How can I check if a thread has stopped?

I'm writing a program which is supposed to open a file, sort all the numbers from smallest to largest value, and then write the sorted list back into a new file. It is specified in the task that I have to use multiple threads, and because of that I have a question:
I want my program to check if all the threads have stopped before the program starts writing to the output file. Doing it with an if-sentence and/or using a boolean would be perfect, I think. Is there any way I can do this?

u can use Thread.isAlive() to know if the thread is still running.. else u can use Thread.join() that waits until the Thread excutes till completion..when you would know that the thread is completed

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How can I check if my iMac has this update? OS X Lion v10.7.5 Update

It's not technically challenging, but it isn't clearly necessary. In any case here's how:
Reinstalling Lion/Mountain Lion Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

How can i check if at&t has unlocked my phone

How can i check if at&t has unlocked my phone?

You should get an email from them to let you know the unlock request has successfully been processed. From there, you restore the phone as new and should get a message on its screen that says it's been unlocked.
If you haven't gotten the email, contact AT&T for an update.
~Lyssa

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One way is to read the web.xml file and determine the roles that have access to the page, then check whether the user has any of those roles.
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Just for the record, I decided to parse the web.xml file and to simulate whatever the container does.

How can i check the unzip file has finished unzip process?

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Edited by: rayray2008 on Feb 12, 2008 7:14 PM

Downloading and burning Linux or Windows ISO images for example with a single flipped bit can cause system instability nearly impossible to track down, and not otherwise detectable. An MD5 checksum (OR SHA) check will quickly detect any such transmission errors. Not something anyone I know bothers to use unless it's important data. The temporary fix of changing the about:config setting, then expanding to full screen in downloads was working. But now, based on my interpretation of comments made on the authors Sourceforge page, Firefox has made updates that prevent the MD5 Reborned Hasher from working in Firefox at all. If that's true, I would really like to know the reason. With all this talk of NSA spying, I would think more people would be interested in making sure someone isn't tampering with their downloads. I have no idea. But I do believe the wonderful volunteers at Firefox need to figure out a way to make this valuable piece of security software whole again. Thank You.
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Hello all
I am new to Mac and still feeling my way so please be gentle! I am not even sure if this is the right community to be in. My system runs 10.7.2 (is that lion, leaopard or penguin?)
Today I used Time Machine for the first time. Successfully formatted my external harddrive and did the first backup. Then uploaded all my photos from my camera using iphoto and did another backup.
I want to check that the back up was successfull and that my photos are on the external hard drive before I do a second backup on a different hardrive and then delete the pics from my camera. I am not sure how to check this. When I open the external harddrive I can't really understand where the iphoto files would be...
your advice and patience with a rookie would be much appreciated
Cheers
CC

Hi ChicaneChampagne
It would appear from your posts that you are failing to understand how backups and TM works...
For a better understanding see these links before going any further...
Time Machine Tutorial
How do I view or restore selected items?
Restore From Time Machine
http://support.apple.com/kb/VI29
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http://pondini.org/TM/Clones.html

How can I check my iPad backup has backed up my photographs

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I've had to buy a new laptop and now want to sync my iPad with it. I've followed some previous instructions on backing up with iTunes. The next step is to sync it which will wipe the iPad and to restore from backup. I'm very nervous about doing this - how do I know that the backup backed up my photographs - it didn't seem to take that long. Foolishly I don't have the photographs stored anywhere else and I don't want to lose them.
thanks

Apart from restoring the backup onto a device there is no other way of confirming what is in it - but it should contain photos taken with the iPad, copied to it via the camera connection kit, or saved from emails/websites etc. The backup won't contain photos that weren't originally synced from a computer.
If the photos are still on the iPad then you can copy them off : http://support.apple.com/kb/HT4083
You can also copy off photos that were originally synced from a computer, but you will need a third-party app such as Simple Transfer which can copy them off via your wifi network. But as photos are 'optimised' when they are synced to the iPad, any that you then copy back to a computer may not be exactly the same as they originally were on your computer.

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https://www.youtube.com/watch?v=efnXbn1nC4E

How can I debug a sequence that has a subsequence is running in a separate thread?

Hi,
How can I debug a sequence that has a subsequence is running in a separate thread?
I have to have a continues check for a digital in signal to be able to terminate the sequence if a physical button is pushed.
This is running in a separate thread, but this way I cannot debug the main sequence.
Is there any workaround for this?
Thanks,
Andras

This KB might help you:
http://digital.ni.com/public.nsf/websearch/46D1E157756C37E686256CED0075E156?OpenDocument
Let me know if this does not help.
Allen P.
NI

How do I change the color of font in a fillable form in Adobe Reader? How can I check if the writer of the document has given permission to edit color and not just add text?

How do I change the color of font in a fillable form in Adobe Reader? How can I check if the writer of the document has given permission to edit color and not just add text? Please help! I'm technologically challenged.

Most forms (99% or more) are created for simple text input, where you cannot change anything.
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I think my ex has access to my Icloud, how can I check what devices has access to my Icloud?

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How can I check how many times or when an app has been re-downloaded on my iphone

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Once you have set the region in DVD Player five times it cannot be changed. However see tis also:
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How can I check if a thread has stopped?

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