static void Main()
{
LoadChild c = new LoadChild();
c.Test();
c.Test(10);
c.Show();
c.Display();
Console.ReadLine();
}
static void Main()
{
LoadChild c = new LoadChild();
c.Test(); //executes parents Test method
c.Test(10); //executes childs Test method
c.Show(); //executes parents Show method
c.Display(); //executes parents Display method
Console.ReadLine();
}