请教怎么定义这样的类

请问如何定义这样的类？
定义后我可以这样来用它：
protected ArrayList result = null;
MyClass mc = new MyClass();
result = mc.return_array();

string my0_1 = result[0].m_aaa;
string my0_2 = result[0].m_bbb;
int my0_3 = result[0].m_ccc;

string my1_1 = result[1].m_aaa;
string my1_2 = result[1].m_bbb;
int my1_3 = result[1].m_ccc;

......

可见，该类返回的result是一个数组，而每个数组元素有包含多个属性。
类的属性如m_aaa,m_bbb,m_ccc可以在定义类是先分别赋好值。
本人对定义类不太熟，请高人指教，谢谢！

[解决办法]

C# code

//实体类，users.csnamespace OwnerUsers{  public class Users  {    public Users(){}    private int _id;    private string _username;    private string _password;        public int ID    {      get{return _id;}      set{_id = value;}    }    public string Userame    {      get{return _username;}      set{_username= value;}    }    public string Password    {      get{return _password;}      set{_password= value;}    }  }}//Testnamespace OwnerUsers{  pulic class Test  {    public static void Main(string[] args)    {      List<Users> list = new List<Users>();      for(int i=0; i<5; i++)      {        Users user = new Users();        user.ID = 1;        user.Username = "U"+i.ToString();        user.Password = "P"+i.Tostring();        list.Add(user);      }      foreach(Users u in list)      {        Console.WriteLine("{},{1},{2}",u.ID,u.Username,u.Password);      }    }  }}