大约有 42,000 项符合查询结果（耗时：0.0462秒） [XML]
In java how to get substring from a string till a character c?
I have a string (which is basically a file name following a naming convention) abc.def.ghi
9 Answers
...
Calling Java varargs method with single null argument?
If I have a vararg Java method foo(Object ...arg) and I call foo(null, null) , I have both arg[0] and arg[1] as null s. But if I call foo(null) , arg itself is null. Why is this happening?
...
How to revert multiple git commits?
I have a git repository that looks like this:
13 Answers
13
...
Performance of Java matrix math libraries? [closed]
We are computing something whose runtime is bound by matrix operations. (Some details below if interested.) This experience prompted the following question:
...
Is there a performance difference between i++ and ++i in C?
Is there a performance difference between i++ and ++i if the resulting value is not used?
14 Answers
...
Good Linux (Ubuntu) SVN client [closed]
Subversion has a superb client on Windows (Tortoise, of course). Everything I've tried on Linux just - well - sucks in comparison....
...
NoSQL - MongoDB vs CouchDB [closed]
I am a complete noob when it comes to the NoSQL movement. I have heard lots about MongoDB and CouchDB. I know there are differences between the two. Which do you recommend learning as a first step into the NoSQL world?
...
In Markdown, what is the best way to link to a fragment of a page, i.e. #some_id?
I'm trying to figure out how to reference another area of a page with Markdown. I can get it working if I add a
5 Answers
...
What's is the difference between train, validation and test set, in neural networks?
I'm using this library to implement a learning agent.
7 Answers
7
...
What is the order of precedence for CSS?
I'm trying to figure out why one of my css classes seems to override the other (and not the other way around)
8 Answers
...