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How do I efficiently iterate over each entry in a Java Map?

...erret The only reason you might want to use an iterator is if you need to call its remove method. If that is the case, this other answer shows you how to do it. Otherwise, the enhanced loop as shown in the answer above is the way to go. – assylias Oct 8 '12 at ...
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How do I execute any command editing its file (argument) “in place” using bash?

... This is an answer. I was actually wondering if there is a generic solution to this problem. For example if I want to find all UNIQ lines in a file "in place", I can't do -o – jm. Sep 28 '08 at 21:45 ...
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How can I append a string to an existing field in MySQL?

I want to update the code on all my record to what they currently are plus _standard any ideas? 2 Answers ...
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Unable to locate tools.jar

... Add JAVA_HOME and the /bin directory to your path. You realize that this answer is two years old, right? – duffymo Jul 23 '13 at 12:52 ...
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How to stop unwanted UIButton animation on title change?

... This works for custom buttons: [UIView setAnimationsEnabled:NO]; [_button setTitle:@"title" forState:UIControlStateNormal]; [UIView setAnimationsEnabled:YES]; For system buttons you need to add this before re-enabling animations (thank you @Klaas): [_button layoutIfNeeded]; ...
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Capturing touches on a subview outside the frame of its superview using hitTest:withEvent:

My problem: I have a superview EditView that takes up basically the entire application frame, and a subview MenuView which takes up only the bottom ~20%, and then MenuView contains its own subview ButtonView which actually resides outside of MenuView 's bounds (something like this: Button...
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The term “Context” in programming? [closed]

...roviding your PIN number at the ATM). Either way, it's information that usually helps to get stuff done. Now let's say you take your $100 and buy a plane ticket to fly somewhere warm while your mouth heals. You arrive at a nice sunny destination, but your bag doesn't make it. It's lost somewhere i...
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How do I check if I'm running on Windows in Python? [duplicate]

...lue cannot be determined. If that isn't working, maybe try platform.win32_ver and if it doesn't raise an exception, you're on Windows; but I don't know if that's forward compatible to 64-bit, since it has 32 in the name. win32_ver(release='', version='', csd='', ptype='') Get additional ...
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Why can lambdas be better optimized by the compiler than plain functions?

...assing them to a function template will instantiate a new function specifically for that object. The compiler can thus trivially inline the lambda call. For functions, on the other hand, the old caveat applies: a function pointer gets passed to the function template, and compilers traditionally hav...
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Thread Safety in Python's dictionary

...mic operations, there are corner cases where they aren’t atomic (e.g. if __hash__ or __eq__ are implemented as Python methods) and their atomicity should not be relied upon. Neither should you rely on atomic variable assignment (since this in turn depends on dictionaries). Use the Queue module's Q...