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public class Employee
{
private string name;
private int id;
public Employee(string s, int i)
{
name = s;
id = i;
}
public string Name
{
get { return name; }
set { name = value; }
}
public int ID
{
get { return id; }
set { id = value; }
}
}
public class GenericList<T> where T : Employee
{
private class Node
{
private Node next;
private T data;
public Node(T t)
{
next = null;
data = t;
}
public Node Next
{
get { return next; }
set { next = value; }
}
public T Data
{
get { return data; }
set { data = value; }
}
}
private Node head;
public GenericList() //constructor
{
head = null;
}
public void AddHead(T t)
{
Node n = new Node(t);
n.Next = head;
head = n;
}
public IEnumerator<T> GetEnumerator()
{
Node current = head;
while (current != null)
{
yield return current.Data;
current = current.Next;
}
}
public T FindFirstOccurrence(string s)
{
Node current = head;
T t = null;
while (current != null)
{
//The constraint enables access to the Name property.
if (current.Data.Name == s)
{
t = current.Data;
break;
}
else
{
current = current.Next;
}
}
return t;
}
}