difference between extends and implements in C#

Question

_{Wednesday, January 22, 2020 5:34 AM}

Hi All

Please Explain me the  difference between extends and implements in C#

Thnnks and regards

siddu

All replies (1)

_{Wednesday, January 22, 2020 8:20 AM}

Both the Java extends and implements keywords are represented in C# by a colon:

Java: 

public class Manager extends Person {
    ...
}

C#:

public class Manager : Person {
    ...
}

public class Manager implements IPerson {
    ...
}

C#:

public class Manager : IPerson {
    ...
}

If a class extends or derives from another class, it inherits all members and implementations from the parent class. If a class implements an interface, it must provide its own implementations for the methods defined by the interface (although in C# 8.0, you can provide default implementations in the interface: /en-us/dotnet/csharp/whats-new/csharp-8#default-interface-methods)