1. We have to calculate the area of a rectangle, a square and a circle. Create an abstract class 'Shape' with three abstract methods namely 'RectangleArea' taking two parameters, 'SquareArea' and 'CircleArea' taking one parameter each. The parameters of 'RectangleArea' are its length and breadth, that of 'SquareArea' is its side and that of 'CircleArea' is its radius. Now create another class 'Area' containing all the three methods 'RectangleArea', 'SquareArea' and 'CircleArea' for printing the area of rectangle, square and circle respectively. Create an object of class 'Area' and call all the three methods. 2. Repeat the above question for 4 rectangles, 4 squares and 5 circles. Hint- Use array of objects.

In Java!!!!!This is a multi-part question. Consider the following UML diagram on attached image: 1.Write Java classes corresponding to the UML diagram. 2. Write getters and setters for all classes 3. Write non-default constructors for each class that initializes all instance variables to values passed as arguments to the constructor 4. Write toString method for each class 5. Modify Vehicle class to maintain inventory (list of all vehicles created) and print the list. What variable(s) you need to add? What additional method(s) you need? What else needs to be modified in the Vehicle class? Do you need to modify any of the descendant classes and explain your answer (if not: why not; if yes, describe what changes). Vehicle {Abstract} manufacturer:String - color:String Car Truck TwoWheeler {Abstract} -numberOfDoors:int -numberOfAxels:int -passengerSeats:int -fuelType:String -fuelLevel:int -fuelType:String -numberOfSeats:int -fuelLevel:int Truck Motorcycle -numberOfAxels:int -fuelType:String…

• Create two subclasses for checking and saving accounts.A checking account has an overdraft limit, but a savings account cannot be overdrawn. Draw the UML diagram for the classes and then implement them. Write a test program that creates objects of Account, SavingsAccount, and CheckingAccount and invokes their toString() methods.