Question: Define an IndexTree class such that each node has data fields to store a word, the count of occurrences of that word in a document

Define an IndexTree class such that each node has data fields to store a word, the count of occurrences of that word in a document file, and the line number for each occurrences. Use an ArrayList to store the line numbers. Use an IndexTree object to store an Index of words appearing in a text file, and then display the index by performing an inorder traversal of this tree.

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