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When do you use Java's @Override annotation and why?
What are the best practices for using Java's @Override annotation and why?
27 Answers
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facebook: permanent Page Access Token?
...ret}&fb_exchange_token={short_lived_token}
entering in your app's ID and secret and the short-lived token generated in the previous step.
You cannot use the Graph API Explorer. For some reason it gets stuck on this request. I think it's because the response isn't JSON, but a query string. Sin...
What is the optimal length for an email address in a database?
...acted portion of my query, reflecting the EMAIL_ADDRESS column data type and property:
8 Answers
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Check if table exists in SQL Server
...always best to use an INFORMATION_SCHEMA view. These views are (mostly) standard across many different databases and rarely change from version to version.
To check if a table exists use:
IF (EXISTS (SELECT *
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA = ...
filename and line number of python script
How can I get the file name and line number in python script.
9 Answers
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How do I return multiple values from a function in C?
If I have a function that produces a result int and a result string , how do I return them both from a function?
8 Answe...
How to set up fixed width for ?
...d>
</tr>
** If you have <th> elements set the width there and not on the <td> elements.
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Android App Not Install. An existing package by the same name with a conflicting signature is alread
...sed to sign the APKs, by default if you are running directly from your IDE and opening your Emulator, the APK installed in the Emulator is signed with your debug-key(usually installed in ~/.android/debug.keystore), so if the previous APK was signed with a different key other than the one you are cur...
Create aar file in Android Studio
I'd like to create an aar file for my library in Android Studio, i would've gone with a jar option but my library has resources.
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System.currentTimeMillis vs System.nanoTime
... movement is directly proportional to the elapsed time since the last call and I want to be as precise as possible.
10 Answ...