Declare an interface and implement it : interface « Class « C# / CSharp Tutorial

interface IMyIF { 
  int myMeth(int x); 

class MyClass : IMyIF { 
  int IMyIF.myMeth(int x) { 
    return x / 3; 

7.32.2.Interface Properties
7.32.3.Creating an interface.
7.32.4.Use interface keyword to define an interface
7.32.5.Implement an interface
7.32.6.Multiple Implementation: implement two interfaces
7.32.7.Inherited interface
7.32.8.Declare an interface and implement it
7.32.9.Interfaces and Inheritance
7.32.10.Base class and interface
7.32.11.Duplicate Interface Members
7.32.12.Accessing an interface from a class.
7.32.13.Abstract Interface: how the abstract BaseClass can interface.
7.32.14.Multiple Interfaces
7.32.15.Interface Explicit Implementation