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Stateless and Stateful Enterprise Java Beans
... am trying to understand the difference between stateless and stateful session beans. If stateless session beans do not retain their state in between method calls, why is my program acting the way it is?
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Issue with adding common code as git submodule: “already exists in the index”
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I'm afraid there's not enough information in your question to be certain about what's going on, since you haven't replied to my follow-up question, but this may be of help in any case.
That error means that projectfolder is already staged ("already exists in the...
Iterating over Java collections in Scala
... style loop, so I have been trying to convert it to a native Scala collection but will no luck.
9 Answers
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Can C++ code be valid in both C++03 and C++11 but do different things?
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The answer is a definite yes. On the plus side there is:
Code that previously implicitly copied objects will now implicitly move them when possible.
On the negative side, several examples are listed in the appendix C of the standard. Even though there are many more negative ones than positive, ...
NSDate get year/month/day
... can I get the year/month/day of a NSDate object, given no other information? I realize that I could probably do this with something similar to this:
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C++特化模板函数的符号多重定义错误问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
...l.cpp 和主模块两个文件中——生成工程没有链接错误。去下载源代码自己尝试一下吧。
如果你正在为其他开发人员写模板库，extern 方式会很不爽，因为你必须创建一个带目标模块的链接库（lib），它包含有特化。如果你已经有...
Sound effects in JavaScript / HTML5
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HTML5 Audio objects
You don't need to bother with <audio> elements. HTML 5 lets you access Audio objects directly:
var snd = new Audio("file.wav"); // buffers automatically when created
snd.play();
There's no support for mix...
How to copy text to clipboard/pasteboard with Swift
I'm looking for a clean example of how to copy text to iOS clipboard that can then be used/pasted in other apps.
4 Answers
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Loading/Downloading image from URL on Swift
I'd like to load an image from a URL in my application, so I first tried with Objective-C and it worked, however, with Swift, I've a compilation error:
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What breaking changes are introduced in C++11?
...ges in C++11 that will cause some old code to stop compiling: the introduction of explicit operator bool() in the standard library, replacing old instances of operator void*() . Granted, the code that this will break is probably code that should not have been valid in the first place, but it's st...