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Why do Objective-C files use the .m extension?
Since I started learning Objective-C and Cocoa, I've been wondering why they have chosen the extension .m for the implementation files - was it supposed to mean something, or was it just a random letter?
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How to create and handle composite primary key in JPA
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You can make an Embedded class, which contains your two keys, and then have a reference to that class as EmbeddedId in your Entity.
You would need the @EmbeddedId and @Embeddable annotations.
@Entity
public class YourEntity {
@EmbeddedId
private MyKey myKey;
@Column(name ...
Reliable timer in a console application
... a threaded timer as the other types can drift if the main thread is busy, and I need this to be reliable.
2 Answers
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Show current key setting?
I'm having a problem with VIM whereby none of my commands work.
3 Answers
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Proper way to add svn:executable
...few other files were checked in without the executable bit do not have it, and I want to set the svn:executable property:
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shell init issue when click tab, what's wrong with getcwd?
...ory was recreated in the meantime, just cd to another (existing) directory and then cd back; the simplest would be: cd; cd -.
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Regular expression search replace in Sublime Text 2
...for the first capture group (the first match of a pattern in parentheses), and indeed Sublime supports both syntaxes. So try:
my name used to be \1
or
my name used to be $1
Also note that your original capture pattern:
my name is (\w)+
is incorrect and will only capture the final letter of ...
emacs, unsplit a particular window split
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I've been using Emacs for 30 years and never noticed this feature!
– Blisterpeanuts
Jun 10 at 12:59
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Choose newline character in Notepad++
I notice that when I load a text file, Notepad++ will recognize and use whatever the newline character in that file is, \n or \r\n .
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Open a URL in a new tab (and not a new window)
... demonstrate this.)
CSS3 proposed target-new, but the specification was abandoned.
The reverse is not true; by specifying dimensions for the window in the third argument of window.open(), you can trigger a new window when the preference is for tabs.
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