Question 77 : Variable Scope

Click the Exhibit button. Which three code fragments, added individually at line 29, produce the output 100?

10. class Inner {
11. private int x;
12. public void setX(int X) { this.x=x; }
13. public int getX() {return x;}
14. }
15.
16. class Outer {
17. private Inner Y;
18. public void setY( Inner y ) { this.y = y; }
19. public Inner getY() { return Y; }
20. }
21. 
22. public class Gamma {
23. public static void main( String[] args ) {
24. Outer o = new Outer();
25. Inner i = new Inner();
26. int n = 10;
27. i,setX( n );
28. o.setY( i );
29. // insert code here
30. System.out.println( o.getY().getX() );
31. }
32. }

Choose any 3.

A. n = 100;
B. i.setX( 100 );
C. o.getY().setX( 100 );
D. i = new Inner(); i.setX( 100 );
E. o.setY( i ); i = new Inner(); i.setX( 100 );
F. i = new Inner(); i.setX( 100 ); o.setY( i );