Interface in c# , What is the use of Interface and example

Before learn about interface ,we need to know about inheritance and their concept.inheritance means derived from other classes.if i inherit from parent class then the child class have all function of parent class.

There are five types of inheritance

source:http://a5theory.com/oops-concepts/

1. Single Inheritance:extends one class form parent class.

for example

using System;
namespace InheritanceDemo
{
public class Details
{
string name;
string school;
public void Program(string name, string school)
{
this.name = name;
this.school = school;
Console.WriteLine(name +” at “+ school);
}
public class PrintDetails : Details
{
public void Print()
{
}
static void Main(string[] args)
{
Details obj = new Details();
obj.Program(“kajasumanie”, “Chavakachcheri hindu college”);