using System;

//Indexer Overloading

namespace HelloGeeksApp { 

class HelloGeeks { 

    // private array of 

    // strings with size 2 

    private string[] word = new string[2]; 

    // this indexer gets executed 

    // when Obj[0]gets executed 

    public string this[int flag] 

    { 

        // using get accessor 

        get

        { 

            string temp = word[flag]; 

            return temp; 

        } 

        // using set accessor 

        set

        { 

            word[flag] = value; 

        } 

    } 

    // this is an Overloaded indexer 

    // which will execute when 

    // Obj[1.0f] gets executed 

    public string this[float flag] 

    { 

        // using get accessor 

        get

        { 

            string temp = word[1]; 

            return temp; 

        } 

        // using set accessor 

        set

        { 

            // it will set value of 

            // the private string 

            // assigned in main 

            word[1] = value; 

        } 

    } 

}   

public class MainClass{

​

static void Main(string[] args) 

{ 

    HelloGeeks Obj = new HelloGeeks(); 

    Obj[0] = "Hello"; // Value of word[0] 

    Obj[1.0f] = " Geeks"; // Value of word[1] 

    Console.WriteLine(Obj[0] + Obj[1.0f]); 

} 

} 

} 

​

​

//Method overloading

/*

class shape

{

public void area(int side)

{

    Console.WriteLine("Area_1");

}

public void area(int l,int b)

{

    Console.WriteLine("Area_2");

}

public void area(double r)

{

    Console.WriteLine("Area_3");

}

public void area()

{

    Console.WriteLine("Area_4");

}}

public class MainClass

{

    public void Main(){

    shape s=new shape();

    s.area();

}}

*/

/*

//Extension Methods

static class Mynewclass{

    public static int MyExtensionMethod(this string Number)

    {

  Console.WriteLine("Myextenstion");

        return 0;

    }

    public static int MyStaticMethod(string Number)

    {

    Console.WriteLine("Mystatic");

        return 0;

    }

}

public class MainClass

{

    //Number should be static as it is in main by deafult it is static// 

    public static void Main()

    {

     string Number="100";   

    int a=Number.MyExtensionMethod();

    int b=Mynewclass.MyStaticMethod(Number);

}}

*/

​

//inheritance with deafult acess//

/*

class newclass{

internal newclass(){

Console.WriteLine("Class1");

    }}

class nextclass : newclass

{

internal  nextclass(){

Console.WriteLine("newclass");

}}

​

public class Program

{

    public static void Main()

    {

        nextclass nc=new nextclass();

        Console.WriteLine((nc).GetType());

        Console.WriteLine("Hello World");

}}

*/