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'float' vs. 'double' precision
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Floating point numbers in C use IEEE 754 encoding.
This type of encoding uses a sign, a significand, and an exponent.
Because of this encoding, many numbers will have small changes to allow them to be stored.
Also, the number of significa...
How can I count the number of matches for a regex?
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matcher.find() does not find all matches, only the next match.
Solution for Java 9+
long matches = matcher.results().count();
Solution for Java 8 and older
You'll have to do the following. (Starting from Java 9, there is a nicer solution)
int count = 0;
while (matcher.find())
count...
What is non-blocking or asynchronous I/O in Node.js?
...t of Server Side Javascript engines, what is non-blocking I/O or asynchronous I/O? I see this being mentioned as an advantage over Java server side implementations.
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How to vertically align into the center of the content of a div with defined width/height?
What would be the correct method to vertically center any content in a defined width/height div .
4 Answers
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Case-INsensitive Dictionary with string key-type in C#
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This seemed related, but I didn't understand it properly: c# Dictionary: making the Key case-insensitive through declarations
It is indeed related. The solution is to tell the dictionary instance not to use the standard string compare method (wh...
What is the advantage of using async with MVC5?
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The async actions are useful only when you are performing I/O bound operations such as remote server calls. The benefit of the async call is that during the I/O operation, no ASP.NET worker thread is being used. So here's how the first example wor...
Use a LIKE statement on SQL Server XML Datatype
If you have a varchar field you can easily do SELECT * FROM TABLE WHERE ColumnA LIKE '%Test%' to see if that column contains a certain string.
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Difference between using Throwable and Exception in a try catch
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By catching Throwable it includes things that subclass Error. You should generally not do that, except perhaps at the very highest "catch all" level of a thread where you want to log or otherwise handle absolutely everything that can go wrong. It would b...
How to escape a JSON string to have it in a URL?
Using Javascript, I want to generate a link to a page. The parameters to the page are in a Javascript array that I serialize in JSON.
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Disable XML validation in Eclipse
... save a file and it takes a while to validate them.
The project is created using gwt-maven-plugin.
5 Answers
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