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ContextLoaderListener or not?
...ke scheduled tasks, JMS connections, etc. If you forget to add <load-on-startup> to your web.xml, then these tasks won't be started until the first access of the servlet.
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Linq to SQL how to do “where [column] in (list of values)”
...ew Guid[] { ... };
// and a DataContext
var dc = new MyDataContext();
// start the queryable
var query = (
from thing in dc.Things
where thing.Id == ids[ 0 ]
select thing
);
// then, for each other id
for( var i = 1; i < ids.Count(); i++ ) {
// select that thing and concat to ...
How to use ADB to send touch events to device using sendevent command?
...ice.touch(200, 400, MonkeyDevice.DOWN_AND_UP)
You can also do a drag, start activies etc.
Have a look at the api for MonkeyDevice.
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How do you 'redo' changes after 'undo' with Emacs?
...red more efficiently,
allowing more changes to accumulate
before Emacs starts discarding
history.
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instanceof Vs getClass( )
...t with getClass() you will need to ensure you have a non-null reference to start with, or you'll get a NullPointerException, whereas instanceof will just return false if the first operand is null.
Personally I'd say instanceof is more idiomatic - but using either of them extensively is a design sme...
Shell script to delete directories older than n days
...nding files / directories / links etc.
/path/to/base/dir: the directory to start your search in.
-type d: only find directories
-ctime +10: only consider the ones with modification time older than 10 days
-exec ... \;: for each such result found, do the following command in ...
rm -rf {}: recursivel...
When should I choose Vector in Scala?
... @Duncan where have you heard that Vector's iteration is faster? For a start, you need to keep track of and update the current index, which you don't need to with a linked list. I wouldn't call the list functions "specialised cases" - they are the bread and butter of functional programming. Not ...
JavaScript string encryption and decryption?
...F2 and ciphers. In this case ciphers is what you need. Check out the quick-start quide on the project's homepage.
You could do something like with the AES:
<script src="http://crypto-js.googlecode.com/svn/tags/3.1.2/build/rollups/aes.js"></script>
<script>
var encryptedA...
What is move semantics?
...
I find it easiest to understand move semantics with example code. Let's start with a very simple string class which only holds a pointer to a heap-allocated block of memory:
#include <cstring>
#include <algorithm>
class string
{
char* data;
public:
string(const char* p)
...
java SSL and cert keystore
...e, the default password is "changeit": community.oracle.com/thread/1540678?start=0&tstart=0
– cwc
May 27 '14 at 2:58
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