10. interface Foo { 11. int bar(); 12. } 13. 14. public class Beta { 15. 16. class A implements Foo { 17. public int bar() { return 1; } 18. } 19. 20. public int fubar( Foo foo) { return foo.bar(); } 21. 22. public void testFoo() { 23. 24. class A implements Foo { 25. public int bar() { return 2; } 26. } 27. 28. System.out.println( fubar( new A())); 29. } 30. 31. public static void main( String[] argv) { 32. new Beta().testFoo(); 33. } 34. } Which three statements are true?()
- A、 Compilation fails.
- B、 The code compiles and the output is 2.
- C、 If lines 16, 17 and 18 were removed, compilation would fail.
- D、 If lines 24, 25 and 26 were removed, compilation would fail.
- E、 If lines 16, 17 and 18 were removed, the code would compile and the output would be 2.
- F、 If lines 24, 25 and 26 were removed, the code would compile and the output would be 1.
正确答案:B,E,F
答案解析:有
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