1. Write the class Car which includes: a) 3 attributes: unique number plate (e.g. ABC123), brand (e.g. Toyota) and rental rate (e.g. $20). b) a zero-arg constructor and a mutli-arg constructor. c) Getter for brand attribute and setter for rate attribute. d) toString() method which overrides the Object's toString() method. e) equals() method which overrides the Object's equals() method. f) compareTo() method which implements the Comparable's compareTo() method. You should use the number plate only in the comparison