It is a polymorphisms question.. plz tell me what mistake I am doing in this code..

Question

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

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

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
{
public void resource()
{
System.out.println("I use electricity");
}
}

class HybridVehicle extends Vehicle
{
public void resource()
{
System.out.println("I use both petrol and electicity");
}
}

Answer 1

Thank U sir..

Answer 2

You're welcome..

Answer 3

Ok

Answer 4

Ok

Answer 5

Check spelling of electricity in last statement.

Answer 6

Hlo

Answer 7

Hi

Answer 8

Hello

Answer 9

two

Answer 10

Hi

Answer 11

Hello

Answer 12

Oh...