Question: The nodes in a data set are objects of type: Listing. Give the signatures (the method headings that include types and parameters) for the four

The nodes in a data set are objects of type: Listing. Give the signatures (the method headings that include types and parameters) for the four basic operations if they are performed in the:

(a) Node number mode.

(b) Key field mode (assuming the key field is a String).

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