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Are static variables shared between threads?

...y the JVM's memory model. Here's an article talking about the memory model and how writes become visible to threads. You can't count on changes one thread makes becoming visible to other threads in a timely manner (actually the JVM has no obligation to make those changes visible to you at all, in an...
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Difference between jar and war in Java

What is the difference between a .jar and a .war file? Is it only the file extension or is there something more? 13 A...
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Why doesn't .NET/C# optimize for tail-call recursion?

...ugh analysis to keep the application competitive in the long term with a standard ahead-of-time compilation. Interestingly the NGen compilation steps are not targeted to being more aggressive in their optimizations. I suspect this is because they simply don't want to have bugs where the behaviour i...
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Why is Thread.Sleep so harmful

...it mentioned that Thread.Sleep(); should not be used, but I can't understand why this is so. If Thread.Sleep(); can cause trouble, are there any alternative solutions with the same result that would be safe? ...
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Maintain/Save/Restore scroll position when returning to a ListView

... Try this: // save index and top position int index = mList.getFirstVisiblePosition(); View v = mList.getChildAt(0); int top = (v == null) ? 0 : (v.getTop() - mList.getPaddingTop()); // ... // restore index and position mList.setSelectionFromTop(in...
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Single script to run in both Windows batch and Linux Bash?

...rite a single script file which executes in both Windows (treated as .bat) and Linux (via Bash)? 11 Answers ...
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How to install Xcode Command Line Tools

How do I get the command-line build tools installed with the current Xcode/Mac OS X v10.8 (Mountain Lion) or later? 13 Answ...
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Rails migration for has_and_belongs_to_many join table

...ow do I do a script/generate migration to create a join table for a has_and_belongs_to_many relationship? 6 Answers ...
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What is the difference between g++ and gcc?

What is the difference between g++ and gcc? Which one of them should be used for general c++ development? 10 Answers ...
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What is the difference between char * const and const char *?

... changed). Note: The following two forms are equivalent: const char * and char const * The exact reason for this is described in the C++ standard, but it's important to note and avoid the confusion. I know several coding standards that prefer: char const over const char (with or withou...