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How to SSH to a VirtualBox guest externally through a host? [closed]
...Guest port", insert 22. Everything else of the rule can be left blank.
or from the command line
VBoxManage modifyvm myserver --natpf1 "ssh,tcp,,3022,,22"
where 'myserver' is the name of the created VM. Check the added rules:
VBoxManage showvminfo myserver | grep 'Rule'
That's all! Please be s...
Re-raise exception with a different type and message, preserving existing information
... exception hierarchy for the exceptions that it can raise (e.g. inheriting from a FooError abstract class for all the foo module's specific exceptions). This allows users of the module to catch those particular exceptions and handle them distinctly, if needed. But many of the exceptions raised f...
Java - removing first character of a string
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Use the substring() function with an argument of 1 to get the substring from position 1 (after the first character) to the end of the string (leaving the second argument out defaults to the full length of the string).
"Jamaica".substring(1);
...
Why use pip over easy_install? [closed]
...answers here are out of date for 2015 (although the initially accepted one from Daniel Roseman is not). Here's the current state of things:
Binary packages are now distributed as wheels (.whl files)—not just on PyPI, but in third-party repositories like Christoph Gohlke's Extension Packages for ...
Android Studio vs Eclipse + ADT Plugin? [closed]
..., for example you can find a lot of questions about "how to delete project from android studio", my opinion about android studio is: not ready to use it till now, it is promising product but it stuck in tiny errors, eclipse is still gives more flexible than android studio.
– En...
At runtime, find all classes in a Java application that extend a base class
...hen using ClassLoader.getResources() to enumerate all files with this name from all jars. This allows each jar to export its own providers and you can instantiate them by reflection using Class.forName()
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Are negative array indexes allowed in C?
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That is correct. From C99 §6.5.2.1/2:
The definition of the subscript
operator [] is that E1[E2] is
identical to (*((E1)+(E2))).
There's no magic. It's a 1-1 equivalence. As always when dereferencing a pointer (*), you need to b...
socket.io and session?
I'm using express framework. I want to reach session data from socket.io. I tried express dynamicHelpers with client.listener.server.dynamicViewHelpers data, but i can't get session data. Is there a simple way to do this? Please see the code
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Dismissing a Presented View Controller
...ontroller
When a View Controller is presented modally, you can dismiss it (from the second view controller) by calling
// Swift
self.dismiss(animated: true, completion: nil)
// Objective-C
[self dismissViewControllerAnimated:YES completion:nil];
The documentation says,
The presenting view control...
Is the VC++ code DOM accessible from VS addons?
...e you haven't had a lot of luck and there appears to be nothing documented from MS saying this is available, you probably won't have a lot of luck this way. If I were in MS's shoes, I wouldn't make it public; it would just be another support headache, and on a piece of software that isn't even thei...