private static void RedBlackTreeDemo()
{
RedBlackTree tree = new RedBlackTree();
int choice = 1;
do
{
Console.Clear();
Console.WriteLine("1.Display the Tree\n2.Insert a node\n3.Delete a node\n4.Search a node\n5.Find Number of elements\n6.Find Height of the tree\n7.InOrderTraverse" +
"\n8.PreOrderTraverse\n9.PostOrderTraverse\n10.LevelOrderTraverse\n11.Exit\nPlease enter a choice");
choice = Convert.ToInt32(Console.ReadLine());
switch (choice)
{
case 1:
tree.display(tree.Root, 1);
Console.ReadKey();
break;
case 2:
Console.WriteLine("Enter the element to add\n");
int value = Convert.ToInt32(Console.ReadLine());
bool result = tree.Insert(ref tree.Root, value);
if (result)
{
Console.WriteLine("Added successfully");
}
else
{
Console.WriteLine("Could not add the element");
}
Console.ReadKey();
break;
case 3:
Console.WriteLine("Enter the element to delete\n");
int valueToDelete = Convert.ToInt32(Console.ReadLine());
bool delResult = tree.Delete(ref tree.Root, valueToDelete);
if (delResult)
{
Console.WriteLine("Deleted successfully");
}
else
{
Console.WriteLine("Could not delete the element");
}
Console.ReadKey();
break;
case 4:
Console.WriteLine("Enter the element to search\n");
int valueToSearch = Convert.ToInt32(Console.ReadLine());
bool searchResult = tree.Search(ref tree.Root, valueToSearch);
if (searchResult)
{
Console.WriteLine("The element exists");
}
else
{
Console.WriteLine("The element doesn't exists");
}
Console.ReadKey();
break;
case 5:
int numberOfElements = tree.FindNumberOfElements(ref tree.Root);
Console.WriteLine("The total number of elements in the tree is " + numberOfElements);
Console.ReadKey();
break;
case 6:
int heightOfTree = tree.FindHeightOfTree(ref tree.Root);
Console.WriteLine("The total height of the tree is " + heightOfTree);
Console.ReadKey();
break;
case 7:
tree.InOrderTraverse(tree.Root);
Console.ReadKey();
break;
case 8:
tree.PreOrderTraverse(tree.Root);
Console.ReadKey();
break;
case 9:
tree.PostOrderTraverse(tree.Root);
Console.ReadKey();
break;
case 10:
tree.LevelOrderTraverse(tree.Root);
Console.ReadKey();
break;
case 11:
break;
default:
Console.WriteLine("Please enter a valid choice");
Console.ReadKey();
break;
}
} while (choice != 11);
}