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Oracle

1Z0-851 · Question #258

1Z0-851 Question #258: Real Exam Question with Answer & Explanation

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Question

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?

Options

  • A0, 0, 0
  • B150, 60, 0
  • CCompilation fails.
  • D150, 150, 150
  • EAn exception is thrown at runtime.

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