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How to center canvas in html5

I've been searching for a solution for a while now, but haven't found anything. Maybe it's just my search terms. Well, I'm trying to make the canvas center according to the size of the browser window. The canvas is 800x600. And if the window gets below 800x600, it should resize as well(but that's no...
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Recommended way to save uploaded files in a servlet application

...here that one should not save the file in the server anyway as it is not portable, transactional and requires external parameters. However, given that I need a tmp solution for tomcat (7) and that I have (relative) control over the server machine I want to know : ...
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Outputting data from unit test in python

... from a failed test, so I can examine it to help deduce what caused the error? I am aware of the ability to create a customized message, which can carry some information, but sometimes you might deal with more complex data, that can't easily be represented as a string. ...
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How to convert Strings to and from UTF8 byte arrays in Java

In Java, I have a String and I want to encode it as a byte array (in UTF8, or some other encoding). Alternately, I have a byte array (in some known encoding) and I want to convert it into a Java String. How do I do these conversions? ...
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Make footer stick to bottom of page correctly [duplicate]

... bottom of the screen if the content doesn't go all the way to the bottom, or be at the bottom of the content if the content requires scroll bars. If the content doesn't require scroll bars, it works perfectly, but when the content is too long, the footer is still in the same spot, sitting right on...
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indexOf method in an object array?

... This should honestly be the accepted answer. Most browsers nowadays support Array.prototype.map() – AlbertEngelB Jun 27 '13 at 21:06 10 ...
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What's the difference between session.Merge and session.SaveOrUpdate?

I notice sometimes with my parent/child objects or many-to-many relationships, I need to call either SaveOrUpdate or Merge . Usually, when I need to call SaveOrUpdate , the exception I get on calling Merge has to do with transient objects not being saved first. ...
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Java 8: Where is TriFunction (and kin) in java.util.function? Or what is the alternative?

...estructive one destroys something, but not in the way you may think now. For example, the function Function<Integer,Integer> f = (x,y) -> x + y is a constructive one. As you need to construct something. In the example you constructed the tuple (x,y). Constructive functions have the ...
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Why does Python pep-8 strongly recommend spaces over tabs for indentation?

... Stack Overflow and PEP 8 that the recommendation is to use spaces only for indentation in Python programs. I can understand the need for consistent indentation and I have felt that pain. ...
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How can I copy the content of a branch to a new local branch?

I have worked on a local branch and also pushed the changes to remote. I want to revert the changes on that branch and do something else on it, but I don't want to lose the work completely. I was thinking of something like create a new branch locally and copy the old branch there, then I can revert ...