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How do I position one image on top of another in HTML?
... of another becomes easy - with minimal and semantic markup (no empty divs etc).
markup:
<div class="overlap"></div>
css:
.overlap
{
width: 100px;
height: 100px;
position: relative;
background-color: blue;
}
.overlap:after
{
content: '';
position: absolute;
...
What is object serialization?
... // machine, a database, an in memory array, etc.
new FileOutputStream(new File("o.ser")));
// do the magic
oos.writeObject( instance );
// close the writing.
oos.close();
}
}
When we run this progr...
FileSystemWatcher vs polling to watch for file changes
...ed, this usually means a FIFO or Queue as you want to deal requests in the order they arrive however in some processes like recursion in programs a FILO or Stack structure is whats used, In this case we are definitely referring to the event queue buffer and not the programs call stack buffer
...
Database Structure for Tree Data Structure
... its parents, finding the count of child nodes meeting certain conditions, etc. You need to know what information will be needed from the structure to determine the structure that will best fit your needs.
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SignalR - Sending a message to a specific user using (IUserIdProvider) *NEW 2.0.0*
...
This is how use SignarR in order to target a specific user (without using any provider):
private static ConcurrentDictionary<string, string> clients = new ConcurrentDictionary<string, string>();
public string Login(string username)
{
...
Should Gemfile.lock be included in .gitignore?
...doesn't have to recalculate all the gem dependencies each time you deploy, etc.
From cowboycoded's comment below:
If you are working on a gem, then DO NOT check in your Gemfile.lock. If you are working on a Rails app, then DO check in your Gemfile.lock.
Here's a nice article explaining what t...
How to provide animation when calling another activity in Android?
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How to create an infinite loop in Windows batch file?
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How many threads can a Java VM support?
...do other normal operations like browsing, opening, closing other programs, etc.
With 25,000 threads system slows down but it remains responsive.
With 50,000 threads system stopped responding instantly and I had to restart my system manually.
My system details are as follows :
Processor : Intel c...
Creating a copy of an object in C# [duplicate]
..." means exactly. How deep should it go, are there Id fields to be excepted etc.
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