Question: 20. Refer to the incomplete binary search tree implementation given below. The class Tree is a BST of TreeNodes. The Tree method printXxx calls xxxPrint

 20. Refer to the incomplete binary search tree implementation given below.
The class Tree is a BST of TreeNodes. The Tree method printXxx

20. Refer to the incomplete binary search tree implementation given below. The class Tree is a BST of TreeNodes. The Tree method printXxx calls xxxPrint to print the values in the nodes of the BST. public class Treel public Tree (0 root-null; public void printXxx (0 if (root - null) xxxPrint (root) public void xxxPrint (TreeNode current) ListQueue q new ListQueue (): q.enqueue (current) while (lq.isEmpty D)X Object temp = q.dequeue (); Current = (TreeNode) temp; System.out.print (current.getValue ()+ if (current.getLeft () null) q.enqueue (current.getleft O): if (current.getRight () I- null) q.enqueue (current.getRight 0)

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