Understanding Generics in C#

This video tutorial introduces the concept of generics in C#, highlighting their power and flexibility in creating reusable code. It covers the implementation of generics in functions, classes, and interfaces, and explains how to define multiple generic types. The tutorial also discusses constraints on generics and provides examples of using generics with delegates. The video concludes with a summary and additional resources for further learning.

What is the primary advantage of using generics in C#?

• They allow for more specific code.

• They make code run faster.

• They simplify syntax.

• They enable code to work with any data type.

In the basic implementation of a generic function, what symbol is used to define a generic type?

• Angle brackets <>

• Parentheses ()

• Square brackets []

• Curly braces {}

How does the compiler handle type inference in generic functions?

• It requires explicit type declaration.

• It automatically infers the type based on the arguments.

• It uses a default type.

• It throws an error if the type is not specified.

What is the standard naming convention for a generic type in C#?

• G

• T

• Y

• X

What is a key feature of the Action and Func delegates in relation to generics?

• They do not support generics.

• They can only handle one type of parameter.

• They can use multiple generic types.

• They are limited to integer types.

When defining a class with generics, what can be used to ensure a type implements a specific interface?

• Type casting

• Inheritance

• Constraints

• Overloading

What is the purpose of adding constraints to a generic type in a class?

• To limit the number of instances

• To ensure type safety and specific behavior

• To simplify the code

• To increase performance

How can generics be used in interfaces?

• By defining a generic type parameter in the interface

• By implementing multiple interfaces

• By avoiding the use of methods

• By using only specific data types

Which of the following is NOT a constraint that can be applied to a generic type?

• Class

• Struct

• New

• Static

What is a practical benefit of using generics in C#?

• They make code more complex.

• They reduce the need for multiple versions of the same function.

• They increase the size of the codebase.

• They limit the use of different data types.