Write a program that adds and subtracts two polynomials. Implement the algorithm four different ways. The first two implementations will use arrays and the third will use pointers. The forth is a set of linked lists in an array. Use the following interface for the 4 classes: public interface PolynomialInterface { PolynomialInterface add(PolynomialInterface other);
// Effect: Adds value to owner of addPolynomial method.
// Postcondition: Return value = this + value. PolynomialInterface subtract(PolynomialInterface other);
// Effect: Subtracts value from owner of addPolynomial method.
// Postcondition: Return value = this - value. void readPolynomial();
// Postcondition: polynomial read. String toString();
// Postcondition: polynomial converted to string. }

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