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Timer & TimerTask versus Thread + sleep in Java

...threading issues (such as avoiding deadlocks etc.). And of course it is usually better to use well-tested standard code instead of some homemade solution. share | improve this answer | ...
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what exactly is device pixel ratio?

...d device to download a very high resolution image, only to downscale it locally. You also don't want high-end devices to upscale low resolution images for a blurry user experience. If you are stuck with bitmap images, to accommodate for many different device pixel ratios, you should use CSS Media Q...
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How do I write a custom init for a UIView subclass in Swift?

... The init(frame:) version is the default initializer. You must call it only after initializing your instance variables. If this view is being reconstituted from a Nib then your custom initializer will not be called, and instead the init?(coder:) version will be called. Since Swift now req...
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Dialog to pick image from gallery or from camera

Is there a standard way to call dialog box with choose either to pick an image from the camera or to get from gallery (like in build-in phone book or Skype)? ...
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How to display HTML tags as plain text [duplicate]

I have an input form on my website where HTML is allowed and I'm trying to add instructions about the use of HTML tags. I'd like the text to ...
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How to vertically align into the center of the content of a div with defined width/height?

What would be the correct method to vertically center any content in a defined width/height div . 4 Answers ...
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Why would anybody use C over C++? [closed]

...hoose C over C++. C doesn't seem to get nearly as much flak and if C++ has all these problems why can't you just restrict yourself to the C subset? What are your thoughts/experience? ...
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How to track down log4net problems

I use log4net all the time, but one thing I've never figured out is how to tell what's going on on the inside. For example, I've got a console appender and a database appender in my project. I made a few changes to the database and the code, and now the database appender doesn't work anymore. I'll f...
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How do I delete a fixed number of rows with sorting in PostgreSQL?

...erm row identifier. There's also oid but that only exists if you specifically ask for it when you create the table. share | improve this answer | follow | ...
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C/C++ Struct vs Class

After finishing my C++ class it seemed to me the structs/classes are virtually identical except with a few minor differences. ...