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How to compare dates in datetime fields in Postgresql?
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Changing the color of the axis, ticks and labels for a plot in matplotlib
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How does the socket API accept() function work?
...a database entry, the message is handed off to an existing handler, else a new database entry is created and a new handler spawned to handle that socket.
In the early days of the ARPAnet, certain protocols (FTP for one) would listen to a specified port for connection requests, and reply with a hand...
Is it possible to insert multiple rows at a time in an SQLite database?
...7.11 SQLite does support multi-row-insert. Richard Hipp comments:
"The new multi-valued insert is merely syntactic suger (sic) for the compound
insert. There is no performance advantage one way or the other."
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How can I get a resource “Folder” from inside my jar File?
...d the solution:
final String path = "sample/folder";
final File jarFile = new File(getClass().getProtectionDomain().getCodeSource().getLocation().getPath());
if(jarFile.isFile()) { // Run with JAR file
final JarFile jar = new JarFile(jarFile);
final Enumeration<JarEntry> entries = j...
format statement in a string resource file
...tyling:
<string name="welcome_messages">Hello, %1$s! You have %2$d new messages.</string>
In this example, the format string has two arguments: %1$s is a
string and %2$d is a decimal integer. You can format the string with
arguments from your application like this:
Resources...
What does Class mean in Java?
...collections, then we see strange compiletime errors:
List<?> list = new ArrayList<Object>(); // ArrayList<?> is not allowed
list.add("a String"); // doesn't compile ...
Our List<?> is not a collection, that is suitable for just any type of object. It ca...
How to show and update echo on same line
... character.
The 2 options are -n and -e.
-n will not output the trailing newline. So that saves me from going to a new line each time I echo something.
-e will allow me to interpret backslash escape symbols.
Guess what escape symbol I want to use for this: \r. Yes, carriage return would send me ...
How can I convert NSDictionary to NSData and vice versa?
I am sending NSString and UIImage using bluetooth. I decided to store both in a NSDictionary and then convert the dictionary to NSData .
...
An async/await example that causes a deadlock
...ices for asynchronous programming using c#'s async / await keywords (I'm new to c# 5.0).
5 Answers
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