only the required features of the class and hiding unnecessary information. • Let us try to understand it with the example of a motorbike • A rider knows the color, name, and model of the bike. Still, he does not know the internal engine and exhaust functionality. • So abstraction focuses on providing access to do a specific functionality without exposing how that functionality works internally. • What is polymorphism? • Polymorphism means the same method but different implementation. • There are two types of polymorphism. • Compile-time polymorphism – achieved by method overloading • Run time polymorphism – achieved by method overriding • What is an object? • An object is an instance of a class through which we access the functions of that class. We can use the new keyword to create an object. A class that creates an object in memory holds information about the functions, data members, and behavior of that class. • What is a constructor, and what are its different types? • A constructor is like a method with the same name as the class, but it is a unique method. Even if it is not created, the compiler creates a default constructor in memory at the time of creating an object of the class. • The constructor is used to initialize the object with some default values. • Default constructor, parameterized constructor, copy constructor, static constructor, private constructor are different constructor types. • Is C# code managed or unmanaged code? • C# is managed code because Common language runtime compiles the code to Intermediate language. • What are value types and reference types? • We can categorize variables into value type and reference type. • Variables of value type contain the value directly while the variable of a reference type contains the reference of the memory address where the value is stored actually in the memory. • For example bool, byte, int, char, and decimal are value type • And String, class, delegates are examples of reference types. • The Destructor clears out the memory to free up resources. It is managed automatically by the garbage collector. System.GC.collect() is called internally for this purpose. However, if required, it can be done explicitly using a destructor. • tutorialsEU offers you free video tutorials about programming and development for complete beginners up to experienced programmers. • This includes C#, Unity, Python, Android, Kotlin, Machine Learning, etc. • Stay tuned and subscribe to tutorialsEU: https://goo.gl/rBFh3x

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