How can Starting and Stopping Processes Programmatically ?

Answer 1

How can implement Dynamic Polymorphism in c# ?

Dynamic polymorphism is implemented by abstract classes and virtual functions.

using System;
namespace PolymorphismApplication
{
class Shape
{
protected int width, height;
public Shape( int a=0, int b=0)
{
width = a;
height = b;
}
public virtual int area()
{
Console.WriteLine("Parent class area :");
return 0;
}
}
class Rectangle: Shape
{
public Rectangle( int a=0, int b=0): base(a, b)
{

}
public override int area ()
{
Console.WriteLine("Rectangle class area :");
return (width * height);
}
}
class Triangle: Shape
{
public Triangle(int a = 0, int b = 0): base(a, b)
{

}
public override int area()
{
Console.WriteLine("Triangle class area :");
return (width * height / 2);
}
}
class Caller
{
public void CallArea(Shape sh)
{
int a;
a = sh.area();
Console.WriteLine("Area: {0}", a);
}
}
class Tester
{

static void Main(string[] args)
{
Caller c = new Caller();
Rectangle r = new Rectangle(10, 7);
Triangle t = new Triangle(10, 5);
c.CallArea(r);
c.CallArea(t);
Console.ReadKey();
}
}
}

Answer 2

static void StartAndKillProcess() { Process ieProc = null; // Launch Internet Explorer, and go to facebook! try { ieProc = Process.Start("IExplore.exe", "www.facebook.com"); } catch (InvalidOperationException ex) { Console.WriteLine(ex.Message); } Console.Write("--> Hit enter to kill {0}...", ieProc.ProcessName); Console.ReadLine(); // Kill the iexplore.exe process. try { ieProc.Kill(); } catch (InvalidOperationException ex) { Console.WriteLine(ex.Message); } }