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Java认证考试

睦霖题库>其他计算机考试>Java认证考试

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:
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