What is generic type parameter in C#?

The type parameter is a placeholder for a specific type that the client specifies when they create an instance of the generic type. A generic class cannot be used as-is because it is simply a blueprint for that type.

What is type parameter generics?

A type parameter, also known as a type variable, is an identifier that specifies a generic type name. The type parameters can be used to declare the return type and act as placeholders for the types of the arguments passed to the generic method, which are known as actual type arguments.

Can a generic class have multiple constraints?

There can be more than one constraint associated with a type parameter. When this is the case, use a comma-separated list of constraints. In this list, the first constraint must be class or struct or the base class.

What is the purpose of the class constraint on a type parameter?

Object, you’ll apply constraints to the type parameter. For example, the base class constraint tells the compiler that only objects of this type or derived from this type will be used as type arguments. Once the compiler has this guarantee, it can allow methods of that type to be called in the generic class.

Which of these type parameter is used for a generic class?

Which of these type parameters is used for a generic class to return and accept a number? Explanation: N is used for Number. Sanfoundry Certification Contest of the Month is Live.

What is generic class in C# with example?

Generic is a class which allows the user to define classes and methods with the placeholder. Generics were added to version 2.0 of the C# language. The basic idea behind using Generic is to allow type (Integer, String, … etc and user-defined types) to be a parameter to methods, classes, and interfaces.

Can you create instances of generic type parameters?

Yes, this is nice especially if the generic class is abstract, you can do this in the concrete subclasses 🙂 @TimKuipers The in class Foo is not bound to any particular type.