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Redis is single-threaded, then how does it do concurrent I/O?
...pends on how you define concurrency.
In server-side software, concurrency and parallelism are often considered as different concepts. In a server, supporting concurrent I/Os means the server is able to serve several clients by executing several flows corresponding to those clients with only one com...
Is there a goto statement in Java?
...were to be added to a later version of Java.
If goto was not on the list, and it gets added to the language later on, existing code that used the word goto as an identifier (variable name, method name, etc...) would break. But because goto is a keyword, such code will not even compile in the presen...
Why are interface variables static and final by default?
Why are interface variables static and final by default in Java?
15 Answers
15
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Sending and Parsing JSON Objects in Android [closed]
I would like to send messages in the form of JSON objects to a server and parse the JSON response from the server.
11 Answe...
What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
...sole.log([0, 5, 0, 3, 0, 1, 0].filter_0());
//prints [5,3,1]
This is a standard way to extend objects and add new methods. Lots of libraries do this.
However, let's look at how for in works now:
var listeners = ["a", "b", "c"];
for (o in listeners) {
console.log(o);
}
//prints:
// 0
// 1
//...
How do I find the .NET version?
...
Just type any one of the below commands to give you the latest version in the first line.
1. CSC
2. GACUTIL /l ?
3. CLRVER
You can only run these from the Visual Studio Command prompt if you have Visual Studio installed, or else if you have the .NET framewo...
Stack, Static, and Heap in C++
...ese three concepts. When do I have to use dynamic allocation (in the heap) and what's its real advantage? What are the problems of static and stack? Could I write an entire application without allocating variables in the heap?
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Good example of livelock?
I understand what livelock is, but I was wondering if anyone had a good code-based example of it? And by code-based, I do not mean "two people trying to get past each other in a corridor". If I read that again, I'll lose my lunch.
...
MySQL Select Date Equal to Today
I'm trying to run a mysql select statement where it looks at today's date and only returns results that signed up on that current day. I've currently tried the following, but it doesn't seem to work.
...
How to get request URI without context path?
...ere a reason to use this instead of getServletPath()? I'm writing a filter and I noticed that getPathInfo() returns null, but getServletPath() returns the path minus the context (suitable for passing on to the request dispatcher).
– Jason C
Jun 25 '17 at 23:00
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