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When to use AtomicReference in Java?
...rst need to obtain a lock on that object. This prevents some other thread from coming in during the meantime and changing the value in the middle of the new string concatenation. Then when your thread resumes, you clobber the work of the other thread. But honestly that code will work, it looks cle...
Piping buffer to external command in Vim
...ets say mail). My final purpose is to set a shortcut to quickly send email from current Vim buffer. I am guessing this should be a trivial stuff, but I couldn't find a way to send Vim buffer to an external command. Thanks in advance.
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Encrypting & Decrypting a String in C# [duplicate]
... salt and IV is prepended to the cipher text upon encryption and extracted from it again in order to perform the decryption. The result of this is that encrypting the exact same plaintext with the exact same password gives and entirely different ciphertext result each time.
The "strength" of using...
Objective-C for Windows
... Objective-C++ with GNUStep a few years ago. However, GNUStep does compile from just about any platform. Cocotron is a very mac-centric project. Although it is probably possible to compile it on other platforms, it comes XCode project files, not makefiles, so you can only compile its frameworks out ...
Database cluster and load balancing
...s how do they keep the data between synchronized. And how does this differ from load balancing from a database server perspective?
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Can we make unsigned byte in Java
...is unsigned".
As primitives are signed the Java compiler will prevent you from assigning a value higher than +127 to a byte (or lower than -128). However, there's nothing to stop you downcasting an int (or short) in order to achieve this:
int i = 200; // 0000 0000 0000 0000 0000 0000 1100 1000 (20...
How to form tuple column from two columns in Pandas
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Post as a guest
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REST API Login Pattern
...hitecture by Roy T. Fielding and Richard N. Taylor, i.e. sequence of works from all REST terminology came from, contains definition of client-server interaction:
All REST interactions are stateless. That is, each request contains
all of the information necessary for a connector to understand t...
How can I do DNS lookups in Python, including referring to /etc/hosts?
...e latter,
import socket
print(socket.gethostbyname('localhost')) # result from hosts file
print(socket.gethostbyname('google.com')) # your os sends out a dns query
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What does the ng stand for in Angular.js directives
... in order to avoid possible name collisions in future versions of Angular.
From the FAQ:
Why is this project called "AngularJS"? Why is the namespace called "ng"?
Because HTML has Angular brackets and "ng" sounds like "Angular".
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