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What is an unsigned char?
In C/C++, what an unsigned char is used for? How is it different from a regular char ?
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What does `:_*` (colon underscore star) do in Scala?
I have the following piece of code from this question :
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What is the @Html.DisplayFor syntax for?
I understand that in Razor, @Html does a bunch of neat things, like generate HTML for links, inputs, etc.
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What does a tilde in angle brackets mean when creating a Java generic class?
I was reading through some JMockit examples and found this code:
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git produces Gtk-WARNING: cannot open display
I've been working on my project remotely through the command line on a machine to which I don't have admin rights and after running git push origin master I get the following error message:
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What is the mouse down selector in CSS?
I have noticed that buttons and other elements have a default styling and behave in 3 steps: normal view, hover/focus view and mousedown/click view, in CSS I can change the styling of normal view and hover view like this:
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How to style a div to be a responsive square? [duplicate]
I want my div to adapt its height to always equal its width. The width is percental. When the parent's width decreases, the box should decrease by keeping its aspect ratio.
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How to empty/destroy a session in rails?
I can't seem to find it anywhere... How do I delete/destroy/reset/empty/clear a user's session in Rails? Not just one value but the whole thing..
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When using the Java debugger in Intellij what does “Drop Frame” mean?
I was using the Java debugger within Intellij 8 and noticed a button labeled "drop frame", does anybody know what purpose this serves? How/why would this be used/useful?
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How to read the Stock CPU Usage data
On Ice Cream Sandwich, an option in the Developer Options is "Show CPU Usage", which adds an overlay on the screen (see screenshot below).
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