Answer:
You would expect to use:
- Starting odometer reading,
- Ending odometer reading, and
- Gallons of gas used between the readings.
You would expect to use:
Car class
Think about
the classes you need
before you start writing.
This makes programming easier
and
your programs will have fewer bugs.
Object oriented design means deciding what classes you need,
what data the objects hold,
and how the objects will behave.
Let us do that with the Car class.
CarA class that calculates miles per gallon.
Variables
double startMiles; // Starting odometer readingdouble endMiles; // Ending odometer readingdouble gallons; // Gallons of gas used between the readingsConstructors
Car( double startOdo, double endingOdo, double gallons )
Creates a new instance of a Car object with the starting and ending odometer readings and the number of gallons of gas consumed.Methods
double calculateMPG()
calculates and returns the miles per gallon for the car.
Could a main() method create a Car object?