Which of these objects can correctly invoke the method value

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Assume the classes described in Exercise 5 and consider a main method that contains the statements

a. Which of these objects can correctly invoke the method get Length?

b. Which of these objects can correctly invoke the method is Expression?

c. Which of these objects can correctly invoke the method value Of ?

d. Give an example of object-type compatibility by writing a method declaration and a call to it that could appear in this main method.

Reference no: EM131076782

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