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How to force garbage collection in Java?
...ES it is almost possible to forced you have to call to methods in the same order and at the same time this ones are:
System.gc ();
System.runFinalization ();
even if is just one object to clean the use of this two methods at the same time force the garbage collector to use the finalise() method o...
Unloading classes in java?
... don't have their interactions clearly and rigorously defined. I think in order to actually be able to unload a class youlre going go have to remove all references to any classes(and their instances) you're trying to unload.
Most people needing to do this type of thing end up using OSGi. OSGi is ...
Is there a way to access the “previous row” value in a SELECT statement?
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SQL has no built in notion of order, so you need to order by some column for this to be meaningful. Something like this:
select t1.value - t2.value from table t1, table t2
where t1.primaryKey = t2.primaryKey - 1
If you know how to order things but not...
How to increment a NSNumber
...etter. They're more concise, and don't require additional variables.
In order to increment an NSNumber, you're going to have to get its value, increment that, and store it in a new NSNumber.
For instance, for an NSNumber holding an integer:
NSNumber *number = [NSNumber numberWithInt:...];
int v...
Animated loading image in picasso
... attention to weak references and declare a Callback object in this way in order to avoid garbage collection (otherwise onSuccess could never get called): final Callback loadedCallback = new Callback() { @Override public void onSuccess() { // your code ...
How to install XNA game studio on Visual Studio 2012?
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Python logging: use milliseconds in time format
...nstantiating a Formatter I usually set formatter.converter = gmtime. So in order for @unutbu's answer to work in this case you'll need:
class MyFormatter(logging.Formatter):
def formatTime(self, record, datefmt=None):
ct = self.converter(record.created)
if datefmt:
s...
Face recognition Library [closed]
...ir SDK. Their site allows you to easily get a price quote and you can also order an evaluation kit that will help you evaluate their technology.
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Why is 1/1/1970 the “epoch time”?
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jQuery get mouse position within an element
...could click inside a div, then drag the mouse, then let up on the mouse in order to indicate how long they want something to be. (This is for a calendar control, so the user will be indicating the length, in time, of a certain event)
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