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How to use performSelector:withObject:afterDelay: with primitive types in Cocoa?

...st make sure your pointers are still valid after the delay (ie. no objects allocated on stack). share | improve this answer | follow | ...
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What's the difference between isset() and array_key_exists()? [duplicate]

...t will return false when the array value is set to null. See isset on the PHP documentation site. share | improve this answer | follow | ...
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What are WSDL, SOAP and REST?

...sses defined in xml... "You use SOAP just the same way that you would any PHP class. However, in this case the class does not exist in the local applications file system, but at a remote site accessed over http." ... "If we think of using a SOAP service as just another PHP class then the WSDL docum...
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Finish an activity from another activity

... It shows this error "Syntax error on tokens, AnnotationName expected instead" on "registerReceiver(broadcast_reciever, new IntentFilter("finish_activity"));". What's wrong? – Behzad Nov 13 '12 at 8:29 ...
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FileNotFoundException while getting the InputStream object from HttpURLConnection

...tainer of the service happens to be me! .. Well I tried doing a curl using php and it returns 200 (have edited my question) Also tried getErrorStream() as suggested. It throws a NullPointerException on new InputStreamReader(con.getErrorStream()). – naiquevin Ma...
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Remove URL parameters without refreshing page

...m/old-page-name => can become => www.example.com/myNewPaage20180322.php Background We can use: 1- The pushState() method if you want to add a new modified URL to history entries. 2- The replaceState() method if you want to update/replace current history entry. .replaceState() operate...
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Convert InputStream to byte array in Java

...'s answer shows how you can avoid using an intermediate buffer, but rather allocate an array of the correct size. Unless you're dealing with large files I personally prefer the code above, which is more elegant and can be used for InputStreams where the number of bytes to read is not known in advan...
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How to draw a custom UIView that is just a circle - iPhone app

... could use QuartzCore and do something this -- self.circleView = [[UIView alloc] initWithFrame:CGRectMake(10,20,100,100)]; self.circleView.alpha = 0.5; self.circleView.layer.cornerRadius = 50; // half the width/height self.circleView.backgroundColor = [UIColor blueColor]; ...
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Python (and Python C API): __new__ versus __init__

...One example is when you unpickle objects from a pickle file, they will get allocated (__new__) but not initialised (__init__). share | improve this answer | follow ...
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Should MySQL have its timezone set to UTC?

...negative values from FROM_UNIXTIME Sources: https://bugs.mysql.com/bug.php?id=68861 http://dev.mysql.com/doc/refman/5.0/en/date-and-time-functions.html http://dev.mysql.com/doc/refman/5.1/en/datetime.html http://en.wikipedia.org/wiki/Coordinated_Universal_Time http://shafiqissani.wordpress.com/2...