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Asp.Net WebApi Interview Questions Interview Questions 1 – Explain what is REST and RESTFUL? Representational State Transfer (REST) is an architectural style that defines a set of constraints to be used for creating web services and APIs. It has defined guidelines for creating services which are scalable. REST used with HTTP protocol using its…
Top 20 beginner level C# interview questions What is C#? C# is a simple, modern, type-safe, managed and object oriented language, which is compiled by .Net framework for generating intermediate language (IL). It is designed to be a platform-independent language although it is implemented primarily on Windows. Its syntax is similar to C and C++…
By using Array.sort (arrayName) method. It sorts the elements in an entire one-dimensional Array using the IComparable implementation of each element of the Array. If you want to sort in descending order, First sort the array using Array.sort(arrayName) then reverse the same using Array.reverse (arrayName) method. [amazon_link asins=’9351190900,007070368X,8120352068,9386873583|1840787198,1484230175,0985580135′ template=’ProductGrid’ store=’desibanjara22-21|desibanjaraco-21′ marketplace=’IN|UK’ link_id=’66554407-915d-11e8-9dd7-b3406be566d4′]
The Array class is the base class for all the arrays in C#. It is defined in the System namespace. The Array class provides various properties and methods to work with arrays.
There are three types of array in C#: Single-Dimensional Multidimensional Jagged arrays [amazon_link asins=’B0719KCBZT,B0779CNVM8,B011V135LM,B01CZWN0TI,B078NRPJT6,B00F0P2H06,B01FFQ1FS4,B00XHVQZNA,B011V108H6|B000BJVUS6,B01HEZ5H6K,B00IG6GEVO,B0199NOWM0,B00SNH9TKO,B01I9EFN1Y,B00EEV2QVW,B0107BYPLG,B005ANYMG0′ template=’ProductGrid’ store=’desibanjara22-21|desibanjaraco-21′ marketplace=’IN|UK’ link_id=’85aaae9a-94e4-11e8-aef2-6dca01bb821b’]
By using the params keyword, a method parameter can be specified which takes a variable number of arguments or even no argument. After the params keyword used in a method declaration, no additional parameters are permitted. Also only one params keyword is allowed in a method declaration. [amazon_link asins=’B0719KCBZT,B0779CNVM8,B011V135LM,B01CZWN0TI,B078NRPJT6,B00F0P2H06,B01FFQ1FS4,B00XHVQZNA,B011V108H6|B000BJVUS6,B01HEZ5H6K,B00IG6GEVO,B0199NOWM0,B00SNH9TKO,B01I9EFN1Y,B00EEV2QVW,B0107BYPLG,B005ANYMG0′ template=’ProductGrid’ store=’desibanjara22-21|desibanjaraco-21′ marketplace=’IN|UK’ link_id=’85aaae9a-94e4-11e8-aef2-6dca01bb821b’]
The Null coalescing operator is used with the nullable value types and reference types. It is a binary operator that simplifies checking for null values. If the value of the first operand is null, then the operator returns the value of second operand, otherwise it returns the value of the first operand. Example: x ??…
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C# provides a special data types, the nullable types, to which you can assign normal range of values as well as null values. [amazon_link asins=’B0719KCBZT,B0779CNVM8,B01CZWN0TI,B011V135LM,B0072T3X38,B078NRPJT6,B01FFQ1FS4,B00XHVQZNA,B011V108H6|B000BJVUS6,B01HEZ5H6K,B0199NOWM0,B00SNH9TKO,B01I9EFN1Y,B00EEV2QVW,B0107BYPLG,B005ANYMG0′ template=’ProductGrid’ store=’desibanjara22-21|desibanjaraco-21′ marketplace=’IN|UK’ link_id=’8afacfe7-94e3-11e8-8441-67501bd4f6a0′]
The purpose of an access specifier is to define the scope and visibility of a class member. C# provides five access specifiers: public, private , protected , internal and protected internal. Public access specifier allows a class to expose its member variables and member functions to other functions and objects. Any public member can be accessed from…
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Encapsulation is implemented by using access specifiers.