大约有 43,741 项符合查询结果(耗时:0.0386秒) [XML]

https://stackoverflow.com/ques... 

What Java ORM do you prefer, and why? [closed]

It's a pretty open ended question. I'll be starting out a new project and am looking at different ORMs to integrate with database access. ...
https://stackoverflow.com/ques... 

How to get a key in a JavaScript object by its value?

I have a quite simple JavaScript object, which I use as an associative array. Is there a simple function allowing me to get the key for a value, or do I have to iterate the object and find it out manually? ...
https://stackoverflow.com/ques... 

Why is (object)0 == (object)0 different from ((object)0).Equals((object)0)?

...y different methods. The == case will bind to the static reference equality operator. There are 2 independent boxed int values created hence they are not the same reference. In the second case you bind to the instance method Object.Equals. This is a virtual method which will filter down to Int...
https://stackoverflow.com/ques... 

Why is String immutable in Java?

... String is immutable for several reasons, here is a summary: Security: parameters are typically represented as String in network connections, database connection urls, usernames/passwords etc. If it were mutable, these parameters could be easily changed. Synchronization and concurrency: ma...
https://stackoverflow.com/ques... 

MySQL high CPU usage [closed]

...ondly I'd say you want to double check your MySQL users, just to make sure it's not possible for anyone to be connecting from a remote server. This is also a major security thing to check. Thirdly I'd say you want to turn on the MySQL Slow Query Log to keep an eye on any queries that are taking a l...
https://stackoverflow.com/ques... 

Why does C# not provide the C++ style 'friend' keyword? [closed]

The C++ friend keyword allows a class A to designate class B as its friend. This allows Class B to access the private / protected members of class A . ...
https://stackoverflow.com/ques... 

How to disable all caps menu titles in Visual Studio

I assume the title is self explanatory. Just want to change the look of the Visual Studio 2012 not to show menu title in all capital letters. ...
https://stackoverflow.com/ques... 

What does void mean in C, C++, and C#?

...ing to get the fundamentals on where the term " void " comes from, and why it is called void. The intention of the question is to assist someone who has no C experience, and is suddenly looking at a C-based codebase. ...
https://stackoverflow.com/ques... 

How to replace plain URLs with links?

... idea. You must imagine this is a common enough problem that someone has written, debugged and tested a library for it, according to the RFCs. URIs are complex - check out the code for URL parsing in Node.js and the Wikipedia page on URI schemes. There are a ton of edge cases when it comes to parsi...
https://stackoverflow.com/ques... 

Best exception for an invalid generic type argument

I'm currently writing some code for UnconstrainedMelody which has generic methods to do with enums. 11 Answers ...