Given the following code: abstract class Vehicle { abstract void start(); }
class Car extends Vehicle { void start() { System.out.println("Car starting..."); } } What is the significance of the abstract keyword in the Vehicle class?

Question

Given the following code: abstract class Vehicle {     abstract void start(); } 
 class Car extends Vehicle {     void start() {         System.out.println("Car starting...");     } } What is the significance of the  abstract  keyword in the  Vehicle  class?

Answer

It prevents instantiation of the  Vehicle  class.

Answer

It indicates that the  start()  method must be implemented by any concrete subclass.

Answer

It allows creating an instance of the  Vehicle  class.

Answer

It makes the  Vehicle  class a final class.

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Given the following code: abstract class Vehicle { abstract void start(); }...

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