exception

问题 "Given that FileInputStream’s constructor throws FileNotFoundException, which is a subclass of Exception, write the header for a public method named process that takes a String parameter and returns nothing, and whose body instantiates a FileInputStream object and does not contain a try-catch statement." I know it's a too-simple question but I want to make sure I'm not messing up in a dumb way. Also, not sure whether to use FileNotFoundException or just Exception or IO, etc. public process

问题 My function needs one argument words, but i want the program not to crash if no argument. def get_count(words): try: consonants_str = "bcdfghjklmnpqrstvwxyzBCDFGHJKLMNPQRSTVWXYZ" vowels_str = "aeiouAEIOU" consonants_ls = [] vowels_ls = [] words_ls = [] result = {"vowels": 0, "consonants": 0}` for element in consonants_str: consonants_ls.append(element) for element in vowels_str: vowels_ls.append(element) if type(words) != type(None): for element in words: words_ls.append(element) for element

问题 My function needs one argument words, but i want the program not to crash if no argument. def get_count(words): try: consonants_str = "bcdfghjklmnpqrstvwxyzBCDFGHJKLMNPQRSTVWXYZ" vowels_str = "aeiouAEIOU" consonants_ls = [] vowels_ls = [] words_ls = [] result = {"vowels": 0, "consonants": 0}` for element in consonants_str: consonants_ls.append(element) for element in vowels_str: vowels_ls.append(element) if type(words) != type(None): for element in words: words_ls.append(element) for element

问题 My function needs one argument words, but i want the program not to crash if no argument. def get_count(words): try: consonants_str = "bcdfghjklmnpqrstvwxyzBCDFGHJKLMNPQRSTVWXYZ" vowels_str = "aeiouAEIOU" consonants_ls = [] vowels_ls = [] words_ls = [] result = {"vowels": 0, "consonants": 0}` for element in consonants_str: consonants_ls.append(element) for element in vowels_str: vowels_ls.append(element) if type(words) != type(None): for element in words: words_ls.append(element) for element

问题 I understand (now) that Response.Redirect() and Response.End() throw a ThreadAbortException as an expensive way of killing the current processing thread to emulate the behaviour of ASP Classic's Response.End() and Response.Redirect methods. However. It seems intermittently in our application that the exception bubbles too high. For example, we have a page that is called from client side javascript to return a small string to display in a page. protected void Page_Load(object sender, EventArgs

问题 I'm using kotlin in one of my Android classes and it seems like an IllegalStateException sometimes pops up on this line, when trying to get an extra from a Bundle . keyOrTag = bundle.getString("tag") And the val is declared like this val keyOrTag: String Unfortunately I don't have the full stack trace as I've noticed this from the GP Console. 回答1: Okay I believe I know why that happens. Posting it as an answer so that others with a related issue could see. The String "tag" added to the bundle

问题 Are there any good exception notification systems for web apps using Tomcat? Looking for libraries equivalent of exception_notification etc. which are available as plugins for Rails. 回答1: Have a look at http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/net/SMTPAppender.html from log4j and also an extension I'm describing at http://blog.cherouvim.com/a-better-smtpappender/ 来源： https://stackoverflow.com/questions/2242756/exception-notification-in-java

问题 I am writing a custom .Net SDK for the mapping program MapInfo Pro, mapinfo only exposes two methods to use over COM void Do(string cmd) and string Eval(string cmd) . When you use one of these methods and you do something invaild, it returns a a COMException with a error message and I get the error code from MapInfo. So for example an error message looks like this: 418 "Table not found." Now I would like to throw some kind of meaning full exception rather then just a exception with a number

问题 In our real application we get an OverflowException when trying to convert SqlDecimal value of 99 to System.Decimal. The exception is thrown because SqlDecimal's precision is higher than System.Decimal's precision. Here is a test that reproduces the issue: [Test] public void SqlDecimalToDecimalOverflowTest() { // in our real application d1 & d2 are loaded from a database; both are declared as DECIMAL(28, 5) // for test purposes I recreate identical SqlDecimal objects here: var d1 = new

问题 This question already has answers here : Rethrowing an Exception: Why does the method compile without a throws clause? (6 answers) Closed 3 years ago . I came across a weird scenario in java today while coding around. I have a try..catch block in my method which does not have any throws clause and I am able to throw the exception object caught in the catch block. It is an object of the Exception class, hence it is not an unchecked exception. Also, It is not printing the stacktrace if