In java

This lab implements the i. Auto

classes. Note:

a. Car i. Sedan

ii. Coupe b. Truck

i. Pickup ii. Semi

Do NOT create fields or methods other than those prescribed in the lab. You may use additional local variables.

Use the exact method names and field names as specified

Manipulate the toString methods so they give the correct output

Use super in your sub-class constructors watch the parameters, they must be exactly as specified

Create the following classes:

1. Auto: a. Import DecimalFormat

b. Fields:

Final: doors (# of doors), wheels (# of wheels), mpg, tank (tank capacity), SN (serial number)

Private: mileage, fuel (gallons of fuel in tank)

Private Static: numAutos (set to zero)

c. Methods:

Auto(int doors, int wheels, double pmpg, double ptank)

Initialize all final fields

Zero mileage

Full tank

Increment numAutos

Set SN to numAutos

Getter and setter for mileage need setter for Truck.drive

Getter and Setter for fuel need setter for Truck.drive

double drive(double miles)

double pump(double gallons)

toString

public String toString() {

DecimalFormat df = new DecimalFormat("#.#");

String s = "SN: "+SN+", "; s += doors+" doors, "; s += wheels+" wheels, "; s += df.format(mpg)+" mpg, "; s += df.format(fuel)+"/"+df.format(tank)+" fuel, "; s += df.format(mileage)+" mileage";

return s; }

vii. equals

public boolean equals(Object o) { if (o instanceof Auto) {

Auto a = (Auto)o;

return this.doors == a.doors && this.wheels == a.wheels && this.mpg == a.mpg && this.tank == a.tank;

} else { return false;

} }

2. Car always 4 wheels: a. Fields:

Final: passCap

Private: passengers

b. Methods:

Car(int passCap, int doors, double pmpg, double ptank)

Call super constructor

Initialize final fields

Zero passengers

Getter for passenger

int embark(int persons)

int disembark(int persons)

toString see output below

equals

public boolean equals(Object o) {

if (o instanceof Car) { Car c= (Car)o;

return this.passCap == c.passCap && super.equals(c); } else {

return false; }

}

3. Sedan always 4 doors and always 5 passCap a. Constructor only

4. Coupe always 2 doors and always 4 passCap a. Constructor only

5. Truck a. Import DecimalFormat

b. Fields:

Final: mpgPerTon

Private: cargo

c. Methods:

Truck(double mpgPerTon, int doors, int wheels, double pmpg, double ptank)

Call super constructor

Initialize final fields

Zero cargo

Getter for cargo

double load(double payload)

double unload(double payload)

Override double drive(double miles)

double mpgActual = mpg + mpgPerTon * cargo;

if mpgActual <= 0; truck is too heavy; set fuel to 0 and return 0;

else change mileage and fuel as in Auto.drive, except use mpgActual instead of mpg in

calculations

NOTE: You must use getters and setters

toString

public String toString() { DecimalFormat df = new DecimalFormat("#.#");

String s = "Truck, "; s += super.toString()+", "; s += df.format(mpgPerTon)+" mpg/ton, ";

s += df.format(cargo)+" cargo";

return s; }

vii. equals

public boolean equals(Object o) { if (o instanceof Truck) {

Truck t= (Truck)o;

return this.mpgPerTon == t.mpgPerTon && super.equals(t); } else {

return false; }

}

6. Pickup:

Constructor

toString see output below

equals this only calls super.equals

7. Semi:

Constructor

toString see output below

equals this only calls super.equals

8. TestAuto:

public static void main(String[] args)

Declare and new ArrayList of Auto called autos

Add the following to autos:

Coupe(20, 10) Coupe(20, 10) Coupe(25, 11) Sedan(20,12) Sedan(25,12) Sedan(20,12) Pickup(-5, 2, 4, 16, 12) Pickup(-6, 2, 6, 20, 16) Semi(-0.5, 2, 18, 8, 40) Semi(-0.2, 4, 18, 6, 50)

