Question: Create a Rectangle class with length and width variables. Supply a constructor, toString ( ) , and getArea ( ) , and getPerimeter ( )

Create a Rectangle class with length and width variables. Supply a constructor, toString(), and getArea(), and getPerimeter() methods.
Implement a Square class that inherits from Rectangle class. Supply a constructor, toString(). The inherited getArea() and getPerimeter() methods should work fine.
Create an array of Rectangle type (to use Polymorphism) and populate it with some Rectangles and some Squares. Use an enhanced for loop to print the areas of objects in the array

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