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When should we use mutex and when should we use semaphore
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edited Feb 2 '17 at 6:27
answered Oct 28 '10 at 5:02
pa...
Query EC2 tags from within instance
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Is the ec2-describe-tags command easily available? Supposedly it's in the ec2-api-tools package, but I got nothing but 404's when I tried to install it.
– Edward Falk
Apr 8 '12 at 19:39
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InputStream from a URL
...ur original code uses FileInputStream, which is for accessing file system hosted files.
The constructor you used will attempt to locate a file named a.txt in the www.somewebsite.com subfolder of the current working directory (the value of system property user.dir). The name you provide is resolved ...
close vs shutdown socket?
In C, I understood that if we close a socket, it means the socket will be destroyed and can be re-used later.
9 Answers
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Android - Start service on boot
... I have everything set up correctly to start an IntentService when Android OS boots. Unfortunately it is not starting on boot, and I'm not getting any errors. Maybe the experts can help...
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Determining the current foreground application from a background task or service
...roundTaskAppName = foregroundAppPackageInfo.applicationInfo.loadLabel(pm).toString();
This requires an additional permission in activity menifest and works perfectly.
<uses-permission android:name="android.permission.GET_TASKS" />
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Is mongodb running?
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answered Apr 2 '11 at 4:27
TiloTilo
31.1k44 gold badges6969 silver badges9999 bronze badges
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Get UIScrollView to scroll to the top
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Massimo Polimeni
4,27633 gold badges2020 silver badges4949 bronze badges
answered Feb 12 '18 at 10:55
Rajasekhar Pasupul...
How do I load a file into the python console?
... = [9, 42, 888]
b = len(a)
^Z
1 file(s) copied.
C:\junk>\python27\python
Python 2.7.1 (r271:86832, Nov 27 2010, 18:30:46) [MSC v.1500 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> execfile('execfile_example.py')
>>> ...
What's up with Java's “%n” in printf?
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answered Dec 10 '09 at 19:27
Bill KBill K
58.8k1414 gold badges9595 silver badges143143 bronze badges
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