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Not look at specific sections in the last lesson when we did them or at the very end we already looked

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at the supplement exceptions.

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Did the supplement exceptions work they can get off automatically by the try with resources Sendak's

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.

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So we were generating a one exception in the try block and the message was important exception.

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So this was the main exception that was being generated by this method called file copy with under exceptions

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that were being generated by these resources B and B do were embedded within what encapsulated within

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this exception I suppressed exceptions and we said that if we do not use private resources and data

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about if we use only try and finally Bross strike and finally block then only the exception the first

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exception that gets generated in the final block which would be one of these two would be to end by

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this method.

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I and the other two exceptions one is this one on one of them would be one of these.

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So both those exceptions will be ignored.

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So it be masked it's Carlos acception masking.

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And we said that we need to fix it manually.

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So that's what we are going to do here.

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So it's a continuation of their demo from the previous lesson.

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So there we had a file copy with him and we introduced two more matters on just one as file copy we

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thought.

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Which means that we are not using private resources syntax.

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So there is no automatic resource management.

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So it's just the same code.

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So since it is old fashioned try block so all the resources are declared outside and they're initialized

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inside the try block on everything else is seen we have generating that exception and then the finally

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block we are closing down resources.

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So we have this not clean looking court.

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So that's what we have.

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And in the main method we are again invoking this new method file copy we don't.

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So let me just read this.

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And as you can see only trivial exception to is being generated here.

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That's because that's the first exception that is getting generated here do.

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So that's the goes across.

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Throws the trivial exception to an exception and an important exception are simply are simply ignored

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.

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Ok so now to fix that we have this new method called Find copy we talked to.

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I just named or just do.

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Because you know it's kind of a solution that wasn't being offered as we should do.

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And we're hundred is handling exception masking biasa operation.

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So we are going to see how how the remaining two exceptions can be can be suppressed under and not suppressed

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in fact we want to just throw only this exception important exception like in the case of we three social

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Sendak's and the other two exceptions have to be suppressed exceptions within this exception.

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So for this it's just the same court but we're introducing this variable.

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Qualis Iowa exception it's a local variable and it is off by Aiwa exception.

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Now we have the tri block so in the earlier version there is only the trial and finally no catch block

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.

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But in this matter we also have the catch block.

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So when this gets executor distro motard gets ex-secret or die.

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The exception is generated with important exception so that gets caught here in this catch block and

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we're assigning this variable E to Iowa exception since Aiwa exception variable is also off by no exception

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.

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And then in the finally block here is how the resources acros we just check if Aiwa exception is not

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equal to.

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Let's say if I were exception was not generator.

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Then we go into the Alce block and we simply check if we do which is a first resource for does not equal

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to not for does not equal under it to be closed.

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But here on Aiwa exception was already generated.

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That is an important exception got generated and then we go inside and we once again do a check if B

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does not equal to none other.

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If it is not equal or not we close it.

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But if it also if the class met since the close method generates an exception we go into the catch block

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here and we added as in suppresive exception to the Aiwa exception which already got generated which

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is the important exception and could do that we have this new method and suppressed which is also part

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of the towable class.

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So it was also introduced in Java 7.

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But f here if Nuckols not look as if an important exception was not generated.

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So we will go into the else block and we are actually close indeed do.

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But if we do all since the two genders this exception then it could be caught here.

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And that exception will be directly assigned to Aiwa exception.

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That's because Aiwa exception is being generated for the first time.

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Now we need to also close the second mix of even though D2 throws an exception.

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We still have to close other resources.

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Otherwise Bill Haggarty Sosnik.

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So we go here we just again check Aiwa exception is not equal to null and this definitely could be not

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equal to null because not even the close method is throwing an exception.

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Of course another important exception is also being generated.

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So anyway it's just the same court only thing is being replaced by a deal with repellers might be here

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.

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So if there is an exception we go here and we check if B if we invoke disclose method here.

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And also gender's an exception.

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Once again we had we captured and we added to the main exception to the IWA exception.

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Otherwise we go into the old sloop and we just do this.

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We check if I mean Wilco's method and if it throws an exception we assign it to the Aiwa exception.

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Q So that's the first time that Aiwa exception is getting generated.

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Now the same thing is done for in resource and for the open source sensus the last resort.

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Once again we have the if else block.

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If I were the exception is not equal to invoke Glos method.

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And B if it throws an exception we catch it and we added to the Aiwa exception and then we threw the

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Iowa exception.

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So that's the exception that's getting thrown by this method.

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Now if that's not the case.

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So if I were exception our variable is not assigned a value so far which means no exception has been

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generated so far.

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Then we go into the envelope and we close up our true source.

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And if this is an exception then that would be the only exception that gets generated.

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So that is it.

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So let me just go ahead and run this.

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Make it two here

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and here you go.

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So now that is no more exception masking what we have is so pleasant exception on that as it looks exactly

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identical to the way we had four when we when we were using the tried with resource index.

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So you have that true somewhat as exceptions which are the trivial exceptions and the main exception

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is the important exception.

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OK so as you can see we have to write all of discord to get office of exceptions and private resources

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and Datsuns automatically handling all of this.

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So that's the nice thing about that.

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But Drive-Thru sources of Sendak's specific do only resources if you're not using recloser resources

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then you have to go get try finally block.

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So that's about it.

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Thank you.

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And happy coding on this new class will also be uploader to the resources section resources section