Question

Public class Car {

Answer 1

Answer:

The Following are the outputs:

a. vroom

b. car 1

c. car 2

d. vroom

e. truck 1

f. car 2

Explanation:

The first statement System.out.println(mycar);  prints an instance of the Car object my car which calls the toString() method.

The second statement mycar.m1();  Calls the method m1() which prints car1

The third statement mycar.m2(); calls the method m2() which prints car2

Then another class is created Truck, and Truck inherits all the methods of Car since it extends Car. Truck has a method m1() which will override the inherited method m1() from the Car class.

The fourth statement System.out.println(mytruck); will print print vroom just as the first statement since it inherits that method toString()

The fifth statement calls m1() in the Truck class hence prints Truck 1

Finally the sixth statement will print car 2 because it also inherited that method and didnt overide it.