Amend the Critical class by adding a clone method as discussed in self-test question 4(c) and then amend the tester program you developed in the previous programming exercise to demonstrate the use of...

Amend the Critical class by adding a clone method as discussed in self-test question 4(c) and then amend the tester program you developed in the previous programming exercise to demonstrate the use of this clone method. Amend the Critical class further by adding the copy constructor discussed in self-test question 4(e) and then amend the tester program you developed in the previous programming exercise to demonstrate the use of this copy constructor.