1: SearchTreeInterface<Person> myTree = new BinarySearchTree<Person>(); 2: Person whitney = new Person("Whitney", "111223333"); 3: Person returnValue = myTree.add(whitney); 4: 5: Person whitney2 = new Person("Whitney", "444556666"); 6: returnValue = myTree.add(whitney2); 7: 8: 9: returnValue = myTree.getEntry(whitney); 10: 11: returnValue = myTree.remove(whitney); 12: // Version 4.0