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Execute AsyncTask several times

In my Activity I use a class which extends from AsyncTask and a parameter which is an instance of that AsyncTask. When I call mInstanceOfAT.execute("") everything is fine. But the app crash when I press an update button which calls again the AsyncTask(In case the network job didnt work). Cause the...
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Segmentation fault on large array sizes

...ete[] the array. A better solution would be to use std::vector<int> and resize it to 1000000 elements. share | improve this answer | follow | ...
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Redis key naming conventions?

...directly querying for all keys which starts with user: there is a keys command for that. This command should be however used only for debugging purpose since it's O(N) because it's searching through all keys strored in database. More appropriate solution for this problem is to create dedicated key,...
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How to create border in UIButton?

I use custom button in my app named "addButton" and I want to border it with white color how can i get the white color border around my custom button? ...
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Restart/undo conflict resolution in a single file

...This restores the unresolved state, including all information about parent and merge base, which allows restarting the resolution. share | improve this answer | follow ...
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Converting string to title case

I have a string which contains words in a mixture of upper and lower case characters. 23 Answers ...
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What is the difference between hg forget and hg remove?

... 'hg forget' is just shorthand for 'hg remove -Af'. From the 'hg remove' help: ...and -Af can be used to remove files from the next revision without deleting them from the working directory. Bottom line: 'remove' deletes the file from your...
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How can I delete the current line in Emacs?

... If you want to delete a number of whole lines, you can prefix the command with a number: C-u 5 C-S-backspace # deletes 5 whole lines M-5 C-S-backspace # deletes 5 whole lines C-u C-S-backspace # delete 4 whole lines. C-u without a number defaults to 4 C-u -5 C-S-backspace # de...
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How do I check if a number is positive or negative in C#?

...f mathematics, computer science, also regular science which use a negative and positive zero. Chemists and physicists for example will sometimes use -0 for a number which was negative and rounded to zero. Definitions only have meaning within a context. When you treat the mathematical definitions you...
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Creating a zero-filled pandas data frame

What is the best way to create a zero-filled pandas data frame of a given size? 6 Answers ...