What is interface?

Teacher
Farhan Sakib
Category
Csharp(C#)
Tag
Csharp(C#)
Playlist

Topic Name Introduction to C# Environment Setup C# Keywords Contextual Keywords C# Namespaces What Is Class? What is Object? Data Types Nullable Types C# Variables What are Access Modifiers? What is Property? What is Indexer? Hello world Program What is Type conversion? What is if else condition? What is Array? What is Jagged Array? What is ArrayList? What is List? What is string and StringBuilder? What is for loop? What is foreach loop? What is switch? What is Method? What is method overloading? What is Constructor? What is constructor overloading? What is Boxing and Unboxing? What is delegate in C# and uses of delegates? What is Inheritance? What are Value types and Reference types? What is Exception Handling? What is struct? What is Dictionary? What is Hashtable? What is interface? What is Abstraction? What is Polymorphism? What is Enums? What is Sealed Class? What is Partial Class? Extension Methods? What is static? What is Encapsulation? Difference between Equality Operator (==) and Equals() Method in C# ? What is IEnumerable? What is Serializing? What is LINQ? Differences between IEnumerable and IQueryable? What is Multithreading? What is File Handling? What is late binding and early binding? What is Singleton Design Patterns?

1/11/2020 6:46:37 AM

An interface defined using the interface keyword. Interface looks like a class but when we create an interface then we can only define the method. Now when class are inherited then the class are responsible to implemented the method. Class are inherited only one class at a time but interface can inherit many interfaces at a time. Now Given bellow the interface example code:

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using testForClass1;

namespace testFor
{
    public interface Emplyee : Teacher, Student
    {

    }
    public interface Teacher
    {
        void teacherName();

    }
    public interface Student
    {
        void studentName();
    }
    public class AllEmp : Emplyee
    {
        void Student.studentName()
        {
            Console.WriteLine("Farhan Sakib Jesy");
        }

        void Teacher.teacherName()
        {
            Console.WriteLine("Reza Karim");
        }

    }
    public class Program
    {

        static void Main(string[] args)
        {
            AllEmp obj = new AllEmp();

            Console.Read();
        }


    }
}