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How to create the perfect OOP application [closed]

...problem description: Basic sales tax is applicable at a rate of 10% on all goods, except books, food, and medical products that are exempt. Import duty is an additional sales tax applicable on all imported goods at a rate of 5%, with no exemptions. When I purchase items I receive a receipt which...
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Filtering collections in C#

... ints that are > than 7, Where returns an // IEnumerable<T> so a call to ToList is required to convert back to a List<T>. List<int> filteredList = myList.Where( x => x > 7).ToList(); If you can't find the .Where, that means you need to import using System.Linq; at the to...
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Logout: GET or POST?

...ST, and I honestly had no clue Chrome comes with pre-fetching built in. Finally, the twit you quoted was could have never offered a better example to the problem I described in my my question and confirms my suspicions. I am up voting your answer and making it the accepted answer. ...
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Is there a way to detect if a browser window is not currently active?

I have JavaScript that is doing activity periodically. When the user is not looking at the site (i.e., the window or tab does not have focus), it'd be nice to not run. ...
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How do I create a comma-separated list from an array in PHP?

...me. For example, maybe you want to quote each fruit and then separate them all by commas: $prefix = $fruitList = ''; foreach ($fruits as $fruit) { $fruitList .= $prefix . '"' . $fruit . '"'; $prefix = ', '; } Also, if you just do it the "normal" way of appending a comma after each item (l...
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How can I change my default database in SQL Server without using MS SQL Server Management Studio?

... Obvious to experienced hands but maybe not so to those doing this occasionally. Square brackets optional, if fields represent contiguous text. – iokevins Jan 10 '19 at 19:26 ...
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Why “no projects found to import”?

...ject into workspace". As the "root directory" I select the directory where all my .java (and .class) files are located. Eclipse writes me that "no projects are found to import". Why? ...
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Difference between Service, Async Task & Thread?

... is the difference between Service, Async Task & Thread. If i am not wrong all of them are used to do some stuff in background. So, how to decide which to use and when? ...
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Exposing a port on a live Docker container

...e -p flag with docker run to assign ports, but once a container is actually running, is there a command to open/map additional ports live? ...
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How to remove all white space from the beginning or end of a string?

How can I remove all white space from the beginning and end of a string? 6 Answers 6 ...