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What are the differences between .gitignore and .gitkeep?
...ack empty directories in Git have created the convention of putting files called .gitkeep in these directories. The file could be called anything; Git assigns no special significance to this name.
There is a competing convention of adding a .gitignore file to the empty directories to get them track...
Is the primary key automatically indexed in MySQL?
...key is always indexed. This is the same for MyISAM and InnoDB, and is generally true for all storage engines that at all supports indices.
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follo...
Check if a string has white space
... "/" characters are sufficient.
/^\s+$/ is checking whether the string is ALL whitespace:
^ matches the start of the string.
\s+ means at least 1, possibly more, spaces.
$ matches the end of the string.
Try replacing the regex with /\s/ (and no quotes)
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Git / Bower Errors: Exit Code # 128 & Failed connect
I am using Bower to install several libraries. For demonstration purposes here, I am installing bootstrap. Regardless of the package, I receive the following errors:
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javac error: Class names are only accepted if annotation processing is explicitly requested
...to the file name in this line:
javac -cp /home/manish.yadav/Desktop/JCuda-All-0.3.2-bin-linux-x86_64 EnumDevices
From the official faq:
Class names, 'HelloWorldApp', are only accepted if annotation processing is explicitly requested
If you receive this error, you forgot to include the .j...
How to list files in an android directory?
...gt; your app --> permissions --> enable storage. Should do this manually if you are facing this error. Make sure that you have <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> in your manifest. For the people who are facing NullPointerException - you are tryin...
What is meant by Resource Acquisition is Initialization (RAII)?
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It's a really terrible name for an incredibly powerful concept, and perhaps one of the number 1 things that C++ developers miss when they switch to other languages. There has been a bit of a movement to try to rename this concept as ...
Disable a Maven plugin defined in a parent POM
...unspecified (or at least undocumented) feature. There's no official phase called 'none'. So, you might as well put 'foo' there.
– Marcel Stör
Jan 9 '13 at 8:06
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Sound alarm when code finishes
...e my code takes extremely long to run and I don't want to be staring at it all the time but want to know when it is done.
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When should I use the new keyword in C++?
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Method 1 (using new)
Allocates memory for the object on the free store (This is frequently the same thing as the heap)
Requires you to explicitly delete your object later. (If you don't delete it, you could create a memory leak)
Memory stays al...