Write a c++ class called rectangle which has length and width private data members and an area() method which returns the area of the rectangle. also implement an info( method, which prints out the length, width and area of the rectangle. your class must also have a constructor rectangle(double i, double w), which sets the length and width when a rectangle object is being created. q6. design a class called student that describes a dcu student. the class should have data members name, id number, programme (e. g. ece) and year (e. g. 2). add a suitable constructor and a display method