Learn C#: Interfaces
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C# Interface
In C#, an interface contains definitions for a group of related functionalities that a class can implement.
Interfaces are useful because they guarantee how a class behaves. This, along with the fact that a class can implement multiple interfaces, helps organize and modularize components of software.
It is best practice to start the name of an interface with “I”.
interface IAutomobile{string LicensePlate { get; }double Speed { get; }int Wheels { get; }}// The IAutomobile interface has three properties. Any class that implements this interface must have these three properties.public interface IAccount{void PayInFunds ( decimal amount );bool WithdrawFunds ( decimal amount );decimal GetBalance ();}// The IAccount interface has three methods to implement.public class CustomerAccount : IAccount{ }// This CustomerAccount class is labeled with : IAccount, which means that it will implement that interface.
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- Learn intermediate C# concepts like inheritance, asynchronous programming, events, iterators, and more to build efficient applications.
- With Certificate
- Intermediate.30 hours
- Jumpstart your career with this skill path, first by learning the C# language, then building web apps with ASP.NET Core and the Razor Pages.
- Includes 7 Courses
- With Certificate
- Intermediate.41 hours