1.In class Complex, define a multiply method that returns the product of two Complex numbers. Suppose you are trying to compute the product of two complex numbers a + bi and c + di. The real part will be ac bd, while the imaginary part will be ad + bc. Modify ComplexTest to test your solution.

2.Overload the add, subtract and multiply methods of your class, so that instead of taking one complex as an argument and returning a complex, they take two complex number as arguments and return the result in a new complex object. Make this methods static.