Interface in C#



An Interface is a User Defined Type, and it will contain only the Abstract Method, it is required or mandate to implement the abstract method of Interface in the Child Class. In Other Words, it is defined as abstract method without abstract class.
Abstract Methods à Defining the declaration of method I.e. Method without method body and the implementation of this method is available in the child class.
Example,
interface IDemo// Interface
       {
             void InterfaceDisplay();// Declaring a method in Interface.
             
      void InterfaceDisplay2();// Declaring a method in Interface.

}
The process of implementing the method Declared in the Interface class will be implemented in the child Class. These are mainly derived from the Base library – “System” Class.
Example,


                                                                                                                                   





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