Write a java class encapsulating the concept of an investment, assuming the investment has the following attributes: the amount of the investment and the interest rate at which the investment will be compounded. Include a constructor, the accessor and mutators, and methods toString and equeals. Also include a method returning the future value of the investment depending on how may years we hold it before selling it, which can be calculted using the formula:

future value = investment (1 + interest rate)^ numberof years.

We will assume the interest rate is compounded annually. Write a client class to test all the methods in your class