// IERG3080 Take Home Exercise 5

// Problem 3

// Name: Ho Chiu Fung

// SID: 1155070006

​

using System;

​

public delegate void ItemFoundCallback(int index);

​

public static class ItemFinder 

{   

    public static void FindItem(string[] list, string stringToFind, ItemFoundCallback callback) 

    {

        // TODO: implement this

        int i = 0;

        foreach (string s in list)

        {

            if (s == stringToFind) callback(i);

            i+=1;

        }

    }

}

​

public class Program

{

    public static void Announce(int i) 

    {

        Console.WriteLine("String found at index {0}!",i);

    }

    public static void Main()

    {

        string[] s = {"Pikachu", "Squirtle", "Ditto","Pikachu", "Ditto", "Dragonite"};

        Console.WriteLine("Finding Pikachu...");

        ItemFinder.FindItem(s,"Pikachu",Announce);

        Console.WriteLine("Finding Ditto...");

        ItemFinder.FindItem(s,"Ditto",Announce);

    }

}