This folder contains: (ReadMe.txt )+ BTNode.java> to define a node of a binary tree (in general) BSTree.java> to define a binary search tree. Some methods to be implemented in lab 4 (Assignment 2) TestBSTree.java> to test the binary search tree implementation AVLNode.java> to define a node of an AVL tree AVLTree.java> skeleton class to define an AVL tree. (Some methods left for you to implement as an (unassessed) exercise). smallUnsorted1000,unsorted100 > text files containing integers between 0 and 1000 The files for BSTSet are available as part of assignment 2.