Print Initial autos

Print all autos see output

Print Embark, Load, Drive

Enhanced for loop through all autos

If it is a car, embark 10 passengers

If it is a pickup, load 3.2 tons

If it is a semi, load 15 tons

NOTE: you must cast to the right type

Drive all autos 100 miles

Print all autos

Print Disembark, unload, pump

Enhanced for loop through all autos

If it is a car, disembark 5 passengers

If it is a truck, unload 10 tons

NOTE: you must cast to the right type

Pump 30 gallons into all autos

Print all autos

Sample output

Initial autos

[Car, SN: 1, 2 doors, 4 wheels, 20 mpg, 10/10 fuel, 0 mileage, 0/4 passengers] [Car, SN: 2, 2 doors, 4 wheels, 20 mpg, 10/10 fuel, 0 mileage, 0/4 passengers] [Car, SN: 3, 2 doors, 4 wheels, 25 mpg, 11/11 fuel, 0 mileage, 0/4 passengers] [Car, SN: 4, 4 doors, 4 wheels, 20 mpg, 12/12 fuel, 0 mileage, 0/5 passengers] [Car, SN: 5, 4 doors, 4 wheels, 25 mpg, 12/12 fuel, 0 mileage, 0/5 passengers] [Car, SN: 6, 4 doors, 4 wheels, 20 mpg, 12/12 fuel, 0 mileage, 0/5 passengers] [Pickup Truck, SN: 7, 2 doors, 4 wheels, 16 mpg, 12/12 fuel, 0 mileage, -5 mpg/ton, 0 cargo]

[Pickup Truck, SN: 8, 2 doors, 6 wheels, 20 mpg, 16/16 fuel, 0 mileage, -6 mpg/ton, 0 cargo] [Semi Truck, SN: 9, 2 doors, 18 wheels, 8 mpg, 40/40 fuel, 0 mileage, -0.5 mpg/ton, 0 cargo]

[Semi Truck, SN: 10, 4 doors, 18 wheels, 6 mpg, 50/50 fuel, 0 mileage, -0.2 mpg/ton, 0 cargo]

Embark, Load, Drive [Car, SN: 1, 2 doors, 4 wheels, 20 mpg, 5/10 fuel, 100 mileage, 4/4 passengers] [Car, SN: 2, 2 doors, 4 wheels, 20 mpg, 5/10 fuel, 100 mileage, 4/4 passengers] [Car, SN: 3, 2 doors, 4 wheels, 25 mpg, 7/11 fuel, 100 mileage, 4/4 passengers] [Car, SN: 4, 4 doors, 4 wheels, 20 mpg, 7/12 fuel, 100 mileage, 5/5 passengers] [Car, SN: 5, 4 doors, 4 wheels, 25 mpg, 8/12 fuel, 100 mileage, 5/5 passengers] [Car, SN: 6, 4 doors, 4 wheels, 20 mpg, 7/12 fuel, 100 mileage, 5/5 passengers] [Pickup Truck, SN: 7, 2 doors, 4 wheels, 16 mpg, 0/12 fuel, 0 mileage, -5 mpg/ton, 3.2 cargo] [Pickup Truck, SN: 8, 2 doors, 6 wheels, 20 mpg, 0/16 fuel, 12.8 mileage, -6 mpg/ton, 3.2 cargo] [Semi Truck, SN: 9, 2 doors, 18 wheels, 8 mpg, 0/40 fuel, 20 mileage, -0.5 mpg/ton, 15 cargo] [Semi Truck, SN: 10, 4 doors, 18 wheels, 6 mpg, 16.7/50 fuel, 100 mileage, -0.2 mpg/ton, 15 cargo]

Disembark, unload, pump [Car, SN: 1, 2 doors, 4 [Car, SN: 2, 2 doors, 4 [Car, SN: 3, 2 doors, 4 [Car, SN: 4, 4 doors, 4 [Car, SN: 5, 4 doors, 4 [Car, SN: 6, 4 doors, 4 [Pickup Truck, SN: 7, 2 cargo]

[Pickup Truck, SN: 8, 2 cargo] [Semi Truck, SN: 9, 2 doors, 18 wheels, 8 mpg, 30/40 fuel, 20 mileage, -0.5 mpg/ton, 5 cargo] [Semi Truck, SN: 10, 4 doors, 18 wheels, 6 mpg, 46.7/50 fuel, 100 mileage, -0.2 mpg/ton, 5 cargo]