NxtWave Interview Questions and Answers

The type of z is dynamic.

• Variable z will have the type dynamic because it is assigned the value of y, which is also dynamic.

• Dynamic type allows for late binding and can hold any type of value at runtime.

Yes, abstract class can have parameterized constructor.

• Abstract class can have parameterized constructor to initialize the data members of the class.

• The constructor of an abstract class can be used by its subclasses to initialize the abstract class.

• Example: abstract class Shape { int sides; Shape(int s) { sides = s; } }

Filters and middleware are both used for processing requests in web applications, but filters are typically used for pre-processing while middleware is used for post-processing.

• Filters are typically used for pre-processing requests before they reach the intended endpoint

• Middleware is used for post-processing requests after they have been handled by the endpoint

• Filters are specific to certain endpoints or routes, while middleware can be applied globally to all requests

• Filters ...read more

Record type in C# is a reference type that is similar to a class but with a focus on immutability and value-based equality.

• Record types are introduced in C# 9.0 and are used to create immutable data types.

• They are defined using the 'record' keyword.

• Record types automatically implement value-based equality, ToString(), and GetHashCode() methods.

• They are ideal for representing data that should not be modified once created.

• Example: record Person(string FirstName, string LastName...read more

Abstract class is a class that can have both abstract and non-abstract methods, while an interface is a contract that defines methods that a class must implement.

• Abstract class can have constructor while interface cannot.

• A class can implement multiple interfaces but can inherit only one abstract class.

• Abstract class can have variables, while variables in interface are public, static, and final by default.