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Ruby on Rails Server options [closed]
The whole issue of setting up a development server for my Ruby on Rails application confuses me. There are WEBrick, Mongrel, Passenger, Apache, Nginx and many more I am sure, and I don't really understand the different roles they play.
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String, StringBuffer, and StringBuilder
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Mutability Difference:
String is immutable, if you try to alter their values, another object gets created, whereas StringBuffer and StringBuilder are mutable so they can change their values.
Thread-Safety Difference:
The difference between StringBuffer ...
Why are const parameters not allowed in C#?
...t actually did that, that would be great. Const doesn't do that. The const is a lie!
Const doesn't provide any guarantee that I can actually use. Suppose you have a method that takes a const thing. There are two code authors: the person writing the caller and the person writing the callee. The auth...
Please explain the exec() function and its family
What is the exec() function and its family? Why is this function used and how does its work?
7 Answers
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Fast permutation -> number -> permutation mapping algorithms
... first element ends up at, you have n possibilities, so you can describe this with a number between 0 and n-1. For the position that the next element ends up at, you have n-1 remaining possibilities, so you can describe this with a number between 0 and n-2.
Et cetera until you have n numbers.
As a...
What does a just-in-time (JIT) compiler do?
... better optimizations like inlining functions that are used frequently.
This is in contrast to a traditional compiler that compiles all the code to machine language before the program is first run.
To paraphrase, conventional compilers build the whole program as an EXE file BEFORE the first time y...
What is JNDI? What is its basic use? When is it used?
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What is JNDI ?
It stands for Java Naming and Directory Interface.
What is its basic use?
JNDI allows distributed applications to look up services in an abstract, resource-independent way.
When it is used?
The most c...
HTML minification? [closed]
Is there a online tool that we can input the HTML source of a page into and will minify the code?
8 Answers
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What is InnoDB and MyISAM in MySQL?
What is InnoDB and MyISAM in MySQL ?
8 Answers
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Why is String immutable in Java?
I was asked in an interview why String is immutable
12 Answers
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