delegate programming

Question

Write a Complete C# program to add and subtract two complex numbers by writing Add and Subtract methods which could be called through the delegate programming.

Ashutosh Chaturvedi · Answer

namespace MyFirstDelegate { //This delegate can point to any method //taking two integers and returning an //integer. public delegate int MyDelegate ( int x int y); //This class contains methods that MyDelegate will point to. public class MyClass { public static int Add( int x int y) { return x + y; } public static int Multiply( int x int y) { return x * y; } } class Program { static void Main( string [] args) { //Create an Instance of MyDelegate //that points to MyClass.Add(). MyDelegate del1 = new MyDelegate ( MyClass .Add); //Invoke Add() method using the delegate. int addResult = del1(5 5); Console .WriteLine( 5 + 5 = {0}
  addResult); //Create an Instance of MyDelegate //that points to MyClass.Multiply(). MyDelegate del2 = new MyDelegate ( MyClass .Multiply); //Invoke Multiply() method using the delegate. int multiplyResult = del2(5 5); Console .WriteLine( 5 X 5 = {0}  multiplyResult); Console .ReadLine(); } } }