Object Oriented Programming (OOPs)

Question : 48 of 72

Marks: +1, -0

Given:

abstract class Vehicle { public int speed() { return 0; }
class Car extends Vehicle { public int speed() { return 60; }
class RaceCar extends Car { public int speed() { return 150; }
...
RaceCar racer = new RaceCar();
Car car = new RaceCar();
Vehicle vehicle = new RaceCar();
System.out.println(racer.speed() + ", " + car.speed()
 + ", " + vehicle.speed());

What is the result?

0, 0, 0
150, 60, 0
Compilation fails.
150, 150, 150
An exception is thrown at runtime.

Validate

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