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Why are hexadecimal numbers prefixed with 0x?

Why are hexadecimal numbers prefixed as 0x ? I understand the usage of the prefix but I don't understand the significance of why 0x was chosen. ...
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Retrieve a Fragment from a ViewPager

...ll no longer work. What about this solution, overriding instantiateItem() and destroyItem() of your Fragment(State)PagerAdapter: public class MyPagerAdapter extends FragmentStatePagerAdapter { SparseArray<Fragment> registeredFragments = new SparseArray<Fragment>(); public MyPa...
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How to create a directory if it doesn't exist using Node.js?

...rectory if it doesn't exist. It should have full permission for the script and readable by others. 17 Answers ...
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Is there a way to reduce the size of the git folder?

Seems like my project is getting bigger and bigger with every git commit/push . Is there a way to clean up my git folder? ...
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How to split a dos path into its components in Python

... bitten loads of times by people writing their own path fiddling functions and getting it wrong. Spaces, slashes, backslashes, colons -- the possibilities for confusion are not endless, but mistakes are easily made anyway. So I'm a stickler for the use of os.path, and recommend it on that basis. (H...
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Why is processing a sorted array faster than processing an unsorted array?

...e long distance or radio communication. You are the operator of a junction and you hear a train coming. You have no idea which way it is supposed to go. You stop the train to ask the driver which direction they want. And then you set the switch appropriately. Trains are heavy and have a lot of inert...
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The specified named connection is either not found in the configuration, not intended to be used wit

I have a one entity framework object and when I add it to my project, the connectionstring is added to app.config in the connectionstring section, but when I want to create new entitycontext and use this connectionstring , this error appears ...
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Meaning of $? (dollar question mark) in shell scripts

... This is the exit status of the last executed command. For example the command true always returns a status of 0 and false always returns a status of 1: true echo $? # echoes 0 false echo $? # echoes 1 From the manual: (acessible by calling man bash in your shell) $?...
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Is it possible to have different Git configuration for different projects?

...changing [user] email = ... block, will override the global ~/.gitconfig - and this is only for your user? – dcsan Nov 30 '19 at 18:40 add a comment  |  ...
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Extract filename and extension in Bash

I want to get the filename (without extension) and the extension separately. 37 Answers ...