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How to choose an AES encryption mode (CBC ECB CTR OCB CFB)?
... secure system.
Let me illustrate my point: Imagine you are building a web application and you need to store some session data. You could assign each user a session ID and store the session data on the server in a hash map mapping session ID to session data. But then you have to deal with this pesky...
Difference between Bridge pattern and Adapter pattern
...t you don't get an insane number of classes. Let's say you have:
MemoryMappedFile and DirectReadFile types of file objects. Let's say you want to be able to read files from various sources (Maybe Linux vs. Windows implementations, etc.). Bridge helps you avoid winding up with:
MemoryMappedWi...
Use RSA private key to generate public key?
...IPTION: The genrsa command generates an RSA private key." openssl.org/docs/apps/genrsa.html
– Despertar
Sep 29 '12 at 23:46
127
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How to work around the lack of transactions in MongoDB?
...e can update the post collection and comments collection.
So what are our approaches that we can take in MongoDB to overcome a lack of transactions?
restructure - restructure the code, so that we're working within a single document and taking advantage of the atomic operations that we offer withi...
Browser statistics on JavaScript disabled [closed]
...ad to me, I do think JS should be used sparingly, unless its a single-page app.
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Why is exception.printStackTrace() considered bad practice?
...you do not have System.err being reassigned throughout the duration of the application's lifetime,
and if you do not require log rotation while the application is running,
and if accepted/designed logging practice of the application is to write to System.err (and the JVM's standard error output stre...
Android : Check whether the phone is dual SIM
...he phone is a DUAL SIM or not.
Try following activity :
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanc...
What scalability problems have you encountered using a NoSQL data store? [closed]
...
In business terms: first option was not feasible. Second option means our app works.
Technology details: running on MySQL for both SQL and NoSQL! Sticking with MySQL for good transaction support, performance, and proven track record for not corrupting data, scaling fairly well, support for cluste...
Log exception with traceback
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Note that for certain external apps, such as Azure insight, the trackback is not stored in the logs. It is then necessary to pass them explicitly to the message string as show below.
– Edgar H
Jul 16 at 7:55
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How to keep onItemSelected from firing off on a newly instantiated Spinner?
... find a suitable, straightforward place to do this as the layout seems to happen at some point after onResume() and onPostResume(), so all of the normal hooks have completed by the time the layout happens.
– Dan Dyer
Dec 18 '10 at 13:05
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