大约有 46,000 项符合查询结果(耗时:0.0534秒) [XML]
What is an Intent in Android?
... to happen. Depending on the intent, apps or the OS might be listening for it and will react accordingly. Think of it as a blast email to a bunch of friends, in which you tell your friend John to do something, or to friends who can do X ("intent filters"), to do X. The other folks will ignore the em...
What are the respective advantages/limitations of Amazon RDS vs. EC2 with MySQL? [closed]
...
This is a simple question with a very complicated answer!
In short: EC2 will provide maximum performance if you go with a RAID0 EBS. Doing RAID0 EBS requires a pretty significant amount of maintenance overhead, for example:
http://alestic.com/2009/06...
private final static attribute vs private final attribute
...
In general, static means "associated with the type itself, rather than an instance of the type."
That means you can reference a static variable without having ever created an instances of the type, and any code referring to the variable is referring to the exact...
is there a css hack for safari only NOT chrome?
...g to find a css hack for just safari NOT chrome, i know these are both webkit browsers but im having problems with div alignments in chrome and safari, each displays differently.
...
Exception thrown in NSOrderedSet generated accessors
...
I reproduced your setup both with your data model and one of my own with different names. I got the same error in both cases.
Looks like a bug in Apple's autogenerated code.
sh...
How do I test for an empty JavaScript object?
...
// because Object.keys(new Date()).length === 0;
// we have to do some additional check
Object.keys(obj).length === 0 && obj.constructor === Object
Note, though, that this creates an unnecessary array (the return value of keys).
Pre-ECMA 5:
function isEmpty(obj) {
for(var prop in obj)...
What is a singleton in C#?
What is a Singleton and when should I use it?
16 Answers
16
...
Selecting the last value of a column
I have a spreadsheet with some values in column G. Some cells are empty in between, and I need to get the last value from that column into another cell.
...
Does Spring @Transactional attribute work on a private method?
...
The Question is not private or public, the question is: How is it invoked and which AOP implementation you use!
If you use (default) Spring Proxy AOP, then all AOP functionality provided by Spring (like @Transactional) will only be taken into account if the call goes through the proxy. -...
What is the meaning of the term arena in relation to memory?
...hapters, the author makes heavy use of the word arena , but never defines it. I've searched for the meaning of the word and how it relates to memory, and found nothing. Here are a few contexts in which the author uses the term:
...
