Question: 20. Refer to the incomplete binary search tree implementation given below. The class Tr The Tree method printxxx calls xxxPrint to print the values in


20. Refer to the incomplete binary search tree implementation given below. The class Tr The Tree method printxxx calls xxxPrint to print the values in the nodes of the BST. ee is a BST of TreeNodes. public class Treet public Tree ( root null public void printXxx )i if (root!- null) xxxPrint (root); public void xxxPrint (TreeNode current)f ListQueue q = new ListQueue (); q.enqueue (current); while (!q.isEmpty 0)M Object temp = q.dequeue (); Current = (TreeNode) temp; System.out.print (current.getValue ()+"" if (current.getLeft () != null) q.enqueue (current.getLeft ); if (current.getRight () != null) q.enqueue (current.getRight ()
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