Top C# Interview Questions and Answers for Freshers and 2 - 4 years Experienced Dot Net developers and Testers with sample code and. The list of C# Interview Questions and Answers is also available for download as PDF file. C# is an enormous programming language with. Net Interview Questions and Answers PDF | C#.Net Interview Questions and Answers for Freshers | C#.Net Interview Questions and Answers | C# Interview.
|Language:||English, Spanish, Hindi|
|Genre:||Health & Fitness|
|Distribution:||Free* [*Registration Required]|
C# Tutorials FAQ - Frequently Asked Interview Questions and Answers for Freshers or Experienced Pdf. This interview section questions contains a brief. Composed of important C# interview questions and answers for Freshers, Experienced. 50 more Questions based osakeya.info Framework, OOP. C#/CSharp interview questions and answers for freshers/beginners and experienced. Our advanced C#.Net interview questions are very useful for experienced.
Using Array. It sorts the elements in an entire one-dimensional Array using the IComparable implementation of each element of the Array. How to sort an array in C in descending order?
First sort the array using Array. What is a structure in C? In C , a structure is a value type data type. It helps you to make a single variable hold related data of various data types. The struct keyword is used for creating a structure.
Structures are used to represent a record. To define a structure, you must use the struct statement.
The struct statement defines a new data type, with more than one member for your program. What is a enumeration in C? An enumeration is a set of named integer constants. An enumerated type is declared using the enum keyword. C enumerations are value data type. In other words, enumeration contains its own values and cannot inherit or cannot pass inheritance.
What is the default access for a class? Default access specifier for a class type is internal. What is the default access for a class member? Default access for the members is private. What is inheritance? One of the most important concepts in object-oriented programming is inheritance.
Inheritance allows us to define a class in terms of another class, which makes it easier to create and maintain an application. This also provides an opportunity to reuse the code functionality and speeds up implementation time. When creating a class, instead of writing completely new data members and member functions, the programmer can designate that the new class should inherit the members of an existing class. This existing class is called the base class, and the new class is referred to as the derived class.
The idea of inheritance implements the IS-A relationship. Is multiple inheritance supported in C? C does not support multiple inheritance. How to inherit a class in C? A class can be derived from more than one class or interface, which means that it can inherit data and functions from multiple base classes or interfaces. The word polymorphism means having many forms. In object-oriented programming paradigm, polymorphism is often expressed as 'one interface, multiple functions'.
What is the difference between static polymorphism and dynamic polymorphism? Polymorphism can be static or dynamic. In static polymorphism, the response to a function is determined at the compile time. In dynamic polymorphism, it is decided at run-time.
How C supports static polymorphism?
C provides two techniques to implement static polymorphism. The mechanism of linking a function with an object during compile time is called early binding.
It is also called static binding. What is function overloading? You can have multiple definitions for the same function name in the same scope. You cannot overload function declarations that differ only by return type. How C supports dynamic polymorphism? Dynamic polymorphism is implemented by abstract classes and virtual functions. What is a sealed class in C? When a class is declared sealed, it cannot be inherited.
How will you create sealed abstract class in C?
It can not be created as abstract classes cannot be declared sealed. What are virtual functions in C? When you have a function defined in a class that you want to be implemented in an inherited class es , you use virtual functions.
The virtual functions could be implemented differently in different inherited class and the call to these functions will be decided at runtime. Is operator overloading supported in C?
You can redefine or overload most of the built-in operators available in C. Thus a programmer can use operators with user-defined types as well.
Overloaded operators are functions with special names the keyword operator followed by the symbol for the operator being defined. Similar to any other function, an overloaded operator has a return type and a parameter list. What is an interface? The interface defines the 'what' part of the syntactical contract and the deriving classes define the 'how' part of the syntactical contract.
Interfaces define properties, methods, and events, which are the members of the interface. Interfaces contain only the declaration of the members.
It is the responsibility of the deriving class to define the members. It often helps in providing a standard structure that the deriving classes would follow. What is a preprocessor directives in C? The preprocessor directives give instruction to the compiler to preprocess the information before actual compilation starts. However, due to type coercion, the compiler does allow it, which can potentially lead to headfakes and pull-out-your-hair bugs. Therefore it is legal to compare the two values, even though the result will always be false.
Find top C developers today. Toptal can match you with the best engineers to finish your project. The preferred answer would be of the form: circle. What is the output of the program below? Delay 5 ; with Thread.
Sleep 5? This is because result will still be uninitialized when Console.
WriteLine is called. Most procedural and object-oriented programmers expect a function to execute from beginning to end, or to a return statement, before returning to the calling function. This is not the case with C async functions.
They only execute up until the first await statement, then return to the caller.
The function called by await in this case Task. Delay completes in 5 milliseconds. However, within that time, control has already returned to the caller, which executes the Console. Calling await Task.
It allows the CLR to service more requests with less threads in the thread pool. Asynchronous programming has become a lot more common, with the prevalence of devices which perform over-the-network service requests or database requests for many activities. C has some excellent programming constructs which greatly ease the task of programming asynchronous methods, and a programmer who is aware of them will produce better programs.
With regard to the second part of the question, if await Task.