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Detect if Android device has Internet connection

...User-Agent", "Test"); urlc.setRequestProperty("Connection", "close"); urlc.setConnectTimeout(1500); urlc.connect(); return (urlc.getResponseCode() == 200); } catch (IOException e) { Log.e(LOG_TAG, "Error checking internet connectio...
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Insert line after first match using sed

... Note the standard sed syntax (as in POSIX, so supported by all conforming sed implementations around (GNU, OS/X, BSD, Solaris...)): sed '/CLIENTSCRIPT=/a\ CLIENTSCRIPT2="hello"' file Or on one line: sed -e '/CLIENTSCRIPT=/a\' -e 'CLIENTSCRIPT2="hello"' file (-expressions (and t...
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When should I use nil and NULL in Objective-C?

... technically, they are exactly equal, you can send messages to both nil and to NULL. Idiomatically though nil is usually used to represent an object – cobbal Oct 14 '09 at 5:43 ...
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InputStream from a URL

... Calling this method in UI thread in Android will raise an exception. Do it in a background thread. Use Bolts-Android – Behrouz.M Mar 6 '19 at 10:16 ...
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Where does Chrome store extensions?

...s local paths, they are left in the place where there are selected from in all Operating Systems. Ex: If i load a unpacked Extension from E:\Chrome Extension the unpacked Extension is still in the same location Storage Location for Packed Extensions Navigate to chrome://version/ and look for Prof...
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open read and close a file in 1 line of code

... You don't really have to close it - Python will do it automatically either during garbage collection or at program exit. But as @delnan noted, it's better practice to explicitly close it for various reasons. So, what you can do to keep ...
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How to delete a file from SD card?

... I think Inner children are not deleted.. you have to delete all inner childs.See my answer below.. – AndroidGeek May 15 '14 at 7:56 2 ...
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How can I detect if the user is on localhost in PHP?

... Which would make this actually easier to break than spoofing the IP. You should really change it. – Pekka Jan 13 '10 at 0:09 3 ...
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Changing java platform on which netbeans runs

I am using Netbeans 6.7. I had first installed Java 1.5 before installing Netbeans. When i installed Netbeans it took Java 1.5 as the default version. Then i installed Java 1.6 on my machine. I need to change the default JDK of my netbeans to 1.6 not only to a specific project but to the whole Netbe...
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Where is PATH_MAX defined in Linux?

...ef'd article in part seems to confuse these two, at least in part). Note: POSIX <limits.h> says: A definition of one of the symbolic constants in the following list shall be omitted from the <limits.h> header […] where the corresponding value is equal to or greater than the stated mini...