Create a class called Box which has private data members: length and width, both float area, found from length and width name which is a dynamic string constructor
1) create a contructor with default parameters of 1 for length and width.
2) the constructor should calculate ther area member frm length and width.
3) add a static member called total_area.In the constructor,add the area of the box created toi total_area variable.
4) add a comment with cout<