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How does a Java HashMap handle different objects with the same hash code?
...ith the keys of all pairs in the bucket, by comparing them with equals().
Now you can see how this is very efficient for looking up key-value pairs in a map: by the hash code of the key the hashmap immediately knows in which bucket to look, so that it only has to test against what's in that bucket....
Lisp in the real world
...from anyone who has used Lisp or seen it used in the "real world", or who knows whether it is considered a purely academic language.
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reference assignment is atomic so why is Interlocked.Exchange(ref Object, Object) needed?
...ram is right because you understand how it works, not right by accident.)
Now suppose you make a variable which is an alias of a volatile field by passing a ref to that field. Inside the called method, the compiler has no reason whatsoever to know that the reference needs to have volatile semantics...
Declaring pointers; asterisk on the left or right of the space between the type and name? [duplicate
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It doesn't matter. Someone will now come along and close the question as a dupe, and someone else will show how the int* a way breaks if you declare multiple variables in the same declarations while the int *a way better reflects the syntactical structure o...
What does the brk() system call do?
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+1 for a detailed explanation. Do you know if malloc still relies on brk or if it is using mmap to be able to "give back" separate memory blocks?
– Anders Abel
Aug 9 '11 at 6:08
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What is the best way to force yourself to master vi? [closed]
...aving a vimmer next to me to continuously ask questions. Find someone who knows vim well and make friends with them! Quickly look at the nav keys and get a handle on the modes. Try it out in 15 min chunks, you'll get it.
– camflan
Sep 28 '08 at 16:27
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Does using final for variables in Java improve garbage collection?
... // Doesn't work.
There may be some small optimisation based around the knowledge that the JVM will never have to modify the reference (such as not having check to see if it has changed) but it would be so minor as to not worry about.
Final should be thought of as useful meta-data to the develope...
FragmentPagerAdapter Exists Only In Android.Support.V4.App (and not Android.App)
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But now it is deprecated in api 27 -> to use the v4 version again. Then we have the problem again, with not way to use the none support lib Fragment
– Morten Holmgaard
Apr 5 '18 at 8:32
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What is correct content-type for excel files? [duplicate]
...licked, not get saved on desktop, or get opened embedded in a browser etc. Now obviously it all depends on how everything is configured for each user, but what's the best Content-Type and other settings to achieve just that most of the time?
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What are the differences between Pandas and NumPy+SciPy in Python? [closed]
... edited May 20 at 12:16
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answered Jun 18 '12 at 5:11
Wes McKinn...