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Data access object (DAO) in Java
...at interface to deal with SQL server, and another to deal with flat files, etc.
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Excel “External table is not in the expected format.”
... installing multiple office versions and various office sdk's, assemblies, etc. had led to the ACEOleDB.dll reference in the registry pointing to the OFFICE12 folder instead of OFFICE14 in
C:\Program Files\Common Files\Microsoft Shared\OFFICE14\ACEOLEDB.DLL
From the link:
Alternatively, you can m...
How to check for a valid Base64 encoded string
... // Base64 string's length is always divisible by four, i.e. 8, 16, 20 etc.
// If it is not you can return false. Quite effective
// Further, if it meets the above criterias, then test for spaces.
// If it contains spaces, it is not base64
if (value == null || va...
Is there still any reason to learn AWK?
...nment that can be found on virtually every *nix is sh. So while grep, sed, etc can surely replace awk on a modern mainstream linux distro, when you move to more exotic systems, knowing a little awk is going to be Real Handy.
awk can also be used for more than just text processing. For example one o...
What is the difference between declarative and procedural programming paradigms?
...), rather than writing out "draw string, measure string, advance position, etc." Another example is Prolog, where a "program" is a declarative set of facts and relations/deductions, and a query. The Prolog engine figures out how to evaluate the query: you don't need to tell it how to do so. Final...
How do I programmatically determine operating system in Java?
...ix() // and so on
}
That way, every time you ask for the Os, you do not fetch the property more than once in the lifetime of your application.
February 2016: 7+ years later:
There is a bug with Windows 10 (which did not exist at the time of the original answer).
See "Java's “os.name” for W...
How to order events bound with jQuery
...quite good as you can use event.stopPropagation(), event.preventDefault(), etc to skip handlers and cancel or un-cancel the action.
$( '#mybutton' ).click( function(e) {
// Do stuff first
} );
$( '#mybutton' ).click( function(e) {
// Do other stuff first
} );
$( document ).delegate( '#m...
How to check if activity is in foreground or in visible background?
..., but if
your activity is already extended from MapActivity/ListActivity etc.
you still need to write the following by hand):
@Override
protected void onResume() {
super.onResume();
MyApplication.activityResumed();
}
@Override
protected void onPause() {
super.onPause();
MyApplication....
Include all files in a folder in a single bundle
...folder including all the files of the childfolders (and their childfolders etc.)?
1 Answer
...
HTML text input allow only numeric input
...is still allows to enter characters like /, multiple dots, other operators etc.
– Mahendra Liya
Mar 12 '13 at 19:36
6
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