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Why do we declare Loggers static final?
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private - so that no other class can hijack your logger
static - so there is only one logger instance per class, also avoiding attempts to serialize loggers
final - no need to change the logger over the lifetime of the class
Also, I prefer name log to be as simple ...
Draw multi-line text to Canvas
A hopefully quick question, but I can't seem to find any examples... I'd like to write multi-line text to a custom View via a Canvas , and in onDraw() I have:
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Resize UIImage by keeping Aspect ratio and width
I seen in many posts for resizing the image by keeping aspect ratio. These functions uses the fixed points(Width and Height) for RECT while resizing. But in my project, I need to resize the view based on the Width alone, Height should be taken automatically based on the aspect ratio.
anyone help me ...
Getting all types in a namespace via reflection
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caesay
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answered Sep 17 '08 at 3:43
akuaku
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Use dynamic variable names in JavaScript
In PHP you can do amazing/horrendous things like this:
17 Answers
17
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When to use a “has_many :through” relation in Rails?
...f you wanted to have users belong to groups, then you could do something like this:
class Group < ActiveRecord::Base
has_many :users
end
class User < ActiveRecord::Base
belongs_to :group
end
What if you wanted to track additional metadata around the association? For example, when the ...
In Rails - is there a rails method to convert newlines to ?
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Yes, rails has simple_format which does exactly what you are looking for, and slightly better since it also adds paragraph tags. See
http://api.rubyonrails.org/classes/ActionView/Helpers/TextHelper.html#method-i-simple_format
Example:
simple_format(mystring)
Note that simple_format...
Trim trailing spaces in Xcode
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You can create a script and bind it to a keyboard shortcut:
Select Scripts Menu > Edit User Scripts...
Press the + button and select New Shell Script
Give it a name like "Strip Trailing Spaces", and give it a shortcut like ⌃⇧R.
Set Input to "Selection" and ...
How to run a PowerShell script without displaying a window?
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You can either run it like this (but this shows a windows for a while):
PowerShell.exe -windowstyle hidden { your script.. }
Or you use a helper file I created to avoid the window called PsRun.exe that does exactly that. You can download source a...
How to save a Python interactive session?
I find myself frequently using Python's interpreter to work with databases, files, etc -- basically a lot of manual formatting of semi-structured data. I don't properly save and clean up the useful bits as often as I would like. Is there a way to save my input into the shell (db connections, varia...