試題詳解

複選題
第18題 Given: 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? (Choose two.)
(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);}