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Its supposed to walk the BinaryTree inOrder Traverse, and print out the array in that order, here is my modification to the insertMethod, it looks like it reads the root and and rightSubtree with the...

Its supposed to take the different arguments and print out the right and left subtree, problem is, it reads the root but returns null for both left and right subtrees

So here is the code that I have. The problem is my insert method. It compiles, but it doesn't do so well in the test class I have set up for it.

package SystemandDesign.BinaryTree;

import...