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What is an example of the simplest possible Socket.io example?
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Edit: I feel it's better for anyone to consult the excellent chat example on the Socket.IO getting started page. The API has been quite simplified since I provided this answer. That being said, here is the original answer updat...
What Every Programmer Should Know About Memory?
...that zoo. Probably there are outdated API references in some examples, but it doesn't matter; that won't affect the relevance of the fundamental concepts.
So, any book or article that describes something fundamental cannot be called outdated. "What every programmer should know about memory" is defi...
Private module methods in Ruby
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I think the best way (and mostly how existing libs are written) to do this is by creating a class within the module that deals with all the logic, and the module just provides a convenient method, e.g.
module GTranslate
class Translator
def perform( text ); translate( text )...
How to reload the current state?
...te and refresh all data / re-run the controllers for the current state and it's parent.
18 Answers
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Technically what is the main difference between Oracle JDK and OpenJDK? [duplicate]
I have been using OpenJDK for ages, initially for small projects where it has no problems. But since I started to play with it for big toys, I started to notice random/unknown fatal error and crashes (with H.264 codecs, etc.), and it was a nightmare till then to get ride of system crash+fatal errors...
HTML text input field with currency symbol
... field containing the "$" sign in the very beginning, and no matter what editing occurs to the field, for the sign to be persistent.
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What causes imported Maven project in Eclipse to use Java 1.5 instead of Java 1.6 by default and how
I imported a Maven project and it used Java 1.5 even though I have 1.6 configured as my Eclipse default Preferences->Java->Installed JREs .
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How do I retrieve my MySQL username and password?
I lost my MySQL username and password. How do I retrieve it?
10 Answers
10
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How to make pipes work with Runtime.exec()?
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Write a script, and execute the script instead of separate commands.
Pipe is a part of the shell, so you can also do something like this:
String[] cmd = {
"/bin/sh",
"-c",
"ls /etc | grep release"
};
Process p = Runtime.getR...
How can I read input from the console using the Scanner class in Java?
... java.util.Scanner works would be reading a single integer from System.in. It's really quite simple.
Scanner sc = new Scanner(System.in);
int i = sc.nextInt();
To retrieve a username I would probably use sc.nextLine().
System.out.println("Enter your username: ");
Scanner scanner = new Scanner(Sy...