static void LoadDataFromFile(A_Hashtable <Person, Person> ht)
{
StreamReader sr = new StreamReader(File.Open("People.txt", FileMode.Open));
string sInput = "";
try
{
//Read a line from the file
while ((sInput = sr.ReadLine()) != null)
{
try
{
char[] cArray = { ' ' };
string[] sArray = sInput.Split(cArray);
int iSSN = Int32.Parse(sArray[0]);
Person p = new Person(iSSN, sArray[2], sArray[1]);
ht.Add(p, p);
}
catch (ApplicationException ae)
{
Console.WriteLine("Exception: " + ae.Message);
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
sr.Close();
}
static void LoadDataFromFileAndRemove(A_Hashtable <Person, Person> ht)
{
StreamReader sr = new StreamReader(File.Open("People.txt", FileMode.Open));
string sInput = "";
ArrayList al = new ArrayList();
int iCount = 0;
try
{
//Read a line from the file
while ((sInput = sr.ReadLine()) != null)
{
try
{
char[] cArray = { ' ' };
string[] sArray = sInput.Split(cArray);
int iSSN = Int32.Parse(sArray[0]);
Person p = new Person(iSSN, sArray[2], sArray[1]);
if (p.SSN == 478403546)
{
Console.WriteLine("");
}
;
ht.Add(p, p);
if (iCount % 10 == 0)
{
al.Add(p);
}
iCount++;
}
catch (ApplicationException ae)
{
Console.WriteLine("Exception: " + ae.Message);
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
Console.WriteLine("Count before removing: " + ht.Count);
//Remove every tenth person that is actually in the list.
try
{
foreach (Person p in al)
{
ht.Remove(p);
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
Console.WriteLine("Count after removing: " + ht.Count);
sr.Close();
}
static void TestEnumerator(A_Hashtable <Person, Person> ht)
{
int loops = 0;
foreach (Person kv in ht)
{
Console.WriteLine(kv.ToString());
loops++;
}
Console.WriteLine("Print loops executed: " + loops);
}
static void TestAdd(A_Hashtable <int, string> ht)
{
try
{
ht.Add(1, "Key 1");
ht.Add(11, "Key 11");
ht.Add(111, "Key 111");
ht.Add(47595, "bas");
}
catch (ApplicationException e)
{
Console.WriteLine(e.Message);
}
}
static void TestRemove(A_Hashtable <int, string> ht)
{
try
{
//ht.Remove(11);
ht.Remove(1);
ht.Remove(111);
}
catch (ApplicationException e)
{
Console.WriteLine(e.Message);
}
//ht.Remove(99999);
}
static void TestHT(A_Hashtable <Person, Person> ht)
{
LoadDataFromFileAndRemove(ht);
Person testPerson = new Person(478403546, "Rebecca", "Mann");
Console.WriteLine("Hash table type " + ht.GetType().ToString());
TestEnumerator(ht);
//Console.WriteLine(ht.ToString());
Console.WriteLine("# of people: " + ht.Count);
Console.WriteLine("Number of collisions: " + ht.NumCollisions);
Console.WriteLine("Person Found: " + ht.Get(testPerson));
Console.WriteLine("Person Found: " + ht.Get(testPerson));
Console.WriteLine("Person Found: " + ht.Get(new Person(20765921, "", "")));
Console.WriteLine("Person Found: " + ht.Get(new Person(725215354, "", "")));
Console.WriteLine("Person Found: " + ht.Get(new Person(111111111, "", "")));
Console.WriteLine("\n\n");
}
