In the address-book-v3t project define a new checked, Ask an Expert

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In the address-book-v3t project, define a new checked exception class: Duplicate Key Exception. This should be thrown by the add Details method if either of the non-blank key fields of its actual parameter is already currently in use. The exception class should store details of the offending key(s). Make any further changes to the user interface class that are necessary to catch and report the exception.

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Computer Engineering, Engineering

Category:- Computer Engineering
Reference No.:- M92184309

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