The block: catch (Exception ex) { System.out.println(“NumberFormatException”); } will catch all the exceptions, as the Exception class is the base class for all the exceptions. When you catch Exception, you catch all the exceptions that extend Exception, which, all the exceptions do. Hence it produces the error that RuntimeException has already been caught solved Analyze … Read more
All standard exceptions derive from std::exception, so catch that instead: try { // throw exception here } catch (const std::exception &e) { // handle exception here } solved How to catch any c++ standard exception?
Yes. For example, if you were trying to ‘catch’ an InvalidYearException, you would do something like this: try { // Your code (the code that will possibly cause an exception to be thrown) } catch(InvalidYearException exception) { // Your code (the code that will be executed when you ‘catch’ an InvalidYearException) // for example: System.out.println(“Error!” … Read more
This is a bad idea, but: def handle_nameerror(list_to_set, *varnames): for i in varnames: try: list_to_set.append(globals()[i]) except NameError: list_to_set.append(None) will work. 2 solved How to use NameError to define a variable in Python
How I went about in solving my issue: bool success = false; try { //try to send the message smtpmail.Send(message); success = true;//everything is good } catch (Exception err) { //error with sending the message errorMsg.Text = (“Unable to send mail at this time. Please try again later.”); //log the error errorLog.Log(err); //note errorLog is … Read more
It’s not the prettiest of code. Returning a string as a kind of status code is generally bad practice, because you don’t know the range of possible values which can be returned, and what they mean. At the very least consider integer or even enum (which is named). That being said, I would handle the … Read more
int arrayfirst[] [] ={{1,2,3},{2,3,4}}; int arraysecound[] [] ={{3,4,5},{6,7,8}}; here, arrayfirst and arraysecound contain two rows and three columns each (The number of inner curly braces separated by Comma signify number of rows, and the numbers written within these inner curly braces signify number of columns), so when you add their elements and try to store … Read more
Look at this code… May be it can help you… import java.util.InputMismatchException; //added the import import java.util.Scanner; // added the import class NumberHighException extends Exception { public NumberHighException() {} public NumberHighException(String str) { super(str); } public String toString() { return “NumberHighException”; } } class NumberLowException extends Exception { public NumberLowException() {} public NumberLowException(String str) { … Read more
We can throw Exception, provided we declare the method to throw the same Exception (throws Exception clause) or handle it (using try catch block) . Exception is a checked exception and these have to be handled but RuntimeException works because its unchecked Exception and for this we need not have a throws clause or handle … Read more
Based on your clarification from the comment, it seems you don’t need no try or catch. But exception handler instead. Just have your 400+ methods have to throw 400+ exceptions – they all will be processed in one handler. P.S. It seems most of SO folks cannot tell a negative answer from negative vote 2 … Read more
C++11 introduces the new header system_error for low level errors. It is possible to write your own error categories. This might be good starting point for writing your own error handling in modern C++. 7 solved c++ std::exception … may I have more please? [closed]
Since you were asked this question in an interview, the interviewer was probably trying to gain some knowledge about your understanding of principles behind C++ design. In this case, the principle the interviewer was looking to discuss is that in C++ you don’t pay for things that you do not explicitly request. Although bounds checking … Read more
To create an Exception in Java, you could do something like this: class GameException extends Exception { GameException() { super(); } GameException(String msg) { super(msg); } GameException(String msg, Throwable cause) { super(msg, cause); } GameException(Throwable cause) { super(cause); } } To use this Exception, you can do the following: if(!checkNumbers(num1, num2)) throw new GameException(); Where … Read more
As pointed out by Yksisarvinen, the new keyword works differently in java and c++. I removed the new and I am now able to catch the exception. solved I have a custom exception I want to throw in one function and catch in another, it isn’t working [closed]
I believe this is what you’re looking for. The jist is, the compiler needs to verify statically that you’re returning something from every code path. Because you’re using this extension method, it’s not able to deduce the fact, and you’re getting the error: CS0161 ‘Foo()’: not all code paths return a value solved Extension method … Read more