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Sorted collection in Java
... using Collections.sort(...) is that this will maintain a partial order at all times, with O(log(n)) insertion performance, by using a heap data structure, whereas inserting in a sorted ArrayList will be O(n) (i.e., using binary search and move).
However, unlike a List, PriorityQueue does not suppo...
Determining if an Object is of primitive type
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The types in an Object[] will never really be primitive - because you've got references! Here the type of i is int whereas the type of the object referenced by o is Integer (due to auto-boxing).
It sounds like you need to find out whether the type is a "wrapper ...
What is Domain Driven Design (DDD)? [closed]
... read the Wikipedia entry about DDD but still can't figure out what it actually is and how I would go about implementing it in creating my sites?
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How do I print out the contents of an object in Rails for easy debugging?
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I generally first try .inspect, if that doesn't give me what I want, I'll switch to .to_yaml.
class User
attr_accessor :name, :age
end
user = User.new
user.name = "John Smith"
user.age = 30
puts user.inspect
#=> #<User:0x...
Html.ActionLink as a button or an image, not a link
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that is bad in all sorts of ways, it dose not work in all browsers, and you are using a side effect as functionality. witch makes it a very bad practice don't use it. Just because it works it does not make it a good solution.
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Is there a difference between copy initialization and direct initialization?
... expression is initialized to (loosely speaking) in C++17. These objects (called "result objects") are the variables created by a declaration (like a1), artificial objects created when the initialization ends up being discarded, or if an object is needed for reference binding (like, in A_factory_fun...
Color different parts of a RichTextBox string
...ome trouble with this. I used in another place box.Text += mystring and so all the colors disappeared. When I replaced this with box.AppendText(mystring), it worked like a charme.
– Natrium
Apr 13 '12 at 11:38
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Add a reference column migration in Rails 4
...users and uploads tables and wish to add a new relationship between them.
All you need to do is: just generate a migration using the following command:
rails g migration AddUserToUploads user:references
Which will create a migration file as:
class AddUserToUploads < ActiveRecord::Migration
...
Android - Setting a Timeout for an AsyncTask?
...ask.get()
myDownloader.get(30000, TimeUnit.MILLISECONDS);
Note that by calling this in main thread (AKA. UI thread) will block execution, You probably need call it in a separate thread.
share
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Select parent element of known element in Selenium
...rue.
Output: <div class="parent">
//span/ancestor::* - returns all ancestors (including parent).
Output: <div class="parent">, <nav class="second_level_ancestor">, <div class="third_level_ancestor">...
//span/ancestor-or-self::* - returns all ancestors and current...