static void Main(string[] args)
{
List <string> listUser = new List <string>();
listUser.Add("user1");
listUser.Add("user2");
listUser.Add("userhacker");
listUser.Add("userfukoff1");
Blacklist blacklist = new Blacklist();
blacklist.AddBlacklistedWord("hacker");
blacklist.AddBlacklistedWord("fukoff");
foreach (string user in listUser)
{
if (blacklist.ContainsBlacklistedWord(user))
{
Console.WriteLine("Contains blacklisted word: {0}", user);
}
}
}