大约有 34,900 项符合查询结果（耗时：0.0547秒） [XML]
Are static variables shared between threads?
...ility. If they are accessible any thread can get at them, so you're more likely to see concurrency problems because they're more exposed.
There is a visibility issue imposed by the JVM's memory model. Here's an article talking about the memory model and how writes become visible to threads. You can'...
Good scalaz introduction [closed]
Recently scalaz caught my eye. It looks very interesting, but I have not found any good introduction to the library. Seems that scalaz incorporates a lot of ideas from haskell and mathematics. Most articles that I found assume that you already feel comfortable with these concepts.
...
Why do I get the error “Unsafe code may only appear if compiling with /unsafe”?
...
To use unsafe code blocks, the project has to be compiled with the /unsafe switch on.
Open the properties for the project, go to the Build tab and check the Allow unsafe code checkbox.
...
Given an emacs command name, how would you find key-bindings ? (and vice versa)
If I know an emacs command name, says, "goto-line"; what if I want to query whether if there are any key-sequences bound to this command ?
...
How does the getView() method work when creating your own custom adapter?
...
1: The LayoutInflater takes your layout XML-files and creates different View-objects from its contents.
2: The adapters are built to reuse Views, when a View is scrolled so that is no longer visible, it can be used for one of the new Views appear...
JUnit vs TestNG [closed]
At work we are currently still using JUnit 3 to run our tests. We have been considering switching over to JUnit 4 for new tests being written but I have been keeping an eye on TestNG for a while now. What experiences have you all had with either JUnit 4 or TestNG, and which seems to work better fo...
Difference between declaring variables before or in loop?
...w-away variable before a loop, as opposed to repeatedly inside the loop, makes any (performance) difference?
A (quite pointless) example in Java:
...
cd into directory without having permission
...
JonathanJonathan
15.3k1010 gold badges5050 silver badges5252 bronze badges
add a c...
Comprehensive beginner's virtualenv tutorial? [closed]
...answered Apr 30 '11 at 22:07
Mark PopeMark Pope
10.5k1010 gold badges4343 silver badges5757 bronze badges
...
iOS start Background Thread
...
If you use performSelectorInBackground:withObject: to spawn a new thread, then the performed selector is responsible for setting up the new thread's autorelease pool, run loop and other configuration details – see "Using NSObject to Spawn a Thread" in Ap...