问题:
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); }
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?()
● 参考解析
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