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What is the difference between ports 465 and 587?
These ports 465 and 587 are both used for sending mail (submitting mail) but what is the real difference between them?
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从Sloodle看三维虚拟学习环境的发展趋势 - 资讯 - 清泛网 - 专注C/C++及内核技术
...三维虚拟学习环境 ———Sloodle。通过介绍 Sloodle中的 Web-Intercom、MetaGloss、Choicer、Translator等工具 ,讨论了使用这种三维虚拟环境与 Web技术整合给学习系统带来的挑战和潜力。最后 ,总结并探讨了三维虚拟学习环境的发展趋势。
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C++ static virtual members?
Is it possible in C++ to have a member function that is both static and virtual ? Apparently, there isn't a straightforward way to do it ( static virtual member(); is a compile error), but is there at least a way to achieve the same effect?
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Getting the max value of an enum
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Enum.GetValues() seems to return the values in order, so you can do something like this:
// given this enum:
public enum Foo
{
Fizz = 3,
Bar = 1,
Bang = 2
}
// this gets Fizz
var lastFoo = Enum.GetValues(typeof(Foo)).Cast<Foo>().Last();
Edit
For...
Java EE web development, where do I start and what skills do I need? [closed]
...o learn, at least at a basic level, how to build Java web applications (coming from a .NET background). I would like to be able to build, deploy a simple CMS type application from the ground up.
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How to stop and restart memcached server?
How to stop and restart memcached server 1.4.5 in linux OS from command line?
12 Answers
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How to scroll to the bottom of a UITableView on the iPhone before the view appears
...ht. I would like the table to scroll to the bottom when the view is pushed into view.
35 Answers
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Is there an advantage to use a Synchronized Method instead of a Synchronized Block?
...nized block with an example? Thanks.
There is not a clear advantage of using synchronized method over the block.
Perhaps the only one ( but I wouldn't call it an advantage ) is you don't need to include the object reference this.
Method:
public synchronized void method() { // blocks "this" fro...
Opposite of %in%: exclude rows with values specified in a vector
A categorical variable V1 in a data frame D1 can have values represented by the letters from A to Z. I want to create a subset D2, which excludes some values, say, B, N and T. Basically, I want a command which is the opposite of %in%
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Is there a way to take a screenshot using Java and save it to some sort of image?
...ve it or not, you can actually use java.awt.Robot to "create an image containing pixels read from the screen." You can then write that image to a file on disk.
I just tried it, and the whole thing ends up like:
Rectangle screenRect = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
Buff...