Neither John()his father was able to wake up early enough to catch the morning train
31. // some code here 32. try { 33. // some code here 34. } catch (SomeException se) { 35. // some code here 36. } finally { 37. // some code here 38. } Under which three circumstances will the code on line 37 be executed?()
_____ that we couldn’t catch up with him.
为了能够在程序中捕获所有的异常,在catch语句的括号中使用的类名为()
Flu and How Not to Catch It This winter, in offices and workplaces throughout the country, people are at risk of becoming a health danger to their colleagues. These are the people who, carrying flu viruses, have dragged themselves in to work in (1) sp____ of the high temperature, headache, sore throat and cough they are (2) su____ from. Most experts agree that people with flu ought to stay at home, certainly in the case of those (3)____ jobs involve public safety-airline pilots, air traffic (4)____(control) and train drivers.
A diet rich in (5) ve____ and fruit and regular exercise may help people avoid the illness. Experts are (6)____(doubt) whether taking lots of vitamin C will (7)____ any difference, but reducing stress levels may help. Basic hygiene is certainly important, as well, especially in the office. We know that the illness can be passed on (8) f____ cups and saucers, so do more than simply rinse them under the tap with all the others. Wash them properly with hot water and use disinfectants to clean surfaces. Remember to wash your hands (9) reg____ and don’t touch your face, as flu enters the body through the eyes, nose and mouth. Other tips on prevention include (10)____ rid of cloth handkerchiefs, which provide a home for germs. Change to paper tissues and throw them away afterwards.
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?()
Flu and How Not to Catch It This winter, in offices and workplaces throughout the country, people are at risk of becoming a health danger to their colleagues. These are the people who, carrying flu viruses, have dragged themselves in to work in (1) sp____ of the high temperature, headache, sore throat and cough they are (2) su____ from. Most experts agree that people with flu ought to stay at home, certainly in the case of those (3)____ jobs involve public safety-airline pilots, air traffic (4)____(control) and train drivers.
A diet rich in (5) ve____ and fruit and regular exercise may help people avoid the illness. Experts are (6)____(doubt) whether taking lots of vitamin C will (7)____ any difference, but reducing stress levels may help. Basic hygiene is certainly important, as well, especially in the office. We know that the illness can be passed on (8) f____ cups and saucers, so do more than simply rinse them under the tap with all the others. Wash them properly with hot water and use disinfectants to clean surfaces. Remember to wash your hands (9) reg____ and don’t touch your face, as flu enters the body through the eyes, nose and mouth. Other tips on prevention include (10)____ rid of cloth handkerchiefs, which provide a home for germs. Change to paper tissues and throw them away afterwards.
try-catch-finally语句中()释放资源?
用main()创建一个类,令其抛出try块内的Exception类的一个对象。为Exception的构建器赋予一个字串参数。在catch从句内捕获异常,并打印出字串参数。添加一个finally从句,并打印一条消息。
C#中,在方法MyFunc内部的try..catch语句中,如果在try代码块中发生异常,并且在当前的所有catch块中都没有找到合适的catch块,则()。