using System; //namespace declaration - indicates that you are using the System namespace
//A namespace is used to organize your code and is collection of classes, interfaces, structs, enums and delegates
class Program
{
static void Main() //function
{
//System.Console.WriteLine("Hello C#"); if not use namespace
Console.WriteLine("Hello C#"); // Ctrl + F5
Main1();
}
static void Main1()
{
Console.WriteLine("Hello C# 2");
}
}