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How do I provide JVM arguments to VisualVM?
I'm using VisualVM from JDK 1.6.0_26 to profile a Java webapp running under Tomcat, but VisualVM often tells me that it doesn't have enough memory to take a snapshot, and to use the -m>X m>mm>x m> switch to provide more memory to Netbeans. The problem is, I'm running VisualVM outside of Netbeans, so how can I...
How do you clear a stringstream variable?
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For all the standard library types the member function empty() is a query, not a command, i.e. it means "are you empty?" not "please throw away your contents".
The clear() member function is inherited from ios and is used to clear the error state of the stream, e...
Array.sort() doesn't sort numbers correctly [duplicate]
In Chrome 14, and Firefom>x m> 5 (haven't tested other browsers), the following code doesn't sort the numbers correctly:
5 Answe...
How to sum all the values in a dictionary?
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As you'd em>x m>pect:
sum(d.values())
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Most efficient way to check for DBNull and then assign to a variable?
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I must be missing something. Isn't checking for DBNull em>x m>actly what the DataRow.IsNull method does?
I've been using the following two em>x m>tension methods:
public static T? GetValue<T>(this DataRow row, string columnName) where T : struct
{
if (row.IsNull(columnName))
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Is there any difference between “!=” and “” in Oracle Sql?
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!= is easier to store in an m>X m>ML file!
– Mark McLaren
Jul 19 '17 at 7:02
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Jinja2 template variable if None Object set a default value
...do:
{{ p|default('', true) }}
Cause None casts to False in boolean contem>x m>t.
Update: As lindes mentioned, it works only for simple data types.
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Difference between core and processor
...y the basic computation unit of the CPU - it can run a single program contem>x m>t (or multiple ones if it supports hardware threads such as hyperthreading on Intel CPUs), maintaining the correct program state, registers, and correct em>x m>ecution order, and performing the operations through ALUs. For optimi...
Is AsyncTask really conceptually flawed or am I just missing something?
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How about something like this:
class MyActivity em>x m>tends Activity {
Worker mWorker;
static class Worker em>x m>tends AsyncTask<URL, Integer, Long> {
MyActivity mActivity;
Worker(MyActivity activity) {
mActivity = activity;
}
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How to install trusted CA certificate on Android device?
...it's possible and easy. I was able to install the Charles Web Debbuging Prom>x m>y cert on my un-rooted device and successfully sniff SSL traffic.
Em>x m>tract from http://wiki.cacert.org/FAQ/ImportRootCert
Before Android version 4.0, with Android version Gingerbread & Froyo, there was a single read-...