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Activity restart on rotation Android

... out the keyboard) then my Activity is restarted ( onCreate is called). Now, this is probably how it's supposed to be, but I do a lot of initial setting up in the onCreate method, so I need either: ...
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Why Java needs Serializable interface?

...ne, and I was probably too immature to see it that way at the time. Fixing now :) – Yoni Roit Mar 6 '13 at 19:55  |  show 2 more comments ...
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What is the use of static variable in C#? When to use it? Why can't I declare the static variable in

... variable. When I run this code the output will be 10 and 10. Its simple. Now let's look at the static variable here; I am declaring the variable as a static. Example with static variable: public class Variable { public static int i = 5; public void test() { i = i + 5; ...
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Get current time in milliseconds in Python?

... @ParallelUniverse: .utcnow() uses GetSystemTimeAsFileTime() on recent CPython on Windows. Wouldn't time.clock() call (QueryPerformanceCounter()) introduce more noise than it might reduce? See Precision is not the same as accuracy. ...
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How can I save an image with PIL?

... BMP (without the dot) or pass the output name with the extension already. Now to handle the error you need to properly modify your data in the frequency domain to be saved as an integer image, PIL is telling you that it doesn't accept float data to save as BMP. Here is a suggestion (with other mino...
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Installing Java 7 on Ubuntu

...ind a paywall. Also, OpenJDK has grown up and is a more viable alternative nowadays. In Ubuntu 16.04 and higher, Java 7 is no longer available. Usually you're best off installing Java 8 (or 9) instead. sudo apt-get install openjdk-8-jre or, f you also want the compiler, get the jdk: sudo apt-...
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Chrome ignores autocomplete=“off”

... UPDATE It seems now Chrome ignores the style="display: none;" or style="visibility: hidden; attributes. You can change it to something like: <input style="opacity: 0;position: absolute;"> <input type="password" style="opacity: 0;p...
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How can I produce an effect similar to the iOS 7 blur view?

... API for this, and said that this approach was the "least evil" option for now and is fairly safe as written. Specifically he said do not try to do any animations of the frame or transform of this toolbar/view or anything like that, or bad things will happen. He also strongly suggested to file Radar...
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Difference between volatile and synchronized in Java

...ariables cannot be reordered with each other. The difference is that it is now no longer so easy to reorder normal field accesses around them. Writing to a volatile field has the same memory effect as a monitor release, and reading from a volatile field has the same memory effect as a monitor acquir...
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Are PHP Variables passed by value or by reference?

... $str would be assigned null, in your case. – The Unknown Dev Jan 22 '15 at 19:31 if you do it this way @ObmerkKronen ...