C#

HashSet< Person> allPeople=new HashSet< Person>();
allPeople.Add(...);

HashSet< Person> somePeople=new HashSet< Person>();
foreach(Person p in allPeople) if (p.EyeColour!="brown") somePeople.Add(p);

using System;
using System.Collections.Generic;

namespace Demo
    {
    class SaveResults
        {
        public string results;
        }

    class Program
        {
        public static List<saveresults> listResults = new List<saveresults>();
        static void Main(string[] args)
            {
            // blah de blah
            foreach (SaveResults sr in listResults)
                {
                // Handle results
                Console.WriteLine(sr.results);
                }
            }
        }

    class Processing
        {
        void DoSomething()
            {
            // Blah de blah
            SaveResults sr = new SaveResults();
            sr.results = "hello";
            Program.listResults.Add(sr);
            }
        }
    }
</saveresults></saveresults>

md_nada wrote:

but i installed the prerequisites?