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How to automatically reload a page after a given period of inactivity
...mouse. This uses jQuery for event binding:
<script>
var time = new Date().getTime();
$(document.body).bind("mousemove keypress", function(e) {
time = new Date().getTime();
});
function refresh() {
if(new Date().getTime() - time >= 60000)
...
Constructors vs Factory Methods [closed]
...both are there to create instance of an object.
ElementarySchool school = new ElementarySchool();
ElementarySchool school = SchoolFactory.Construct(); // new ElementarySchool() inside
No difference so far. Now imagine that we have various school types and we want to switch from using ElementarySc...
Why can't I overload constructors in PHP?
...ate function __construct() {
...
}
public static function makeNewWithParameterA($paramA) {
$obj = new MyClass();
// other initialization
return $obj;
}
public static function makeNewWithParametersBandC($paramB, $paramC) {
$obj = new MyClass();
...
How to check if there exists a process with a given pid in Python?
Is there a way to check to see if a pid corresponds to a valid process? I'm getting a pid from a different source other than from os.getpid() and I need to check to see if a process with that pid doesn't exist on the machine.
...
“Insert if not exists” statement in SQLite
...
What is the optimal way to then get the ID of the newly inserted row or the already existing one, so I can insert it to another table that has a foreign key to this one? e.g. I have two tables person (id, name unique) and cat (person_id, name unique) and I want to insert lo...
Do I need to explicitly call the base virtual destructor?
... cout<<"D destructor"<<endl;
}
};
When you do:
B *pD = new D();
delete pD;
Then if you did not have a virtual destructor in B, only ~B() would be called. But since you have a virtual destructor, first ~D() will be called, then ~B().
...
How do I remove packages installed with Python's easy_install?
Python's easy_install makes installing new packages extremely convenient. However, as far as I can tell, it doesn't implement the other common features of a dependency manager - listing and removing installed packages.
...
How to get current working directory in Java?
...sspath so that you can use ClassLoader#getResource()
File classpathRoot = new File(classLoader.getResource("").getPath());
File[] csvFiles = classpathRoot.listFiles(new FilenameFilter() {
@Override public boolean accept(File dir, String name) {
return name.endsWith(".csv");
}
});
...
Reset auto increment counter in postgres
...ks perfectly But is there a way to reset the increment value to 0. So the new entries begin with a 0 index ?
– Charith Jayasanka
May 25 at 21:00
...
How to get the Android device's primary e-mail address
...er<Cursor> onCreateLoader(int id, Bundle arguments) {
return new CursorLoader(this,
// Retrieve data rows for the device user's 'profile' contact.
Uri.withAppendedPath(
ContactsContract.Profile.CONTENT_URI,
...