Hi guys whats wrong with this code?

Question

class Main {
public static void main(String[] args) {
Scanner myVar = Scanner (System.in);
Vehicle vehicle = new Vehicle();
Vehicle electric = new ElectricVehicle();
Vehicle hybrid = new HybridVehicle();

//calls
vehicle.start();
vehicle.resource();
electric.start();
electric.resource();
hybrid.start();
hybrid.resource();
}
}
class Vehicle{
public void start(){
System.out.println("Starting");
}
public void resource(){
System.out.println("I use petrol");
}
}

class ElectricVehicle extends Vehicle{
public void start(){
System.out.println("Starting");
}
public void resource(){
System.out.println("I use electricity");
/*reimplement resource() method
to output "I use electricity"*/

}

class HybridVehicle extends Vehicle{
public void start(){
System.out.println("Starting");
}
public void resource(){

Answer 1

// NEW
Scanner myVar = new Scanner(System.in);

Answer 2

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

Vehicle vehicle = new Vehicle();
Vehicle elVehicle = new elVehicle();
Vehicle hybrid = new HybridVehicle();

//calls
vehicle.start();
vehicle.resource();
elVehicle.start();
elVehicle.resource();
hybrid.start();
hybrid.resource();
}
}
class Vehicle{
public void start(){
System.out.println("Starting");
}
public void resource(){
System.out.println("I use petrol");
}
}

class elVehicle extends Vehicle{
/*reimplement resource() method
to output "I use electricity"*/
public void resource(){
System.out.println("I use electricity");
}
}

class HybridVehicle extends Vehicle{
/*reimplement resource() method
to output "I use both petrol and electricity"*/
public void resource(){
System.out.println("I use both petrol and electricity");
}
}

Answer 3

Thanks