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How do you calculate log base 2 in Java for integers?
....log(2)) fails (just because there are only 32 "dangerous" values), but it does not mean that it will work the same way on any PC.
The usual trick here is using "epsilon" when rounding. Like (int)(Math.log(x)/Math.log(2)+1e-10) should never fail. The choice of this "epsilon" is not a trivial task.
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How to fix “Attempted relative import in non-package” even with __init__.py
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I'm not either of the downvoters, but I feel this could use quite a bit more detail, given the popularity of this question and answer. Noting stuff like from what directory to execute the above shell command, the fact that you need __init__.pys al...
How to restart Activity in Android
How do I restart an Android Activity ? I tried the following, but the Activity simply quits.
21 Answers
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What's the best way to distribute Java applications? [closed]
... like NSIS. This gives you a lot more control, although the user can still do stupid stuff like un-installing the java runtime. This is probably the most popular approach, and what I currently use.
Use Webstart. This also assumes that the user has the correct java version installed, but it's a lot e...
Convert Mercurial project to Git [duplicate]
... you got "revsymbol not found" error. You need to update your Mercurial or downgrade fast-export by running git checkout tags/v180317 inside ~/fast-export directory.".
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Swift - encode URL
... Is no one else completely flabbergasted at how long this code is to do this? I mean that method name is already hell of long, even without choosing the allowed character set.
– thatidiotguy
Sep 30 '14 at 20:19
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Very slow compile times on Visual Studio 2005
...d several options for accelerating the build (at this point about half-way down the page):
In decreasing order of speedup:
Install Microsoft hotfix 935225.
Install Microsoft hotfix 947315.
Use a true multicore processor (ie. an Intel Core Duo 2; not a Pentium 4 HT).
Use 3 parallel...
Compiled vs. Interpreted Languages
...nts, which would then execute the machine code "ADD" instruction.
You can do anything that you can do in an interpreted language in a compiled language and vice-versa - they are both Turing complete. Both however have advantages and disadvantages for implementation and use.
I'm going to completely...
What does 'super' do in Python?
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The benefits of super() in single-inheritance are minimal -- mostly, you don't have to hard-code the name of the base class into every method that uses its parent methods.
However, it's almost impossible to use multiple-inheritance without super(). This includes common idioms like mixins, interfa...
How do you perform a left outer join using linq extension methods
... This is actually not nearly as crazy as it seems. Basically GroupJoin does the left outer join, the SelectMany part is only needed depending on what you want to select.
– George Mauer
Nov 16 '14 at 16:36
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