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Write a program that will surely go into deadlock [closed]
...y another thread.
So, an easy way to avoid deadlock is to give some total ordering to resources and impose a rule that resources are only ever acquired by threads in order. Conversely, a deadlock can be intentionally created by running threads that acquire resources, but do not acquire them in orde...
Return first N key:value pairs from dict
... This answer is no longer correct. Python dicts now preserve insertion order, and this is explicitly documented.
– Konrad Rudolph
Sep 22 at 12:30
1
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Mac OSX Lion DNS lookup order [closed]
After upgrading to Mac OSX Lion I figured out that /etc/hosts is not looked up in first place for name resolution anymore. This leads to some side effects like:
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How to check if one of the following items is in a list?
...d answer, but if one list is very long and the other is short, is there an order that would yield faster performance? (i.e., x in long for x in short vs x in short for x in long)
– Luke Sapan
Feb 13 '14 at 18:08
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How to use regex in String.contains() method in Java
...ck if a String contains the words "stores", "store", and "product" in that order, no matter what is in between them.
5 Answ...
Get visible items in RecyclerView
...emPosition();
For LinearLayoutManager, first/last depends on the adapter ordering. Don't query children from RecyclerView; LayoutManager may prefer to layout more items than visible for caching.
share
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Favourite performance tuning tricks [closed]
...arting the query
Check that all processes are accessing tables in the same order
Are indices being used appropriately?
Joins will only use index if both expressions are exactly the same data type
Index will only be used if the first field(s) on the index are matched in the query
Are clustered i...
Are there best practices for (Java) package organization? [closed]
...like:
beans
factories
collections
are wrong.
I prefer, for example:
orders
store
reports
so I can hide implementation details through package visibility. Factory of orders should be in the orders package so details about how to create an order are hidden.
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2 column div layout: right column with fixed width, left fluid
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Fantastic, simple solution and keeps the correct HTML order too!
– user1794295
Jul 11 '14 at 15:16
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How does HashSet compare elements for equality?
...y the default equality comparer.
Note how none of this is in terms of an ordered comparison - which makes sense, as there are certainly situations where you can easily specify equality but not a total ordering. This is all the same as Dictionary<TKey, TValue>, basically.
If you want a set w...