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How does this CSS produce a circle?

... Let's reformulate that into two questions: Where do width and height actually apply? Let's have a look at the areas of a typical box (source): The height and width apply only on content, if the correct box model is being used (no quirks mode, no old Internet Explorer). Where does border-radi...
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How to get orientation-dependent height and width of the screen?

I'm trying to programmatically determine the current height and width of my application. I use this: 11 Answers ...
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How to use UIScrollView in Storyboard

I have a scroll view with content that is 1000px tall and would like to be able to lay it out for easy design on the storyboard. I know it can be done programmatically but I really want to be able to see it visually. Every time I put a scroll view on a view controller it won't scroll. Is it possib...
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Enabling WiFi on Android Emulator

...s a simulated Wi-Fi access point ("AndroidWifi"), and Android automatically connects to it. More Information: https://developer.android.com/studio/run/emulator.html#wifi share | improve this a...
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When should null values of Boolean be used?

Java boolean allows values of true and false while Boolean allows true , false , and null . I have started to convert my boolean s to Boolean s. This can cause crashes in tests such as ...
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Tools to generate database tables diagram with Postgresql? [closed]

...py -dp postgresql-9.3-1100.jdbc3.jar -s public -noads You'll need to install graphviz as well if you want graphics (apt-get install graphviz for debian based distros). share | improve this answer ...
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How to find if an array contains a specific string in JavaScript/jQuery? [duplicate]

... You really don't need jQuery for this. var myarr = ["I", "like", "turtles"]; var arraycontainsturtles = (myarr.indexOf("turtles") > -1); Hint: indexOf returns a number, representing the position where the specified searchv...
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What does Java option -Xmx stand for? [duplicate]

...it says, -Xmxn Specify the maximum size, in bytes, of the memory allocation pool. This value must a multiple of 1024 greater than 2MB. Append the letter k or K to indicate kilobytes, or m or M to indicate megabytes. The default value is 64MB. The upper limit for this value will be approxim...
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Page redirect after certain time PHP

...ect you to wherever.php in 5 seconds Remember that header() must be called before any actual output is sent, either by normal HTML tags, blank lines in a file, or from PHP. It is a very common error to read code with include, or require, functions, or another file access function, and have spa...
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Why are only final variables accessible in anonymous class?

...used in an anonymous inner class or lambda expression though. It's basically due to the way Java manages closures. When you create an instance of an anonymous inner class, any variables which are used within that class have their values copied in via the autogenerated constructor. This avoids th...