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How to create the perfect OOP application [closed]

...calculations in double. Do financial calculations in decimal; that is what it is for. Use double to solve physics problems, not financial problems. The major design flaw in your program is that policy is in the wrong place. Who is in charge of computing the taxes? You've put the product in charg...
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What do the terms “CPU bound” and “I/O bound” mean?

... It's pretty intuitive: A program is CPU bound if it would go faster if the CPU were faster, i.e. it spends the majority of its time simply using the CPU (doing calculations). A program that computes new digits of π will typ...
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How to generate a random int in C?

... Note: Don't use rand() for security. If you need a cryptographically secure number, see this answer instead. #include <time.h> #include <stdlib.h> srand(time(NULL)); // Initialization, should only be called once. int r = rand(); // Ret...
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vs.

...rred plugin, and apparently, the content gets http requested regardless if it gets rendered or not. object is the current standard tag to embed something on a page. embed was included by Netscape (along img) before anything like object were on the w3c mind. This is how you include a PDF with obj...
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Convert String to Type in C# [duplicate]

... You can only use just the name of the type (with its namespace, of course) if the type is in mscorlib or the calling assembly. Otherwise, you've got to include the assembly name as well: Type type = Type.GetType("Namespace.MyClass, MyAssembly"); If the assembly is st...
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Subprocess changing directory

...call a command named cd. But cd is a shell internal. So you can only call it as subprocess.call('cd ..', shell=True) # pointless code! See text below. But it is pointless to do so. As no process can change another process's working directory (again, at least on a UNIX-like OS, but as well on Win...
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Algorithm to detect overlapping periods [duplicate]

...n end date. I need to detect if my first time period (A) is overlapping with another one(B/C). In my case, if the start of B is equal to the end of A, they are not overlapping(the inverse too) I found the following cases: ...
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Rails 4: assets not loading in production

... config.assets.precompile = ['*.js', '*.css', '*.css.erb'] This works with me. use following command to pre-compile assets RAILS_ENV=production bundle exec rake assets:precompile Best of luck! share | ...
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Why is “Set as Startup” option stored in the suo file and not the sln file?

It seems like this setting should be stored in the solution file so it's shared across all users and part of source code control. Since we don't check in the suo file, each user has to set this separately which seems strange. ...
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SQL Server - SELECT FROM stored procedure

...nstead of a procedure. A procedure can return multiple result sets, each with its own schema. It's not suitable for using in a SELECT statement. share | improve this answer | ...