how to call “ static void Main(string[] args) ”in

Question

i am new in C# and working on Console Applications now a days i wrote the following code :

Program.cs

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

namespace Ch06Ex01
{
    class Program
    {
        static void Write()
        {
            Console.WriteLine("Please enter any string..!!");
        }

         static void Main(string[] args)
        {       

            Write();
            string name = Console.ReadLine();
            Write();
            string name1 = Console.ReadLine();
            Write();
            string name2 = Console.ReadLine();
            Write();
            string name3 = Console.ReadLine();

             Console.WriteLine("{0}, {1}, {2}, {3}",name,name1,name2,name3);

             Console.WriteLine("enter \"y\" to restart the program and \"n\" to exit the Program");
             string selectedOption = Console.ReadLine();

             if (selectedOption == "y")
             {
                 // howto call  static void Main(string[] args) here agin so that the program start itself from the start point

             }    

             //else if (selectedOption == "n")
            {
               //Terminate the Program
             }
             Console.ReadKey();
         }      

    }

}

Now at the point :

 if (selectedOption == "y")
             {
                 // howto call  static void Main(string[] args) here agin so that the program start itself from the start point

             }    

i wanted to reboot the program if User enter "y" and terminate it if the user enter "n", for this purpose firs of all i tried to use goto statement like :

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

namespace Ch06Ex01
{
    class Program
    {
        static void Write()
        {
            Console.WriteLine("Please enter any string..!!");
        }

         static void Main(string[] args)
        {
            StartPoint;

            Write();
            string name = Console.ReadLine();
            Write();
            string name1 = Console.ReadLine();
            Write();
            string name2 = Console.ReadLine();
            Write();
            string name3 = Console.ReadLine();

             Console.WriteLine("{0}, {1}, {2}, {3}",name,name1,name2,name3);

             Console.WriteLine("enter \"y\" to restart the program and \"n\" to exit the Program");
             string selectedOption = Console.ReadLine();

             if (selectedOption == "y")
             {
                 // howto call  static void Main(string[] args) here agin so that the program start itself from the start point
                 goto StartPoint;
             }    

             //else if (selectedOption == "n")
             Console.ReadKey();
         }      

    }
}

but it didn't work for me at StartPoint; it gives error that

Only assignment, call, increment, decrement, await, and new object expressions can be used as a statement   C:\Users\Ahsan\Desktop\C# for Beginners Examples\Ch06Ex01\Ch06Ex01\Program.cs   18  13  Ch06Ex01

then i tried to call main function itself at point

 if (selectedOption == "y")
         {
             // howto call  static void Main(string[] args) here agin so that the program start itself from the start point

         }    

but it gives me a lot of error here , don' know how to do it now, can any one help me out ? don't know how to do this thing work.... calling " static void Main(string[] args) "in the class again would be preferred....

Answer 1

Try put the code that you will execute outside the main class in another method like

void execute()
{
        Write();
        string name = Console.ReadLine();
        Write();
        string name1 = Console.ReadLine();
        Write();
        string name2 = Console.ReadLine();
        Write();
        string name3 = Console.ReadLine();

         Console.WriteLine("{0}, {1}, {2}, {3}",name,name1,name2,name3);

         Console.WriteLine("enter \"y\" to restart the program and \"n\" to exit the Program");
         string selectedOption = Console.ReadLine();

}

then in the main

static void Main(string[] args)
{
    bool run = true
    while(run){
       execute()
       Console.WriteLine("enter \"y\" to restart the program and \"n\" to exit the Program");
        selectedOption = Console.ReadLine();
        if (selectedOption == "n")
        {
             run = false;
        }    
    }
}

Answer 2

Just call the method again, passing in the same arguments that where passed in initially, also try to avoid using goto if you can:

if (selectedOption == "y")
{
    // howto call  static void Main(string[] args) here agin so that the program start itself from the start point
    Main(args);
}    

Answer 3

Firstly, your label is incorrect. The end of a label should have a colon character :.. so your label should have been this:

StartPoint:

However:

You should just loop until a condition is met. In this case.. the condition is to not restart:

bool running = true;

while (running) {
    /* 
     * all of your other code
     * should go here
     */
    if (selectedOption != "y") {
        running = false;
    }
}

Answer 4

something like this :

static void Main(string[] args)
            {      
                string selectedOption = "";

                 do 
                 {

                               ...........

                 }
                 while (selectedOption == "y")

                 if (selectedOption == "n")
                 {
                   //Terminate the Program
                  }

             } 

Answer 5

You realy should not use a goto or call your Main again (recursion), do while is a better solution to repeat your logic muliple times:

    string selectedOption;
    do {
        Write();
        string name = Console.ReadLine();
        Write();
        string name1 = Console.ReadLine();
        Write();
        string name2 = Console.ReadLine();
        Write();
        string name3 = Console.ReadLine();

         Console.WriteLine("{0}, {1}, {2}, {3}",name,name1,name2,name3);

         Console.WriteLine("enter \"y\" to restart the program and \"n\" to exit the Program");
         selectedOption = Console.ReadLine();
      } while (selectedOption == "y")
      Console.ReadKey();