b. s wrong with the following code for interface? What should be changed to make

Question

b. s wrong with the following code for interface? What should be changed to make a valid interface for objects that have colors? public interface Colored private Color color; public color getColor() return colori Consider the following classes: public class Vehicle public class car extends Vehicle implements public class suv extends Car. c. Speed (...) Which of the following are legal statements? i. ii. Vehicle v = new Car(); Vehicle v = new SUV ( ); iii. Car c = new SUV(); iv. SUV s = new SUV ( ); SUV s = new Car(); Car c = new Vehicle(); v. vi. vii.Speed s new Car() viii. speed s = new SUV ( );

Explanation / Answer

b) An interface should contain:

1.All abstract method declarations which are public and static by default.

2.It may contains constants.

This is the valid Interface after modifying.

public interface Colored

{

public Color getColor();

}

________________

c)

i) Legal (As Super class reference can refer to the Sub class objects)

ii)Legal

iii)Legal

iv)Legal

v)illegal

vi) illegal

vii) Legal

viii) Legal

__________________Thank you

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