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Singleton with Arguments in Java
I was reading the Singleton article on Wikipedia and I came across this example:
20 Answers
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Is module __file__ attribute absolute or relative?
I'm having trouble understanding __file__ . From what I understand, __file__ returns the absolute path from which the module was loaded.
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Cleanest way to toggle a boolean variable in Java?
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and it conforms to DRY :)
– Tetha
Oct 22 '08 at 6:21
6
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List files with certain extensions with ls and grep
I just want to get the files from the current dir and only output .mp4 .mp3 .exe files nothing else.
So I thought I could just do this:
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How to show the text on a ImageButton?
I have an ImageButton and I want to show a text and an image on it. But when I try on emulator:
11 Answers
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Remove duplicate lines without sorting [duplicate]
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The UNIX Bash Scripting blog suggests:
awk '!x[$0]++'
This command is telling awk which lines to print. The variable $0 holds the entire contents of a line and square brackets are array access. So, for each line of the file, the node of the array x is incremented and the line printed if ...
Can you have if-then-else logic in SQL? [duplicate]
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The CASE statement is the closest to an IF statement in SQL, and is supported on all versions of SQL Server:
SELECT CASE <variable>
WHEN <value> THEN <returnvalue>
WHEN <othervalue> THEN <returnthis>
ELSE <retur...
Is it possible to allow didSet to be called during initialization in Swift?
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Create an own set-Method and use it within your init-Method:
class SomeClass {
var someProperty: AnyObject! {
didSet {
//do some Stuff
}
}
init(someProperty: AnyObject) {
setSomeProperty(someProperty)...
Create a new Ruby on Rails application using MySQL instead of SQLite
...rails project, change the adapter in the config/database.yml file to mysql and make sure you specify a valid username and password, and optionally, a socket:
development:
adapter: mysql2
database: db_name_dev
username: koploper
password:
host: localhost
socket: /tmp/mysql.sock
Next, m...
How to Delete using INNER JOIN with SQL Server?
...d2 w
INNER JOIN Employee e
ON EmployeeRun=EmployeeNo
WHERE Company = '1' AND Date = '2013-05-06'
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