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
1
vote
2 answers
Try/Catch/Finally, use exception from Catch in Finally?
I've looked at a few other try catch finally questions on here but I'm not sure that this one has been answered. Does it smell bad to do something like:
Exception? ex = null;
try { //something }
catch (Exception e) { ex = e ;}
finally {
…
Jason
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1
vote
2 answers
Finally block not working in JAVA Stored procedure for Oracle
When I compile the below code, it shows error "cannot find symbol variable out"
But if i comment the code in the finally block, I am able to compile successfully.
Please advise.
public static int writeFile (String p_file_path, String p_data) throws…
Samrat Sarkar
- 13
- 2
0
votes
2 answers
Cannot find place to insert finally block to get rid of the error: Insert Finally to complete TryStatement
I've tried several spots to insert the finally block but no matter what I try it ends up making the code worse.
Here is my code, the 4th to last ending curly bracket is the one giving me the error. Any thoughts?
package com.tunestore.action;
…
Turk
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0
votes
7 answers
Exception Handling; Try Catch
Here's my code:
class FinallyDemo {
static void myMethod(int n) throws Exception{
try {
switch(n) {
case 1:
System.out.println("1st case");
return;
case…
Kraken
- 23,393
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- 162
0
votes
2 answers
using try vs TryCatch in R
My R code is as follows
errors = 0
for(i in c(1:100)){
tryCatch(expr = {
API Call
}, error = {errors=errors+1}, finally = {})
further code
}
The code is meant to continue execution even if the API call fails and count the number of…
Siddharth Somani
- 55
- 5
0
votes
0 answers
Is there a way to change a conditional using a Try/Catch/Finally block in Powershell 5.1?
Is there a way to do something similar to what is listed below:
Try{
if(<#conditional here#>)
}
catch[ArgumentOutOfRangeException]{
}
Finally{
#Set if statement to false, and run else statement
}
This is what…
Ralph Warner
- 21
- 4
0
votes
3 answers
Why does my counter variable not come back to 0 in a multithreaded scenario?
I'm building a Windows Service base class to manages the polling off a schedule's table of any pending task and the running them.
The Windows service is using the System.Timers.Timer to start the schedule's table polling.
I'm setting the…
Giuseppe Romagnuolo
- 3,362
- 2
- 30
- 38
0
votes
1 answer
Using tryCatch append output of user-defined functions to a list and warnings/Error messages to a vector in R
Suppose I have a Null vector and Null List -
ot_vec = c()
msg_lst = list()
Further, suppose I have many user-defined functions. Now I want to use a tryCatch to append the outputs of the user-defined functions in the Null list and the messages from…
Debojit Roy
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- 4
0
votes
1 answer
Try/catch block in an infinity loop to print out something, if there is an infinity loop
this is my code (which is an infinity while loop. I should implement a try/catch block here, so that it stops, because it's going to infinity. My professor says we should implement a 'OutOfMemoryError', but I'm not sure how. It still goes to…
commencer548
- 13
- 1
0
votes
1 answer
How to tryCatch the same function call multiple times (N times) in R
We have a basic tryCatch that writes a dataframe to Google Sheets, and trys again if the first write fails for any reason:
result = tryCatch({
print('TRYING')
googlesheets4::sheet_write(data = our_df, ss = our_spreadsheet, sheet =…
Canovice
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0
votes
0 answers
return does not wait for execution of for loop to complete
I have this function
const groupList = async (io, socket, userid) => {
try {
var response = {};
var data = []
ddb.get({
TableName: "TableName",
Key: { Username: userid }
}).promise()
.then(async (user) => {
const group =…
user15376850
0
votes
1 answer
finally block running before try block ends db call
I am performing input operation on db and trying to return response.
var response = {}
try {
db.put({},(err, data) => {
if(err) {
response["message"] = err.message
response["code"] = 400
…
user15376850
0
votes
1 answer
Powershell Catch Error: Unable to find a default server with Active Directory Web Services running
Need help to catch the error. Whenever my network connection is unstable my get-ad script will be terminated.
$ScriptDir = Split-Path $script:MyInvocation.MyCommand.Path
$Date = Get-Date -Format yyyy_MM_dd_THHmm
Start-Transcript -Path…
NOBODY519
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- 2
0
votes
2 answers
Python everything in try block
I am writing a large batch-type script in Python, and need to do some cleanup in the end, regardless of whether an exception occurred. To do this I'm simply putting the main program in a try block and the cleanup in a finally block.
This seems to…
Hypercube
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0
votes
1 answer
scanner.close() Does not work when I use try/finally
import java.util.Scanner;
public class userInput
{
public static void main(String[]args){
try{
Scanner scanner = new Scanner(System.in);
String name = scanner.nextLine();
int age =…
Ilias Matrane
- 3
- 1