QUESTION 4

QUESTION 4 

Given: 

class Thingy { 

Meter m = new Meter(); 

} 

class Component { 

void go() { 

System.out.print("c"); 

} 

} 

class Meter extends Component { 

void go() { 

System.out.print("m"); 

} 

} 

8. class DeluxeThingy extends Thingy {     

public static void main(String[] args) {

         DeluxeThingy dt = new DeluxeThingy();

         dt.m.go();

         Thingy t = new DeluxeThingy();

         t.m.go();

} 

} 

Which two are true? (Choose two.) 

 

A. The output is mm. 

B. The output is mc. 

C. Component is-a Meter. 

D. Component has-a Meter. 

E. DeluxeThingy is-a Component. 

F. DeluxeThingy has-a Component. 

 

Solution : AF