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How do you calculate log base 2 in Java for integers?
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If you are thinking about using floating-point to help with integer arithmetics, you have to be careful.
I usually try to avoid FP calculations whenever possible.
Floating-point operations are not exact. You can never know for sure what will (int)(Math.log(65536)/Math.log(2)) ev...
How do I pick randomly from an array?
...k a random element from an array of variable length. Normally, I would do it like this:
6 Answers
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Giving UIView rounded corners
My login view has a subview which has a UIActivityView and a UILabel saying "Signing In…". This subview has corners which aren't rounded. How can I make them round?
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How to comment a block in Eclipse?
...her tooling may have different shortcuts.
Ctrl-\ will remove a block of either comment, but won't add comments.
Note: As for Eclipse CDT 4.4.2, Ctrl-Shift-/ will not uncomment a "/* */" block comment. Use Ctrl-Shift-\ in that case.
EDIT: It's Ctrl on a PC, but on a Mac the shortcuts may all be C...
How can I check if a scrollbar is visible?
Is it possible to check the overflow:auto of a div?
19 Answers
19
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What is __gxx_personality_v0 for?
This is a second-hand question from an OS development site, but it made me curious since I couldn't find a decent explanation anywhere.
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How do I check if I'm running on Windows in Python? [duplicate]
I found the platform module but it says it returns 'Windows' and it's returning 'Microsoft' on my machine. I notice in another thread here on stackoverflow it returns 'Vista' sometimes.
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Gradle store on local file system
....gradle folder in your project folder.
If you can't find the cache, maybe it's because you have not cached any artifacts yet. You can always see where Gradle has cached artifacts with a simple script:
apply plugin: 'java'
repositories{
mavenCentral()
}
dependencies{
compile 'com.google.guava...
How do I find the next commit in git? (child/children of ref)
ref^ refers to the commit before ref , what about getting the commit after ref ?
14 Answers
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How to determine an object's class?
...and I have an object of type B or C , how can I determine of which type it is an instance?
11 Answers
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