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How to run a background task in a servlet based web application?
I'm using Java and I want to keep a servlet continuously running in my application, but I'm not getting how to do it. My servlet has a method which gives counts of the user from a database on a daily basis as well as the total count of the users from the whole database. So I want to keep the servlet...
How do I make a simple makefile for gcc on Linux?
I have three files: program.c , program.h and headers.h .
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How to Copy Contents of One Canvas to Another Canvas Locally
I'd like to copy ALL contents of one canvas and transfer them to another all on the client-side. I would think that I would use the canvas.toDataURL() and context.drawImage() method to implement this but I am running into a few issues.
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Fade Effect on Link Hover?
on many sites, such as http://www.clearleft.com , you'll notice that when the links are hovered over, they will fade into a different color as opposed to immediately switching, the default action.
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finding the type of an element using jQuery
In jQuery, if I have a reference to an element, how can I determine what kind of element it is, for example, an input or an dropdown? Is there any way to find out?
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How to convert a string or integer to binary in Ruby?
How do you create integers 0..9 and math operators + - * / in to binary strings.
For example:
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Adding iOS UITableView HeaderView (not section header)
I want to add a table header (not section headers) like in the contacts app for example:
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What does value & 0xff do in Java?
I have the following Java code:
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