In this homework, you will implement a program with an object$-$oriented approach.

$1.$ Implement a Vehicle class with the following UML diagram.

$$ A Vehicle object represents a vehicle with a license plate number and size.

$$ The data field of size may take the values of $1,2,$ and $4.$

$($You may simply assume that $1$: motorcycle, $2$: car, $4$: truck$)$

$$ You have to use this keyword in the implementation of the constructor.

$$ Consider the following example which demonstrates the creation of a Vehicle object:

Vehicle vehicle $=$ new Vehicle$("34$CSE$1141",2)$;

$$ getPlateNumber method should return the plate number of the vehicle.

$$ getSize method should return the size of the vehicle.

$$ getVehicleInfo method returns a string containing the vehicle$$s license plate number and the size of the vehicle. An example string as the following:

Vehicle Info

Plate Number : $34$CSE$1141$

Size : $2$

$2.$