try with () vs try with {} | Together Java | Page 1

random tide Jul 1, 2024, 7:27 AM

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Hi, is there a difference between

try(code) {other code}

and just try {code} ? thanks

crisp bearBOT Jul 1, 2024, 7:27 AM

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<@&987246399047479336> please have a look, thanks.

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Here is an AI assisted attempt to answer your question 🤖. Maybe it helps! In any case, a human is on the way 👍. To continue talking to the AI, you can use </chatgpt:1108714622413963314>.

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TJ-Bot

Hi, is there a difference between try(code) {other code} and just try {code} ? thanks

The difference between using try(code) {other code} and just try {code} lies in the scope of the code within the try block.

When you use try(code) {other code}, the code within the parentheses is run, and then the other code inside the curly braces is executed. This allows you to specify a specific block of code to be tried, followed by additional code to be executed after that specific block.

On the other hand, when you use just try {code}, any exceptions that occur within the specified code block will be caught by the catch blocks associated with that try block. This means that all of the code within the try block will be treated as a single unit and any exceptions thrown will be caught and handled accordingly.

In summary, using try(code) {other code} allows you to specify a specific block of code to be tried, followed by additional code to be executed after that specific block. Whereas using just try {code} treats all of the code within the try block as a single unit for exception handling purposes.

pale prism Jul 1, 2024, 7:29 AM

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random tide Hi, is there a difference between try(code) {other code} and just try {code} ?...

former is called try-with-resources

random tide Jul 1, 2024, 7:29 AM

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in theses two case if I make a getRessource, at the end ressource will closed?

pale prism Jul 1, 2024, 7:29 AM

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yes

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its roughly equivalent to:

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AutoClosable foo = null;
try {
  foo = new ...
  ...
} finally {
  try {
    if (foo != null) foo.close();
  }
}

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compared to

try (AutoClosable foo = ...) {
  ...
}

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so it ensures that the resource is closed in all cases

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even more importantly if u create two resources

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then it can ensure that the second resource is also closed in case the first resource failed closing

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which people usually overlook if they write it themselves

random tide Jul 1, 2024, 7:31 AM

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finally is called after try/catch?

pale prism Jul 1, 2024, 7:32 AM

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finally is a block thats part of the try-catch construct which is always entered

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its entered if the try block completed normally and also if it threw an exception

random tide Jul 1, 2024, 7:33 AM

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because I have this code and I am note sur thaht the pool will be closed after

crisp bearBOT Jul 1, 2024, 7:33 AM

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random tide because I have this code and I am note sur thaht the pool will be closed after

Detected code, here are some useful tools:

pale prism Jul 1, 2024, 7:34 AM

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it wont

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unless its closed somewhere after that line

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hard to say without seeing the full code

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from jedisPool creation to end of usage

random tide Jul 1, 2024, 7:35 AM

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pale prism unless its closed somewhere after that line

it not

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and I can't just add jedisPool.getResource().subscribe(new Subscription(a), c) in () I think

pale prism Jul 1, 2024, 7:35 AM

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and ull also have to tell us what kind of type this variable is

random tide Jul 1, 2024, 7:35 AM

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so I should make a fnally?

pale prism Jul 1, 2024, 7:35 AM

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its hard to help u further without details

random tide Jul 1, 2024, 7:36 AM

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we are subscribing to a redis channel, c and a are string (subscription is a calss who extend jedis pub sub

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but is not important I think, the important Is just being sure that connection is closed after that

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if I put jedisPool.getResource().subscribe(new Subscription(a), c) in () it will work?

pale prism Jul 1, 2024, 7:37 AM

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please just share ur full code for that file

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we need to see the exact and full type of the variable

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and how u create and use it

random tide Jul 1, 2024, 7:37 AM

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okay one sec

pale prism Jul 1, 2024, 7:41 AM

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please just share ur full code for that file
we need to see the exact and full type of the variable
and how u create and use it

random tide Jul 1, 2024, 7:47 AM

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to be honest I don't finished the class it the beginn are you sure that is usefull ? I just want to close the pool

pale prism Jul 1, 2024, 7:48 AM

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ur delaying ur own help process

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please just share it

random tide Jul 1, 2024, 7:49 AM

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the class is not finished if u want, there is just this method

pale prism Jul 1, 2024, 7:56 AM

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random tide the class is not finished if u want, there is just this method

its up to u if u want my help or not. i wouldnt ask for it if i wouldnt need it in order to provide u with help

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i need to see the full type of this variable, where its created and its usages

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since u dont seem to really know what to share in order to give that, its best if u simply drag&drop the entire file

random tide Jul 1, 2024, 8:00 AM

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It's okay I finally found what I was looking for. I'm sorry for the late awneser. thanks

#try with () vs try with {}