class Airplane

Let's build a class that encapsulates the data of a small airplane!

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Your class should have the following private fields:

data type	name	description
String	manufacturer	builder of the airplane
String	model	model number of the airplane
double	cost	cost of the airplane
double	mtow	maximum take off weight
double	emptyWeight	weight without fuel or passengers
int	stallSpeed	stall speed in knots
int	maximumSpeed	maximum speed in knots

Constructors

Provide a no-argument constructor that fills the fields with the following 'generic' airplane: manufacturer = "Cessna" model = "172M" cost = 50000 mtow = 2450 emptyWeight = 1691 stallSpeed = 47 maximumSpeed = 130

Provide a constructor that fills the fields with the constructor's parameters. Suggested constructor header follows: public Airplane( String man, String mod, double c, double mtow, double ew, int ss, int ms )

General Accessors Provide an accessor for each field (yes, that's a lot of accessors). public String getManufacturer() { return manufacturer; } // example accessor

General Methods public double availablePayload( double gallonsOfFuel ) This method computes and returns the weight remaining after we load the aircraft with fuel, but no passengers. Aviation fuel, 100LL, weighs 6 pounds per gallon, so 40 gallons of fuel would weigh 240 lbs. To compute available payload, multiply the gallonsOfFuel parameter by 6 and subtract that number from mtow minus emptyWeight.

public double speedDifferential() This method returns the aircraft's maximum speed less its stall speed.