问题:
现有:
1. class HorseRadish {
2. // insert code here
3. protected HorseRadish(int x) {
4. System.out.println("bok choy");
5. }
6. }
7. class Wasabi extends HorseRadish {
8. public static void main(String [] args) {
9. Wasabi w = new Wasabi();
10. }
11. }
分别插入到第 2 行,哪两项允许代码编译并产生"bok choy" 输出结果?()
A . // just a comment
B . protected HorseRadish() { }
C . protected HorseRadish() { this(42);}
D . protected HorseRadish() { new HorseRadish (42);}
现有:
1. class HorseRadish {
2. // insert code here
3. protected HorseRadish(int x) {
4. System.out.println("bok choy");
5. }
6. }
7. class Wasabi extends HorseRadish {
8. public static void main(String [] args) {
9. Wasabi w = new Wasabi();
10. }
11. }
分别插入到第 2 行,哪两项允许代码编译并产生"bok choy" 输出结果?()
● 参考解析
本题暂无解析