static void Main(string[] args)
{
//Rectange();
program p = new program();
#region MathDelegate
//MathDelegate del1 = new MathDelegate(Add);
//MathDelegate del2 = new MathDelegate(program.Sub);
//MathDelegate del3 = p.Mul;
//MathDelegate del4 = new MathDelegate(p.Div);
//MathDelegate del5 = del1 + del2 + del3 + del4;
//del5.Invoke(20, 5);
//Console.WriteLine();
//del5 -= del3;
//del5(22, 7);
#endregion
SampleDelegate sampleDelegate = new SampleDelegate(MethodOne);
sampleDelegate += MethodTwo;
int ValueReturnedByDelegate = sampleDelegate.Invoke(2);
Console.WriteLine($"Returned Value is {ValueReturnedByDelegate}");
Console.ReadKey();
}
private static void Rectange()
{
program rect = new program();
RectangelDegate rectDelegate = new RectangelDegate(rect.GetArea);
rectDelegate += rect.GetPerimeter;
rectDelegate(23.45, 67.89);
rectDelegate.Invoke(13.45, 76.89);
//Removing a method from delegate object
rectDelegate -= rect.GetPerimeter;
rectDelegate.Invoke(13.45, 76.89);
}