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Using OpenSSL what does “unable to write 'random state'” mean?
...rnd
For more information, here's the entry from the OpenSSL FAQ:
Sometimes the openssl command line utility does not abort with a "PRNG not seeded" error message, but complains that it is "unable to write 'random state'". This message refers to the default seeding file (see previous answer). A...
What's the best way to refactor a method that has too many (6+) parameters?
...ensure that the required values are set before using the object at compile time.
Builder Pattern.
Think about the relationship between string and StringBuilder. You can get this for your own classes. I like to implement it as a nested class, so class C has related class C.Builder. I also li...
ASP.NET MVC: Unit testing controllers that use UrlHelper
...
For the time being I went with a solution where I abstracted away calls to UrlHelper so I can intercept them. Thanks for your snippet however, it will save me alot of time figuring out how to correctly mock a Request/Response/Control...
Can you nest html forms?
...tside of the form. It still would need JS to submit both forms at the same time. Wouldn't it?
– sdlins
Apr 29 at 21:42
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Scanner vs. StringTokenizer vs. String.Split
..., as provided by StringTokenizer, is too "syntactically fussy" most of the time. From this point of view, StringTokenizer is a bit of a waste of space nowadays, and you may as well just use String.split().
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Building and running app via Gradle and Android Studio is slower than via Eclipse
...lti-project (~10 modules) of which building takes about 20-30 seconds each time. When I press Run in Android Studio, I have to wait every time to rebuild the app, which is extremely slow.
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Where is Erlang used and why? [closed]
...requiring that systems meet at least 5x9's availability (99.999% yearly up-time). This figure doesn't leave much room for downtime during a year! For this reason primarily, Erlang comes loaded with the following features (non-exhaustive):
Horizontal scalability (ability to distribute jobs across ...
Free FTP Library [closed]
...K YOU!!! This really works very well! it lists directory with correct date time :)))) and its fast! sample code: FtpClient ftp = new FtpClient(txtUsername.Text, txtPassword.Text, txtFTPAddress.Text); FtpListItem[] items = ftp.GetListing();//here you can get list with type, name, modifie...
How can I manually generate a .pyc file from a .py file
...ourFileName.py')
Using py_compile.main():
It compiles several files at a time.
import py_compile
py_compile.main(['File1.py','File2.py','File3.py'])
The list can grow as long as you wish. Alternatively, you can obviously pass a list of files in main or even file names in command line args.
Or,...
How to prove that a problem is NP complete?
...n NP
In other words, given some information C, you can create a polynomial time algorithm V that will verify for every possible input X whether X is in your domain or not.
Example
Prove that the problem of vertex covers (that is, for some graph G, does it have a vertex cover set of size k such that ...