internal void InorderTraversal()
{
if (rootnode != null)
{
rootnode.InorderTraversal();
}
}
public void InorderTraversal()
{
if (leftnode != null)
{
leftnode.InorderTraversal();
}
Console.WriteLine(_data + " ");
if (rightnode != null)
{
rightnode.InorderTraversal();
}
}