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What is Common Gateway Interface (CGI)?
...g, and CGI became almost synonymous with Perl for a while. Then there came Java Servlets, PHP and a bunch of others and took over large parts of Perl's market share.
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When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?
...m Derived to Base or viceversa creates new copy! For people coming from C#/Java, this can be a huge surprise because the result is basically a chopped off object created from Derived.
dynamic_cast
dynamic_cast uses runtime type information to figure out if cast is valid. For example, (Base*) to ...
Constant Amortized Time
...t grows in size as more elements are added to it
such as an ArrayList in Java. If we started out with a dynamic array
of size 4, it would take constant time to push four elements onto it.
Yet pushing a fifth element onto that array would take longer as the
array would have to create a new ar...
How do exceptions work (behind the scenes) in c++
... hardware is doing, it's a matter of degree. Many that are using C++ (over Java or a scripted language) are often doing so for performance. For them, the abstraction layer should be relatively transparent, so that you have some idea of what's going on in the metal.
– speedplane...
What is the purpose of backbone.js?
....js is basically an uber-light framework that allows you to structure your Javascript code in an MVC (Model, View, Controller) fashion where...
Model is part of your code that retrieves and populates the data,
View is the HTML representation of this model (views change as models change, etc.)
...
Switch statement fallthrough in C#?
...gh, for which I'm grateful. This is a not uncommon source of bugs in C and Java.
The workaround is to use goto, e.g.
switch (number.ToString().Length)
{
case 3:
ans += string.Format("{0} hundred and ", numbers[number / 100]);
goto case 2;
case 2:
// Etc
}
The general ...
Do you need to dispose of objects and set them to null?
...the object.
C# Object references
Jon Skeet compared object references in Java to pieces of string that are attached to the balloon, which is the object. Same analogy applies to C# object references. They simply point to a location of the heap that contains the object. Thus, setting it to null has ...
Same Navigation Drawer in different Activities
... />
</android.support.v4.widget.DrawerLayout>
AppBaseActivity.java
/*
* This is a simple and easy approach to reuse the same
* navigation drawer on your other activities. Just create
* a base layout that conains a DrawerLayout, the
* navigation drawer and a FrameLayout to hold your
*...
ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术
...) 大数据 & AI 其他 IT专题 还在用Java开发安卓App？你out啦！ 轻松创APP 首页 > IT技术 > 开源 & Github > 正文 ZMQ: 基本原理 来源：开源中国 2016-01-18 16:10:01 人气：...
Patterns for handling batch operations in REST web services?
...server in
batches at our leisure. A simple
update queue implemented in JavaScript
is shown in listing 5.13. [...]
The queue maintains two arrays. queued
is a numerically indexed array, to
which new updates are appended. sent
is an associative array, containing
those updates that h...