How to declare member function in C# interface?

To declare member functions in interfaces in C# −

public interface InterfaceName {    // interface members    void InterfaceMemberOne();    double InterfaceMembeTwo();    void InterfaceMemberThree() } public class ClassName: InterfaceName {    void InterfaceMemberOne() {       // interface member    } }

Above we saw our interface members are −

void InterfaceMemberOne(); double InterfaceMembeTwo(); void InterfaceMemberThree()

We have then used it in the class for implementing interface −

public class ClassName: InterfaceName {    void InterfaceMemberOne() {       // interface member    } }