answre this problem

[najam butt]

Q. 27
Given the following classes defined in separate files:

class Vehicle {
    public void drive() {
        System.out.println("Vehicle: drive");
    }
}
 
class Car extends Vehicle {
    public void drive() {
        System.out.println("Car: drive");
    }
}
 
public class Test {
    public static void main (String args [])     {
        Vehicle v;
        Car c;
        v = new Vehicle();
        c = new Car();
        v.drive();
        c.drive();
        v = c;
        v.drive();
    }
}

What will be the effect of compiling and running this class Test?
Generates a Compiler error on the statement v= c;
Generates runtime error on the statement v= c;
Prints out:
Vehicle: drive
Car: drive
Car: drive
Prints out:
Vehicle: drive
Car: drive
Vehicle: drive
Select the most appropriate answer.


[This message has been edited by Marilyn deQueiroz (edited October 16, 2001).]

[Bill Krieger]

I assume it comes out:
Vehicle: drive
Car: drive
Car: drive
What happened when you ran the code?

[Alan Mar]

I agree with Bill. This is an issue about dynamic binding of the overriden mehtods.