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Checking for a null int value from a Java ResultSet
... declaration. In which case your test is completely redundant.
If you actually want to do something different if the field value is NULL, I suggest:
int iVal = 0;
ResultSet rs = magicallyAppearingStmt.executeQuery(query);
if (rs.next()) {
iVal = rs.getInt("ID_PARENT");
if (rs.wasNull()) {
...
vertical align middle in
... want to keep the height of #abc div at 50px and text to align vertically in the middle of the div .
10 Answers
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Using LINQ to concatenate strings
...pport aggregates as extension methods. Using the dot-notation, one simply calls a method on an IEnumerable object.
Remember that aggregate queries are executed immediately.
More information - MSDN: Aggregate Queries
If you really want to use Aggregate use variant using StringBuilder proposed in...
How can you automatically remove trailing whitespace in vim
...We use as much vi as vim (I use vim; they don't because they'd have to install it). I have a program I call stb to Strip Trailing Blanks and I use that as a filter; works in vi too. This is better.
– Jonathan Leffler
Jan 15 '09 at 14:06
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How to tell if UIViewController's view is visible
... be better to check first to see if it is already loaded. I've added the call to isViewLoaded to avoid this problem.
if (viewController.isViewLoaded && viewController.view.window) {
// viewController is visible
}
Since iOS9 it has became easier:
if viewController.viewIfLoaded?.windo...
How to output git log with the first line only?
I am trying to customize the format for git log . I want all commits to be shown in one line. Each line should only show the first line of the commit message.
I found out that git log --pretty=short should do the trick but on my computer it shows the full log as git log does (besides the ti...
How to change bower's default components folder?
...ect that uses bower from twitter. I created a component.json to maintain all my dependency like jquery. Then I run bower install that installs everything in a folder named components . But I need to install the components in a different folder, e.g. public/components .
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Iteration ng-repeat only X times in AngularJs
... This is an incredibly useful piece of code, but this does not actually satisfy the OP's question. He is simply looking for a way to repeat n times, and likely doesn't have an actual object to iterate over.
– SamHuckaby
Oct 16 '14 at 16:05
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How to use HTML to print header and footer on every printed page of a document?
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This did not work for me, I'm using Chrome 15.0. All it does is print the element where it would be on the screen, e.g. in the middle of the page, if that's where I scrolled to. It certainly doesn't print on every page.
– chharvey
Dec ...
Compiling with g++ using multiple cores
Quick question: what is the compiler flag to allow g++ to spawn multiple instances of itself in order to compile large projects quicker (for example 4 source files at a time for a multi-core CPU)?
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