A common usage of catch and finally together is to obtain and use resources in a try block, deal with exceptional circumstances in a catch block, and release the resources in the finally block.
Questions tagged [try-catch-finally]
435 questions
0
votes
2 answers
C# Exception handling that won't break application
I am a green C# programmer and I'm trying to add exception handling to an application but unsure of the correct way to achieve the result I'm looking for. I'm parsing a CSV and grabbing values that are always in the same place. If a blank or…
Mitchel Belmer
- 25
- 6
0
votes
2 answers
Is there a way to handle error in a try-catch-finally if the error occurs after the finally block?
I was just curious. I have just written my first major code in C#, using try-catch-finally. I was wondering if there existed such a method to handle errors if there was additionally stuff to be processed after inside the finally block. Thanks.
LaDante Riley
- 521
- 4
- 14
- 26
0
votes
2 answers
Why return is not honoring the value of variable in finally block?
finally always gets executed last, so the statement x = 3 should be executed last. But, when running this code, the value returned is 2.
Why?
class Test {
public static void main (String[] args) {
System.out.println(fina());
}
…
Apurva Priyadarshi
- 33
- 4
0
votes
1 answer
Release open Connection in Java 8
I have a JSP/Servlet based application, the database team is complaining about the increase in open database connection.I suspect that the connection is not closed after use.
I want to make some code changes by initializing the connection string in…
BipinSasi
- 187
- 14
0
votes
3 answers
Recursion within a try-catch-finally block: How to only call the finally block one time, on the original function call?
Let's say I have a function named foo(). Within foo() there is a try-catch-finally block. Inside the catch block, foo() is called recursively.
My question is:
How can I have the finally block only execute once, on the original function call?
I want…
Sprag
- 69
- 11
0
votes
7 answers
Java: Hypothetical question about finally block
What happens if you throw an error in a finally block? Does it get handled in one of the corresponding catch clauses?
well actually
- 11,810
- 19
- 52
- 70
0
votes
1 answer
Itext5 document not closing properly
The following method is made in order to scale a pdf document to a desired format :
Document document = new Document(MarginsPDFHelper.DIM_PAGE, MarginsPDFHelper.MARGIN_GEN, MarginsPDFHelper.MARGIN_GEN, MarginsPDFHelper.MARGIN_TOP,…
Ramzi G.
- 59
- 1
- 10
0
votes
1 answer
How could I rework this code so as not to appear as if I am using exceptions as a form of flow-control?
I've heard it said that exceptions and try-catch blocks should not be used to flow-control, so I would like a way to rework this code to avoid that appearance.
I have a method validateTrainingSets, within a neuralNetwork class that does exactly what…
Tara
- 389
- 3
- 14
0
votes
0 answers
Java know in finally that exception thrown without any variable
Is there a way to know in finally that exception is thrown, without using any extra variable as below:
boolean hasFailed = true;
try { // code
//...
hasFailed = false;
} finally {
if (hasFailed) {
// handle failure
…
Ori Marko
- 56,308
- 23
- 131
- 233
0
votes
6 answers
C# - Define var outside the try block and return it
I am a newbie and trying to get back in the programming game. Sorry for my ignorance and lack of knowledge as well.
I am trying to see how to fix the return type error message in the code below. I know I can define the variable outside the try…
dbss
- 17
- 1
0
votes
3 answers
Nested try blocks with catches after finally
I want to write a code like this:
try {
try {
someStuffThatCausesBusinessExceptions();
} finally {
try {
cleanUp();
} catch (Exception e) {
// I don't really care
}
}
} catch…
Morse
- 1,330
- 2
- 17
- 27
0
votes
1 answer
Finally block not executed when using HttpClient
I'm working on an Xamarin.Forms application with MVVM. In my viewmodel I want to Get all the patients from an API. This is the code:
public async Task GetAllPatients()
{
try
{
isFetchingData = true;
…
Marijke
- 153
- 3
- 14
0
votes
2 answers
Why didn't the code printed the line after "finally"? (Java)
I have a method with a try and catch block, and the code after the finally statement did not print ("end of a" line).
The method threw an exception and I suspect this is the reason.
Is the reason for the line
System.out.println("end of…
Assaf
- 1,112
- 4
- 14
- 35
0
votes
0 answers
angularjs menu disappear after http call
I am using AngularJS, and when I use http call, the menu disappears if the request returns 404 not found.
When the http call is ok, every thing works fine.
this is my code
this.fetchList = function () {
var url = '/api/getlistmanager';
…
Majdi Taleb
- 731
- 3
- 9
- 26
0
votes
4 answers
Use Try-With-Resources instead of finally block when multiple lines in try block throws exception
Code Snippet :
InputStream inputStream = null;
try{
ExternalServiceObject object = externalService.getObject();
inputStream = object.getInputStream();
// further uses of inputStream
} catch(Exception e){
throw e;
} finally {
…
Kartavya Ramnani
- 800
- 9
- 17