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Why is a boolean 1 byte and not 1 bit of size?
... I said earlier, I'm hard pressed to think of the last time I worked on an application where those conditions applied, but you give a couple of good examples, and I'm sure with a little imagination one could think of others.
– Jay
Jun 2 at 15:14
...
Java - Method name collision in interface implementation
...d ? I cannot even expect client code to be able to cast my instance to the appropriate interface , so am I not loosing something by this restriction ? Also note that in this way , when writing classes that actually implement the respective interfaces , we loose the benefit of having the code into a ...
Get a list of resources from classpath directory
...e", new ResourcesScanner()).getResources(pattern)
– zapp
Mar 16 '13 at 13:16
28
Does first soluti...
ReactJS - Does render get called any time “setState” is called?
... in component looks like the source of the waterfall of state of the whole APP.
So the change happens from where the setState called. The tree of renders then get called from there. If you've used pure component, the render will be skipped.
...
When are you supposed to use escape instead of encodeURI / encodeURIComponent?
...mpatibility. Generally, they should not be used unless interacting with an app/web service/etc designed for them.
– Anthony DiSanti
Jul 12 '11 at 19:03
3
...
Reliable method to get machine's MAC address in C#
... get a machine's MAC address regardless of the OS it is running using C#. Application will need to work on XP/Vista/Win7 32 and 64 bit as well as on those OSs but with a foreign language default. Many of the C# commands and OS queries don't work across OS. Any ideas? I have been scraping the out...
How are multi-dimensional arrays formatted in memory?
...ass one to a function taking an int ** parameter, bad things are going to happen. Here's a quick example:
int array1[3][2] = {{0, 1}, {2, 3}, {4, 5}};
In memory looks like this:
0 1 2 3 4 5
exactly the same as:
int array2[6] = { 0, 1, 2, 3, 4, 5 };
But if you try to pass array1 to this fun...
RESTful call in Java
...esource");
Builder request = resource.request();
request.accept(MediaType.APPLICATION_JSON);
Response response = request.get();
if (response.getStatusInfo().getFamily() == Family.SUCCESSFUL) {
System.out.println("Success! " + response.getStatus());
System.out.println(response.getEntity())...
How do I use an INSERT statement's OUTPUT clause to get the identity value?
...e this also from e.g. C#, when you need to get the ID back to your calling app - just execute the SQL query with .ExecuteScalar() (instead of .ExecuteNonQuery()) to read the resulting ID back.
Or if you need to capture the newly inserted ID inside T-SQL (e.g. for later further processing), you need...
How do you downgrade rubygems?
...sues occur, my recommendation is to go onto the production server that the application is currently running in and check out which rubygems version it is using:
gem -v
For me, it was using 1.8.24. So all I needed to do is downgrade my current rubygems which was generated from "rvm install 1.9.3",...