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Using bitwise OR 0 to floor a number
...oving the fractional part
All bitwise operations except unsigned right shift, >>>, work on signed 32-bit integers. So using bitwise operations will convert a float to an integer.
Does it have any advantages over doing Math.floor? Maybe it's a bit
faster? (pun not intended)
http://...
Variable is accessed within inner class. Needs to be declared final
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If you don't want to make it final, you can always just make it a global variable.
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What are the differences between the urllib, urllib2, urllib3 and requests module?
In Python, what are the differences between the urllib , urllib2 , urllib3 and requests modules? Why are there three? They seem to do the same thing...
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how to convert binary string to decimal?
...t function converts strings to numbers, and it takes a second argument specifying the base in which the string representation is:
var digit = parseInt(binary, 2);
See it in action.
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SQLite Concurrent Access
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If most of those concurrent accesses are reads (e.g. SELECT), SQLite can handle them very well. But if you start writing concurrently, lock contention could become an issue. A lot would then depend on how fast your filesystem...
How to call a parent class function from derived class function?
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I'll take the risk of stating the obvious: You call the function, if it's defined in the base class it's automatically available in the derived class (unless it's private).
If there is a function with the same signature in the derived class you can disambiguate it by adding the base class'...
Virtualbox “port forward” from Guest to Host [closed]
...ication Host -> Guest
Connect to the Guest and find out the ip address:
ifconfig
example of result (ip address is 10.0.2.15):
eth0 Link encap:Ethernet HWaddr 08:00:27:AE:36:99
inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0
Go to Vbox instance window -> Menu -> ...
Removing an activity from the history stack
...ibute to "true" in the relevant <activity> entries in your AndroidManifest.xml file. For example:
<activity
android:name=".AnyActivity"
android:noHistory="true" />
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IntelliJ: Never use wildcard imports
...ports?
Under 'Settings > Code Style > Imports', I can see that you can specify the 'class count' prior to IntelliJ using wildcard imports. However, if I never want to use wildcard imports can I turn this functionality off?
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iphone: Where the .dSYM file is located in crash report
According to this page here if you have proper application binary and .dSYM file then it is easy to symbolic them. But where are .dSYM and application binary files located?
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