public string getNext()
{
CDNode oldCurrent = current;
current = current.Previous;
return(oldCurrent.Artist);
}
private void btnPush_Click(object sender, EventArgs e)
{
CDNode cd = new CDNode();
cd.Artist = txtData.Text;
cd.Duration = Convert.ToInt32(nudMinutes.Value);
myst.push(cd);
}
}//push
public CDNode pop()
{
if (isEmpty())
{
return(null);
}
CDNode removed = top;
top = removed.Previous;
size--;
return(removed);
}//pop
}//pop
public String list()
{
if (isEmpty())
{
return("Stack is empty\n");
}
string output = "Contents of stack\n Nodes: " + size +
"\n";
CDNode current = top;
while (current != null)
{
output += "Artist: " + current.Artist + " Duration: " + current.Duration + "\n";
current = current.Previous;
}
return(output);
}//list
public StackIterator(SpindleStack collection)
{
this.collection = collection;
size = collection.getSize;
current = collection.peek();
}
}//is empty
public void push(CDNode sn)
{
sn.Previous = top;
top = sn;
size++;
}//push
public SpindleStack()
{
top = null;
size = 0;
}