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 = newCarbonFootprint[2];
  obj[0] = new CarbonFootprint(20);
  obj[1] = new Car(30);
   System.out.println(\"Carbon Foot Print foreach item (lbs):\n\");
   //additional info for to give general idea ofprogram
   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 anobject
   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 voidGetCarbonFootprint(){
     System.out.printf( \"Car that hasused %.2f gallons of gas: %.2f\n\",
         gallons,gallons * 20 );
  } // end function GetCarbonFootprint
} // end class Car
