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Check difference in seconds between two times

...all I am currently working on a project where when a certain event happens details about the event including the time that the event occurred is added into a list array. ...
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How do I parse JSON with Objective-C?

I am new to iPhone. Can anyone tell me the steps to follow to parse this data and get the activity details, first name, and last name? ...
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How do I find out if first character of a string is a number?

In Java is there a way to find out if first character of a string is a number? 5 Answers ...
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How to make a Python script run like a service or daemon in Linux

I have written a Python script that checks a certain e-mail address and passes new e-mails to an external program. How can I get this script to execute 24/7, such as turning it into daemon or service in Linux. Would I also need a loop that never ends in the program, or can it be done by just havin...
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remove all variables except functions

I have loaded in a R console different type of objects. I can remove them all using 5 Answers ...
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Updating packages in Emacs

...ve the following setup for packages (not sure if there is a better recommended one): 4 Answers ...
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Example invalid utf8 string?

I'm testing how some of my code handles bad data, and I need a few series of bytes that are invalid UTF-8. 5 Answers ...
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Creating hidden arguments with Python argparse

Is it possible to add an Argument to an python argparse.ArgumentParser without it showing up in the usage or help ( script.py --help )? ...
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Send POST Request with Data Specified in File via Curl

I need to make a POST request via Curl from the command line. Data for this request is located in a file. I know that via PUT this could be done with the --upload-file option. ...
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Unable to modify ArrayAdapter in ListView: UnsupportedOperationException

I'm trying to make a list containing names. This list should be modifiable (add, delete, sort, etc). However, whenever I tried to change the items in the ArrayAdapter, the program crashed, with java.lang.UnsupportedOperationException error. Here is my code: ...