1. interface A { public void aMethod(); } 2. interface B { public void bMethod(); } 3. interface C extends A,B { public void cMethod(); } 4. class D implements B { 5. public void bMethod() { } 6. } 7. class E extends D implements C { 8. public void aMethod() { } 9. public void bMethod() { } 10. public void cMethod() { } 11. } What is the result?()
- A、 Compilation fails because of an error in line 3.
- B、 Compilation fails because of an error in line 7.
- C、 Compilation fails because of an error in line 9.
- D、 If you define D e = new E(), then e.bMethod() invokes the version of bMethod()defined in Line 5.
- E、 If you define D e = (D)(new E()),then e.bMethod() invokes the version of bMethod() defined in Line 5.
- F、 If you define D e = (D)(new E()), then e.bMethod() invokes the version of bMethod() defined in Line 9.
正确答案:F
答案解析:有

微信扫一扫手机做题