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How to convert a string into double and vice versa?

I want to convert a string into a double and after doing some math on it, convert it back to a string. 12 Answers ...
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Auto Resize Image in CSS FlexBox Layout and keeping Aspect Ratio?

...oking for an answer to my distorted images" i got here for the same reason and your solution helped me (what was marked as the actual solution didn't help me at all) – Wagner Danda da Silva Filho Jun 29 '16 at 17:30 ...
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getViewTypeCount and getItemViewType methods of ArrayAdapter

Can somebody in plain words explain me the usage of getViewTypeCount() and getItemViewType() methods of ArrayAdapter ? ...
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How to tell if a string is not defined in a Bash shell script

...Autoconf, you'll find that they do not recommend combining terms with '-a' and do recommend using separate simple tests combined with &&. I've not encountered a system where there is a problem; that doesn't mean they didn't used to exist (but they are probably extremely rare these days, eve...
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Amazon Interview Question: Design an OO parking lot [closed]

Design an OO parking lot. What classes and functions will it have. It should say, full, empty and also be able to find spot for Valet parking. The lot has 3 different types of parking: regular, handicapped and compact. ...
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What is the equivalent of the C# 'var' keyword in Java?

...possible in Java (all Types had names, even if they were extremely verbose and unweildy). I do not know if this has changed in the mean time. var is not the same as dynamic. variables are still 100% statically typed. This will not compile: var myString = "foo"; myString = 3; var is also useful whe...
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Is there a library function for Root mean square error (RMSE) in python?

...lso known as MSE, RMD, or RMS. What problem does it solve? If you understand RMSE: (Root mean squared error), MSE: (Mean Squared Error) RMD (Root mean squared deviation) and RMS: (Root Mean Squared), then asking for a library to calculate this for you is unnecessary over-engineering. All these me...
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Are global variables in PHP considered bad practice? If so, why?

...l way. I generally have a variable that contains the system configuration, and when I nead to access this variable in a function, I do global $var; . ...
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.classpath and .project - check into version control or not?

...recent Eclipse3.5 settings, where build paths support relative paths: And Eclipse3.6 would be better, as it supports relative paths for path variables in Linked Resources: (since 3.6M5) share | ...
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How do I force Sublime Text to indent two spaces per tab?

...this configuration to Ruby files, first open up a Ruby file in the editor, and then go to Preferences -> Settings - Syntax Specific. This should open a settings window named Ruby.sublime-settings Save these settings: { "tab_size": 2, "translate_tabs_to_spaces": true, "detect_indentation":...