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Not let's look at something Goddard finally broke we have seen how exhibitions can be generated on how

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they can behind it.

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We also seeing how exceptions can affect the control for itself that is assoon as an exception is genderqueer

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rest of the block is squibbed and GBM stops looking for matching exception handler not really such a

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grow is fine.

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But sometimes the board might be using some operating system resources in such cases.

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You would have to become extra care for instance here is I want a sun method from them all for the sake

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of this discussion.

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The great catch block is movement with this method from the shared method also some of the code has

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been omitted.

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Now if you recall if distintion barometer has a value of zero.

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We will read the input data are we a local file.

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And we can use a file open stream class for the final stream would use operating system resources to

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connect to their destination.

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These system resources once used to be Glos appropriately to avoid any resource leaks this a medical

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Glos is in work on the final stream object so the question is valid will replace the last invocation

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statement so that it gets executed for sure.

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For instance you may and so did at the end of the play Brock but we know that in this case if an exception

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is generated let's say when creating a file or part stream object the rest of the try block is on JVM

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starts looking for a matching exception handler since the block is Glos method will not be invoked in

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this case.

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Another option is to place it at the end of the matter.

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But the problem with that is if an unchecked exception is generated due to whatever reason then it will

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not be caught by either of these to catch blocks uncontrolled and switched to the calling method unclose

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method will once again be knocking more among other options you ordered in the first guy you block.

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But if an exception is generated instead of why not one exception then controlling what goes into this

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first catch block.

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And once again grows is not in book know in addition to the first Gutch groc if you also in-circuit

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in the second catch block then that may still not help if some unchecked exception is generated even

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if that's not book is The Gordy's cluttered with multiple close calls.

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So what we need is love grows in vocations statement and it needs to be executed for sure.

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So we need a got into either an that we can use a finally block in this me.

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It's an optional block an event present at all residents.

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It would run even if an exception is generated and the corresponding exception handler is not present

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in this matter.

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Only exception would be when GBM engenders a severe error or a medical exit from the system class is

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invoked.

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Exit mentor is used to determine the JVM itself which should be done in only some really special cases

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.

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As we see in this example finally block usually condense any cleanup or.

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Another example would be closing of is going to Currence So if you have to do something for sure regardless

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of whether or not an exception is generated then you would use a fine liberal otherwise you wouldn't

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need it.

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Just know that finally block must follow any Gottsch blocks it cannot come in between a cry unaccountably

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up or in between Bukvich blocks but if not catch blocks exist then it must follow that try block so

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what that means is a dry rock must be accompanied by at least one catch block or finally broke.

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Also you can opt out more than one finally block associated with the try block.

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Not let's look at the control flow when a finally block is in mind letters you'll see how one or more

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statements that may generate exceptions and these statements are enclosed in their Tricot finally broke

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.

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So let's look at the cases when an exception is non-gender get.

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Also when it is genetic.

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Krusty is umed that no exception is generated then this is what would happen.

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Try block will be executed completely which will be followed by the finally block which is then followed

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by the code that comes after the finally block.

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But if an exception is generated then the rest of the block is skipped and GBM will check if there is

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a matching exception handler within that method and if there is a matching exception handler then that

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particular catch block is executed which will be followed by the finally block which is then followed

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by any code that comes after the final E-block.

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But if a matching exception handler is not found then the finally block is executed.

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But the important thing is in ecord following the finally block is gipped on control which is over to

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the working mother.

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And this process is repeated until a matching exception handler is fun.

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For example if we assume that the invoking meant that also includes a try catch finally block then the

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rest of the cries give.

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And if unmatching exception handler is not fun once again then the finally is executed but not any code

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following it.

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So that keeps repeating until the matching exception handler is phone.

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So the point here is if an exception is generated then you cannot exit to any court other than the court

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in a matching exception handler.

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And the finally block so that's above the control flow and it's not just this different control focuses

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in court.

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So let's switch over to equites OK here we are in the exceptions to mock glass in the sheer amount that

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we just discussed three control freak cases and we're going to test all three of them so we will at

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the finally block within this shared method are not in the sun method and the history behind us.

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So let's just go ahead.

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Cried the first case which was when an exception is not generated but in other words an exception is

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always Doniger.

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So we need to make some minor changes.

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First thing is let's pass one here.

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And if you pass one here or destination would be one in an Iowa exception will be generated.

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But since we don't want an exception to be gender so let's just call him and just out and go back here

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.

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And that's put in print statement here let's say after working seven which is good.

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And that's also how I finally block here.

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Inside she is finally.

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So let's just go ahead and run this

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so as you can see we are going into.

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There are no exception is thrown so sentiment that executes completely without any shoes and after dark

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after invoking sense statement as presented here an afterthought after the try block is executed completely

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and after that the finally block is executed.

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So it's been doing this.

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And finally the court after finally block is executed here and Afshar.

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And we are good with that.

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So that's the first case and second case was when an exception is generated and a matching exception

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handler is fun.

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So let's just uncommon this so an exception is generated and we have a matching exception handler here

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.

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OK.

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So let's just simply exhibit this.

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So now we're going into insights and then exception is gender Witan doesn't matter.

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So this statement so the rest of the trial escaped and the catch block is executed.

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So it Brent's kind of thing different so we're on after the catches executer finally is executed here

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and after finally the court after finally is executed which is not enough sure.

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OK.

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So that's the second case.

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And third one is the slightly complex case or more interesting case which is an exception is gender

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but a matching exception handler is not found in the matter.

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So let's just go ahead and pass zero here.

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And here for zero I find not one exception is generated.

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So undrunk comes back here but in the case we've discussed there is no matching exception handler within

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this method.

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But in this case we have a handler but we are still retrying the exception.

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So the control would go here.

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But then but then we are also throwing it retrying the exception.

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So it's a slightly more interesting case actually.

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So we are redrawing it.

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So in that case with the finally block we'll also the catch block will be exempted or defined and we

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will be executor.

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But the court after finally will not be exaggerated as we are reviewing it.

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So the GBM would look in the main method which is actually invoking the Sheremet there.

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So let's actually go ahead and try this.

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So it's zero.

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Let's put a print statement here also let's just say share Kallen why not for an exhibition.

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So that's good enough here.

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And we are throwing an exception to do during an exception there are let's just uncommon this out

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and let's put statement here after invoking share that meeting Goleman desart so they can grow together

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.

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Also come here in this Gottsch block.

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So let's just say Maine why not for an exception.

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And let's also put a maned finally here.

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Students execute that.

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So we are going into inside saying densify not one exception is generated.

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So can comes here and do the catch block in share bins this message here share Dunder inside shares

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finally is executed but important thing is if shared is not printed here ironed.

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So the controller goes back into the main matter on inside the main method there is a there is a catch

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block here matching Gutch block so it prints this message here.

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Main find not one exception.

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Then it goes into my inside Mayne's finally Anson's a catch block has already been encountered here

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.

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It burns and off main mentored.

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OK but if we are doing here then this message will not be printed.

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So after INSIDE Mayne's finally the program would actually dominate.

144

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OK so that's the only important difference.

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This particular statement will not be printed.

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So basically when an exception is generated no code will be executed except for unmatching got a matching

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exception handler block undefined on the block.

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All right.

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This goes on.

150

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So that's the third case and that's about it.

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Please go ahead and try this out and you can also find the good programs in the resources section.

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Thank you.

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And happy coding.