多选题 Given:
2. class Wheel {
3. Wheel(int s) {size = s; }
4. int size;
5. void spin() {System.out.print(size + "inch wheel spinning, "); }
6. }
7. public class Bicycle {
8. public static void main(String[] args) {
9. Wheel[] wa = {new Wheel(15), new Wheel(17)};
10. for(Wheel w: wa)
11. w.spin();
12. } }
Which are true? (Choose all that apply.)

A、 Compilation fails.
B、 If size was private, the degree of coupling would change.
C、 If size was private, the degree of cohesion would change.
D、 The Bicycle class is tightly coupled with the Wheel class.
E、 The Bicycle class is loosely coupled with the Wheel class.
F、 If size was private, the degree of encapsulation would change.

【正确答案】 E、F

【答案解析】