大约有 43,000 项符合查询结果(耗时:0.0570秒) [XML]
Spring AOP vs AspectJ
I am under the impression that Spring AOP is best used for application specific tasks such as security, logging, transactions, etc. as it uses custom Java5 annotations as a framework. However, AspectJ seems to be more friendly design-patterns wise.
...
Difference between PCDATA and CDATA in DTD
What is the difference between #PCDATA and #CDATA in DTD ?
6 Answers
6
...
What is the difference between an int and an Integer in Java and C#?
I was reading More Joel on Software when I came across Joel Spolsky saying something about a particular type of programmer knowing the difference between an int and an Integer in Java/C# (Object-Oriented Programming Languages).
...
How to check a string for specific characters?
How can I check if a string has several specific characters in it using Python 2?
5 Answers
...
PHP global in functions
...
Globals are evil
This is true for the global keyword as well as everything else that reaches from a local scope to the global scope (statics, singletons, registries, constants). You do not want to use them. A function call should not have to rely on anything outside, e.g.
function fn()
{
gl...
Naming convention - underscore in C++ and C# variables
It's common to see a _var variable name in a class field. What does the underscore mean? Is there a reference for all these special naming conventions?
...
Why does C++ not have reflection?
...e language design decision and to identify the possibilities of reflection in C++.
14 Answers
...
Why is String immutable in Java?
I was asked in an interview why String is immutable
12 Answers
12
...
what is faster: in_array or isset? [closed]
...
The answers so far are spot-on. Using isset in this case is faster because
It uses an O(1) hash search on the key whereas in_array must check every value until it finds a match.
Being an opcode, it has less overhead than calling the in_array built-in functi...
What is the advantage to using bloom filters?
I am reading up on bloom filters and they just seem silly. Anything you can accomplish with a bloom filter, you could accomplish in less space, more efficiently, using a single hash function rather than multiple, or that's what it seems. Why would you use a bloom filter and how is it useful?
...
