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Observer Design Pattern vs “Listeners”
...ous toolkits. Is there a difference between the concepts, or are Listeners and Observers really the same thing.
3 Answers
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LINQ query to return a Dictionary
...ction of MyClass that I'd like to query using LINQ to get distinct values, and get back a Dictionary as the result, but I can't figure out how I can do it any simpler than I'm doing below. What would some cleaner code be that I can use to get the Dictionary as my result?
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Do I need to manually close an ifstream?
...e before the end of a function you can always use a nested scope.
In the standard (27.8.1.5 Class template basic_ifstream), ifstream is to be implemented with a basic_filebuf member holding the actual file handle. It is held as a member so that when an ifstream object destructs, it also calls the d...
Proper usage of Java -D command-line parameters
... passing a -D parameter in Java, what is the proper way of writing the command-line and then accessing it from code?
3 Ans...
Rails: Check output of path helper from console
... Rails console, you can call app.post_path. This will work in Rails ~= 2.3 and >= 3.1.0.
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How to convert a ruby hash object to JSON?
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I tried the same thing with Ruby object and it does not work?? >> require 'json' => true >> class Person >> attr_accessor :fname, :lname >> end => nil >> p = Person.new => #<Person:0x101155f70> >> p.fname = "Bill...
Getting attributes of Enum's value
...ould like to know if it is possible to get attributes of the enum values and not of the enum itself? For example, suppose I have the following enum :
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In PHP, how to detect the execution is from CLI mode or through browser ? [duplicate]
I have a common script which Im including in my PHPcron files and the files which are accessing through the browser. Some part of the code, I need only for non cron files. How can I detect whether the execution is from CLI or through browser (I know it can be done by passing some arguments with the ...
How to find which rspec test is taking so long
One (or a couple) of our tests are taking forever and we'd like to optimize them.
1 Answer
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Why don't Java's +=, -=, *=, /= compound assignment operators require casting?
...6.2
[...] the following code is correct:
short x = 3;
x += 4.6;
and results in x having the value 7 because it is equivalent to:
short x = 3;
x = (short)(x + 4.6);
In other words, your assumption is correct.
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