full stack .net developer Interview Questions and Answers for Freshers

Data abstraction in OOPs is the concept of hiding the implementation details of a class and only showing the necessary information to the outside world.

• Data abstraction allows for creating abstract classes and interfaces to define the structure of a class without revealing the implementation details.

• It helps in reducing complexity by only showing the essential features of an object.

• By using abstract classes and interfaces, data abstraction enables code reusability and modular...read more

A static method is a method that belongs to the class itself, rather than to instances of the class.

• Static methods can be called directly on the class without needing an instance of the class.

• They are commonly used for utility methods that do not require access to instance variables.

• Static methods cannot access non-static members of the class.

• Example: Math.Max() is a static method in the Math class that returns the larger of two numbers.

A collection is a group of related objects or data items that are stored together.

• Collections in .NET include List, Dictionary, Queue, Stack, etc.

• Collections allow for easy manipulation and organization of data.

• Example: List<string> names = new List<string>();

An interface in .NET is a reference type that defines a contract for classes to implement certain methods and properties.

• Interfaces contain method signatures but no implementation.

• Classes can implement multiple interfaces.

• Interfaces are used to achieve abstraction and multiple inheritance in C#.

• Example: public interface IShape { void Draw(); }