单项选择题
A. B
B. The code runs with no output.
C. An exception is thrown at runtime.
D. Compilation fails because of an error in line 15.
E. Compilation fails because of an error in line 18.
F. Compilation fails because of an error in line 19.
单项选择题 11.classA { 12. public void process() { System.out.print(”A “); } } 13. class B extends A { 14. public void process() throws RuntimeException { 15. super.process(); 16. if (true) throw new RuntimeException(); 17. System.out.print(“B”); }} 18. public static void main(String[] args) { 19. try { ((A)new B()).process(); } 20. catch (Exception e) { System.out.print(”Exception “); } 21. } What is the result?()
单项选择题 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?()
单项选择题 33. try { 34. // some code here 35. } catch (NullPointerException e1) { 36. System.out.print(”a”); 37. } catch (RuntimeException e2) { 38. System.out.print(”b”); 39. } finally { 40. System.out.print(”c”); 41. } What is the result if a NullPointerException occurs on line 34?()