static void Main(string[] args)
{
Console.WriteLine("hello");
Program p = new Program();
//deligatePointer myde = new deligatePointer(print);
deligatePointer myde = p.print;
myde();
// Calculate cr = new Calculate();
calAreaPointer cptr = new calAreaPointer(Calculate.CalArea);
double area = cptr(20);
Console.WriteLine(area);
Console.ReadLine();
}
static void Main(string[] args)
{
//Console.WriteLine("Hello world");
Program p = new Program();
deligatePointer mydeligate = p.print;
mydeligate += p.display; //multicast delegate
mydeligate();
mydeligate -= p.print; //to remove print
mydeligate();
calAreaPointer cptr = Calculate.calArea; //create a delegate object
cptr += Calculate.calDistance; //multiple return only last method
double area = cptr(20);
Console.WriteLine(area);
Console.ReadLine();
}
static void Main(string[] args)
{
calAreaPointer cptr = new calAreaPointer(delegate(double r) { return(3.14 * r * r); });
Program p = new Program();
// Console.WriteLine("hello world!");
deligatePointer mydeligate = new deligatePointer(p.print);
//deligatePointer mydeligate = p.print;
mydeligate += p.Display;//multi cast delegate
mydeligate();
mydeligate
= p.print;
mydeligate();
calAreaPointer cptr = Caluclator.calArea;
cptr += Caluclator.calArea1;
lamda expression
calAreaPointer cptr1 = (r => 3.14 * r * r);
double area = cptr(100.00);
Console.WriteLine(area);
static void Main(string[] args)
{
Program p = new Program();
//deligatePointer mydel = new deligatePointer(p.print);
deligatePointer mydel = p.print;
mydel += p.display;//To do multicast method calls.
calAreaPointer cal = Caluculate.calArea;
cal += Caluculate.caldist;
double a1 = cal(20);
cal += Caluculate.caldist;
double d = cal(20);
Console.WriteLine("distance is..." + d);
Console.WriteLine("area of a square is..." + a1);
mydel();
mydel -= p.print;
mydel();
Console.ReadKey();
}
static void Main(string[] args)
{
Console.WriteLine("hello world");
Program p = new Program();
deligatePointer mydel = p.print;
mydel += p.display;//multicast deligate
mydel();
mydel -= p.print;
mydel();
calAreaPointer cptr = Calci.calArea;
cptr += Calci.caldistance;//multicast delegate having returntype primitive datatype
double area = cptr(20);
Console.WriteLine(area);//it will retu-rn last value;
Console.ReadKey();
}
