What are the errors in this code?

//1.

//Filename: CarbonFootprintTest.java //The file tests the Car class and CarbonFootprint class public class CarbonFootprintTest { public static void main (String [] args) {

CarbonFootprint[] obj = new CarbonFootprint[2]; obj[0] = new CarbonFootprint(20); obj[1] = new Car(30);

System.out.println("Carbon Foot Print for each item (lbs): "); //additional info for to give general idea of program for (CarbonFootprint test: obj) test.getCarbonFootprint();

}//end main method }//end class

//2. Filename: CarbonFootprint.java It only include

s one abstract method public class CarbonFootprint { //returns the carbon footprint of an object public void GetCarbonFootprint();

}//end interface

//3. Filename: Car.java public class Car extends CarbonFootprint { private double gallons; public Car( double g ){ gallons = g; } // end Car constructor // one gallon of gas yields 20 pounds of CO2 public abstract void GetCarbonFootprint(){ System.out.printf( "Car that has used %.2f gallons of gas: %.2f ", gallons, gallons * 20 ); } // end function GetCarbonFootprint } // end class Car