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Are static fields open for garbage collection?
...ollected for garbage.
Check out the JLS Section 12.7 Unloading of Classes and Interfaces
A class or interface may be unloaded
if and only if its defining class
loader may be reclaimed by the garbage
collector [...] Classes and interfaces
loaded by the bootstrap loader may not
be unloa...
Easy way to see saved NSUserDefaults?
...e:
<Bundle Identifier>.foo.pList
Open this up in the pList editor and browse persisted values to your heart's content.
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How to retrieve a single file from a specific revision in Git?
I have a Git repository and I'd like to see how some files looked a few months ago. I found the revision at that date; it's 27cf8e84bb88e24ae4b4b3df2b77aab91a3735d8 . I need to see what one file looks like, and also save it as a ("new") file.
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How to find difference between two Joda-Time DateTimes in minutes
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No I disagree, it's too wordy and unclear: "The minutes minutes between punch time date time" is worse than "second date milliseconds minus first date milliseconds"
– Jonathan Neufeld
Feb 19 '15 at 23:11
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Why does InetAddress.isReachable return false, when I can ping the IP address?
...ll to the bottom to see my alternative for simply testing if you're online and capable of resolving external hosts (i.e. google.com) ... Which generally seems to work on *NIX machines.
The issue
There is alot of chatter about this :
Here are other, similar questions :
Detect internet Conne...
Laravel Eloquent ORM Transactions
...is even cleaner but the drawback is that if you need to specify different handlers for different exceptions you will have to go back to try/catch technique
– OzzyTheGiant
Jun 11 at 21:50
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Twitter Bootstrap CSS affecting Google Maps
I'm using Twitter Bootstrap, and have a Google map.
11 Answers
11
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What is more efficient: Dictionary TryGetValue or ContainsKey+Item?
...y, 0);. But i think that TryGetValue is still more efficient since the get and set of the indexer property is used, isn't it?
– Tim Schmelter
Oct 1 '15 at 10:44
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How do I set the selected item in a comboBox to match my string using C#?
I have a string "test1" and my comboBox contains test1 , test2 , and test3 . How do I set the selected item to "test1"? That is, how do I match my string to one of the comboBox items?
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builder for HashMap
...tations of those factory methods are that they:
can't hold nulls as keys and/or values (if you need to store nulls take a look at other answers)
produce immutable maps
If we need mutable map (like HashMap) we can use its copy-constructor and let it copy content of map created via Map.of(..)
M...