pleas solve it

* Consider the following attached class : * Consider a subclass PremiumCust. - PremiumCust has two additional instance variables DiscountPercentage (int) and AdditionalDiscount (int) both private. - Write an appropriate constructor for each of the classes making use of the constructor of the superclass in defining those of the subclass. - Override getAmount() method that returns - The Amount of an Invoice after deducting the DiscountPercentage and the AdditionalDiscount of (PremiumCust). IA - (Dis * IA/100) - AddDis - Make use of getAmount of the superelass. Override also toString() method for each class making use of the toString 0 method of the superclass in defining those of the subelasses. (toString 0 should return something that ean be printed on the sereen). - Create the following object from the subclass and print it on the screen. Invoice p1 = new PremiumCust(15673, "Fahd Abdullah", 8400,45,100); * Output should be like the following