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Why do we use __init__ in Python classes?
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By what you wrote, you are missing a critical piece of understanding: the difference between a class and an object. __init__ doesn't initialize a class, it initializes an instance of a class or an object. Each dog has colour,...
Code signing certificate for open-source projects?
...rtificate.) I want to do this so anyone can check that this build was made by me, not by someone else. I also want to create a secure website with a valid SSL certificate so visitors can create their own accounts in a secure way so they can contribute to this project.
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How do I turn on SQL debug logging for ActiveRecord in RSpec tests?
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By default, all your db queries will be logged already in test mode. They'll be in log/test.log.
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How to hide action bar before activity is created, and then show it again?
...tionBar but then, as you say, getActionBar(); returns null.
This is solved by:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
getActionBar().hide();
setContentView(R.layout.splash); // be ...
REST HTTP status codes for failed validation or invalid duplicate
...(Bad Request) rather narrowly as
The request could not be understood by the server due to malformed syntax
So it might have been argued that it was inappropriate for semantic errors. But not any more; since June 2014 the relevant standard RFC 7231, which supersedes the previous RFC2616, give...
What is the recommended batch size for SqlBulkCopy?
...6M qualified rows, averaging 5 columns of decimal and short text, about 30 bytes per row.
Given this scenario, I found a batch size of 5,000 to be the best compromise of speed and memory consumption. I started with 500 and experimented with larger. I found 5000 to be 2.5x faster, on average, than ...
Best practices for storing postal addresses in a database (RDBMS)?
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For more international use, one schema to consider is the one used by Drupal Address Field. It's based on the xNAL standard, and seems to cover most international cases. A bit of digging into that module will reveal some nice pearls for interpreting and validating addresses internationally. ...
How to ignore xargs commands if stdin input is empty?
...ace, so this sort of thing will happen frequently. You can work around it by using homebrew to install the GNU fileutils.
– edk750
Jul 20 '16 at 19:41
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How to prevent multiple instances of an Activity when it is launched with different Intents
...sn't just a problem within the Android Market, but also sideloading an app by uploading it to a server, or emailing it to your phone, causes this problem. All these things install the app using the Package Installer, where I believe the bug resides. Furthermore, just in case it's not clear, you on...
Static link of shared library function in gcc
...instead of shared (.so) ones. But static libraries aren't always installed by default, so you may have to install the static library yourself.
Another possible approach is to use statifier or Ermine. Both tools take as input a dynamically linked executable and as output create a self-contained execu...