Class Hierarchy for Java Class
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Example 1: Create a mutable class Phone with two integer data fields: areaCode and number. Have two constructors, "getter" methods, and "setter" methods for each data field and a toString method.
Example 2: Derive a class cellPhone from class Phone that has two String data fields maker and service.
Example 3: Derive a class landPhone from class Phone that has two data fields address and longDistance.
Example 4: Derive a class cablePhone from class landPhone that has a data field cableProvider.
Example 5: Write a driver application that instantiates each of these classes and prints the results.
Example 6: Draw the UML diagram that relates these four classes.
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