public void Delete(Pkw pkw)
{
Pkw tmp = ersterPkw;
Pkw previousEntry = null;
bool deleted = false;
while (tmp != null)
{
if
(
pkw.GetFarbe() == tmp.GetFarbe() &&
pkw.GetKmStand() == tmp.GetKmStand() &&
pkw.GetMarke() == tmp.GetMarke() &&
pkw.GetModell() == tmp.GetModell() &&
pkw.GetType() == tmp.GetType()
)
{
deleted = true;
if (tmp == ersterPkw)
{
ersterPkw = tmp.GetNext();
tmp = null;
anzahlPkws--;
}
else if (tmp == letzterPkw && previousEntry == null)
{
tmp = null;
letzterPkw = ersterPkw = null;
anzahlPkws = 0;
}
else
{
previousEntry.SetNext(tmp.GetNext());
tmp = null;
anzahlPkws--;
}
Console.WriteLine("Deletion Success");
Console.Write("\n");
}
else
{
previousEntry = tmp;
tmp = tmp.GetNext();
}
}
if (deleted == false)
{
Console.Write("List doesn't contain the Object you wish to Delete \n");
}
Console.Write(Select());
}
public string Select()
{
Pkw tmp = ersterPkw;
string selectString = "";
while (tmp != null)
{
selectString += tmp.GetMarke() + " " + tmp.GetModell() + " " + tmp.GetFarbe() + "\n";
tmp = tmp.GetNext();
}
return(selectString);
}