Java Inheritance and Constructors

Question

Consider the following class definitions.
```
public class Vehicle {
   private int maxSpeed;
  Vehicle() {
    maxSpeed = 10;
   }
  Vehicle(int speed) {
    maxSpeed = speed;
  }
   public int getMaxSpeed() {
    return maxSpeed;
   }
}
public class Bicycle extends Vehicle {
  Bicycle() {
    super(15);
  }
}
```
Which of the following code snippets will compile without error?

Accepted Answer

Vehicle v3 = new Vehicle(30); 
int speed = v3.getMaxSpeed();

Answer

Bicycle b2 = new Vehicle();

Answer

Bicycle b1 = new Bicycle(20);

Answer

Vehicle v2 = new Bicycle(10); 
int speed = v2.getMaxSpeed();

Java Inheritance and Constructors

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