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How to set the context path of a web application in Tomcat 7.0

... What you can do is the following; Add a file called ROOT.xml in <catalina_home>/conf/Catalina/localhost/ This ROOT.xml will override the default settings for the root context of the tomcat installation for that engine and host (Catalina and localhost). Enter the ...
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Is Java “pass-by-reference” or “pass-by-value”?

... Java is always pass-by-value. Unfortunately, we never handle an object at all, instead juggling object-handles called references (which are passed by value of course). The chosen terminology and semantics easily confuse many beginners. It goes like this: public static void main(String[] args) { ...
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How do I change the working directory in Python?

...If the exception is thrown, do not perform any recursive operations, especially destructive ones. They will operate on the old path and not the new one. Return to your old directory when you're done. This can be done in an exception-safe manner by wrapping your chdir call in a context manager, lik...
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Android - How To Override the “Back” button so it doesn't Finish() my Activity?

...ACK. You just need the following to catch the back key (Make sure not to call super in onBackPressed()). Also, if you plan on having a service run in the background, make sure to look at startForeground() and make sure to have an ongoing notification or else Android will kill your service if it ne...
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Truncate number to two decimal places without rounding

... @DarkHippo Thats because 4.27 is actually 4.26999999999, Math.round is generally a better solution, albeit not the answer to the original question. Realistically given the output is a string this should be done using string manipulation instead of a numeric solu...
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How much of a git sha is *generally* considered necessary to uniquely identify a change in a given c

...of it colliding would be negligible, how much of the SHA substring is generally required? 5 Answers ...
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Revert changes to a file in a commit

...wiFissehaye : I think git checkout will only revert the changes again to fall back to the state what was in commit. I did 'git add filename ; git commit --amend' to remove the file from commit. – ViFI Oct 18 '16 at 18:20 ...
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Command copy exited with code 4 when building - Visual Studio restart solves it

... found is to use the /C option for xcopy (which continues on error). Not really a solution but mostly it has stopped my builds from failing. Another solution which only works on 32 bit is to use the unlocker tool to release the windows handles on the file before the copy. Edit: I've just realise...
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Android Crop Center of Bitmap

...ublic int getSquareCropDimensionForBitmap(Bitmap bitmap) { //use the smallest dimension of the image to crop to return Math.min(bitmap.getWidth(), bitmap.getHeight()); } If you want the bitmap object to be recycled, you can pass options that make it so: bitmap = ThumbnailUtils.extractThum...
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How to check if an option is selected?

... @gdoron I totally agree with you. Maybe those of us brought up on jQuery need to take a remedial JavaScript class. :) – iambriansreed Apr 18 '12 at 16:38 ...