[try-catch] Forum Topics

Is this try catch block enough to ensure the process ran successfully? protected boolean attemptLaunch() { try { System.out.println("Attempting to open '" + name + "'."); //Try to open the Process new ProcessBuilder(path).start(); return true; } catch (IOException e) { System.out.println("Opening failed. Will retry during next Iteration."); return false; } …

Are exceptions standardized in C++? I mean if the rules of exception handling might be changed in the future. i.e: int Funct1(int) throw(); // does it throw an exception?

Hi. Our homework is to use try...catch block in our calculator applet. I don't understand why the "catch" does not work. It will always go straight to the "finally". Here's the code: import java.applet.*; import java.awt.*; import java.awt.event.*; import java.awt.Label; import javax.swing.*; public class clsCalculator extends Applet implements ActionListener { …

I'm using VS 2012 and coding a try/catch block in an MS Access database project, but VS says OleDbException is not defined (see line 3 in the code). Anyone know why? I got some of this code from [here](http://social.msdn.microsoft.com/Forums/en-US/Vsexpressvb/thread/c822d48c-fd90-44a1-a186-a15e16966233/), and according to MSDN OleDbException is valid in vb.net Try data_adapter.Update(CType(binding_source.DataSource, …

Hi everybody, i have problem in my php code (it just showing nothing....means no error no results).......can anybody tell me what is wrong with this code.....i'm new to PHP........here is my code <?php try { $config=array( 'DB_USERNAME'=>'root', 'DB_PASSWORD'=>'' ); $conn=new PDO('mysql:host=localhost;dbname=scc',$config['DB_USERNAME'],$config['DB_PASSWORD']); $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); echo rand_id(); } catch(Exception $e) { echo …

Hey everyone! Happy New Year! I am trying to hone my programming skills by writing simple applications. I created a very simple currency converter program (hard-coded exchange rates....so nothing special). I first created it as a console app, and then in WPF. Anyway, I ran into an issue with the …

I am pretty new to programming in VB.Net, but I have been programming in other languages for a couple of decades now, including VB5/6 and C++. When I am using a **Try** - **Catch** block to handle exceptions, what is the point of a **Finally** section? Wouldn't it be just …

Hi, If I have a value inside the try{} how can I read it outside, is it possible try { int num=0; }

Write a java program that will open a file, read each of the records from the file, use that data to populate a two dimensional array and write the sorted data out to a new text file. Define a class named [B]Munge[/B] which will do all the 'heavy lifting' in …

hello, I am lik 98% done with this assignment where the user enters a number, and then it will output if you guessed the right number, or if you have any matching digits, so for example, the if the random number is 24 and the user inputs 20 it should …

I am trying to catch error on file input/output. The try functions works fine but as it pass to the next line my code breaks. How can I exit gracefully when the 'infile' doesnt exist? [CODE] try: infile = open ('Book1.txt', "r") except IOError: print "input file %s is missing" …

hi, i have this jquery page that is included in an html file and in that file i have a function with .dialog() i want to open a normal pop up if this dialog doesn't work.. i was wondering how ca i do this... will try() catch() work on this..? …

Oh. btw admin! sorry about my earlier thread. i promise not to do something like that ever again :) anyway. i was having trouble with my project and its about Multiplication with loops. i started with a few codes and im really frustrated with what im doing now. please let …

Unable to cast object of type 'System.String' to type 'System.Windows.Forms.TextBox'.

hey people, i have the following problem, i'm setting up a webshop with over 2k items and every 6months the prices are changing(wines) so i was wondering how to import an xml file into a mysql database without having to go in phpmyadmin. this because i don't want the people …

I'm having trouble figuring out how to use exceptions to check if a file stream was created successfully. I know I can use if statements, but how do I do this using try/catch statements? It compiles successfully but it gives me an error when I supply a non-existent filename as …