1. class Super { 2. private int a; 3. protected Super(int a) { this.a = a; } 4. } ..... 11. class Sub extends Super { 12. public Sub(int a) { super(a); } 13. public Sub() { this.a= 5; } 14. } Which two, independently, will allow Sub to compile?()
- A、 Change line 2 to: public int a;
- B、 Change line 2 to: protected int a;
- C、 Change line 13 to: public Sub() { this(5); }
- D、 Change line 13 to: public Sub() { super(5); }
- E、 Change line 13 to: public Sub() { super(a); }
正确答案:C,D
答案解析:有
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