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System.currentTimeMillis vs System.nanoTime
...m.currentTimeMillis() or System.nanoTime() when updating my object's positions in my game? Their change in movement is directly proportional to the elapsed time since the last call and I want to be as precise as possible.
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What's the difference between window.location and document.location in JavaScript?
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According to the W3C, they are the same. In reality, for cross browser safety, you should use window.location rather than document.location.
See: http://www.w3.org/TR/html/browsers.html#dom-location
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Maximum and Minimum values for ints
..., which is the maximum value representable by a signed word. Equivalently, it's the size of the largest possible list or in-memory sequence.
Generally, the maximum value representable by an unsigned word will be sys.maxsize * 2 + 1, and the number of bits in a word will be math.log2(sys.maxsize * 2...
index.php not loading by default
I have just installed CentOS, Apache and PHP. When I visit my site http://example.com/myapp/ , it says "forbidden". By default it's not loading the index.php file.
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SSH Private Key Permissions using Git GUI or ssh-keygen are too open
Recently I've been unable to clone or push to github, and I'm trying to find the root cause.
25 Answers
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How to create custom easing function with Core Animation?
I am animating a CALayer along a CGPath (QuadCurve) quite nicely in iOS. But I'd like to use a more interesting easing function than the few provided by Apple (EaseIn/EaseOut etc). For instance, a bounce or elastic function.
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Why should I use tags vs. release/beta branches for versioning?
I've been using git for about a year and would like to use tagging to, well, tag commits at different versions. I've found lots of info on the commands to use to work with tags, but what I'd like to know is why use tagging at all if I can just create a new branch called 1.1.0 and not have to cloud...
What are detached, persistent and transient objects in hibernate?
...e detached, persistent and transient objects in hibernate? Please explain with an example.
5 Answers
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Android and setting alpha for (image) view alpha
...ive is to use View.setAlpha(float) whose XML counterpart is android:alpha. It takes a range of 0.0 to 1.0 instead of 0 to 255. Use it e.g. like
<ImageView android:alpha="0.4">
However, the latter in available only since API level 11.
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Eclipse / Android : “Errors running builder 'Android Pre Compiler' on project…”
... "Files and folders", "All children". In the text entry box input ".svn" (without quotes).
Restart Eclipse.
I had the same problem with .git folder, it worked like a charm.
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