QUESTION 6

QUESTION 6 
Given: 
 
11. public interface A111 { 
12.     String s = "yo"; 
13.     public void method1(); 
14. } 
15. 
16. 
17. interface B {} 
18. 
19. 
20. interface C extends A111, B { 
21.     public void method1(); 
22.     public void method1(int x); 
23. } 
 
What is the result? 
 
A. Compilation succeeds. 
B. Compilation fails due to multiple errors. 
C. Compilation fails due to an error only on line 20. 
D. Compilation fails due to an error only on line 21. 
E. Compilation fails due to an error only on line 22. 
F. Compilation fails due to an error only on line 12. 
Solution : A 

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plus imformation 

제일 헷갈린 부분 

--> interface 간은 extends 가능