問題詳情
第14題Given:11. class Person{12. String name = "No name";13. public Person(String nm){name = nm;}14. }15.16. class Employee extends Person{17. String empID = "0000";18. public Employee(String id){empID = id;}19. }20.21. class EmployeeTest{22. public static void main(String[] args){23. Employee e = new Employee("4321");24. System.out.println(e.empID);25. }26. }What is the result?
(A) 4321
(B) 0000
(C) An exception is thrown at runtime.
(D) Compilation fails because of an error in line 18.
參考答案
答案：D
難度：適中0.66092
統計：A(30),B(8),C(19),D(115),E(0)