问题:
11.classa {
12. public void process() { System.out.print(”a,”); } }
13. class b extends a {
14. public void process() throws IOException {
15. super.process();
16. System.out.print(”b,”);
17. throw new IOException();
18. } }
19. public static void main(String[] args) {
20. try { new b().process(); }
21. catch (IOException e) { System.out.println(”Exception”); } }
What is the result?()
A . Exception
B . a,b,Exception
C . Compilation fails because of an error in line 20.
D . Compilation fails because of an error in line 14.
E . A NullPointerException is thrown at runtime.
11.classa {
12. public void process() { System.out.print(”a,”); } }
13. class b extends a {
14. public void process() throws IOException {
15. super.process();
16. System.out.print(”b,”);
17. throw new IOException();
18. } }
19. public static void main(String[] args) {
20. try { new b().process(); }
21. catch (IOException e) { System.out.println(”Exception”); } }
What is the result?()
● 参考解析
本题暂无解析