// A simple program that uses overloaded constructors to work out the distance a vehicle can go.

class Cons {

	//initialise variables.
	double mpg, fuel_cap, boot_space, fuel_result, distance;
	String vehicle_name;

	// create first constructor without bootspace
	Cons(double mpg, double fuel_cap, String vehicle_name) {
		this.distance = distance;
		this.mpg = mpg;
		this.fuel_cap = fuel_cap;
		this.vehicle_name = vehicle_name;

		distance = this.fuel_cap * this.mpg;
	}

	// creat second construtor with boot space
	Cons(double mpg, double fuel_cap, double boot_space, String vehicle_name) {
		this.distance = distance;
		this.mpg = mpg;
		this.fuel_cap = fuel_cap;
		this.boot_space = boot_space;
		this.vehicle_name = vehicle_name;

		distance = this.fuel_cap * this.mpg;
	}
}

	class MainTest2 {
		public static void main(String args[]) {

			// create objects, note the 3rd object specifies boot space.
			Cons mpgcalc1 = new Cons(30, 60, "Avensis");
			Cons mpgcalc2 = new Cons(23, 23, "Rav 4");
			Cons mpgcalc3 = new Cons(12, 54, 40, "Bat Mobile");

			// Print all the values of the objects.
			System.out.println("The " + mpgcalc1.vehicle_name + " has a fuel capacity of "
			+ mpgcalc1.fuel_cap + "gals");
			System.out.println("On a full tank it can go " + mpgcalc1.distance + " miles");

			System.out.println();

			System.out.println("The " + mpgcalc2.vehicle_name + " has a fuel capacity of "
			+ mpgcalc2.fuel_cap + "gals");
			System.out.println("On a full tank it can go " + mpgcalc2.distance + " miles");

			System.out.println();

			System.out.println("The " + mpgcalc3.vehicle_name + " has a fuel capacity of "
			+ mpgcalc3.fuel_cap + "gals");
			System.out.println("on a full tank it can go " + mpgcalc3.distance + " miles");
			System.out.println("It also has a boot space of " + mpgcalc3.boot_space);

			System.out.println();
		}
	}