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How to set a JVM TimeZone Properly
...perations be explicit about which time zone you want, and you will always know what you get independently of the JVM setting. Example:
System.out.println(ZonedDateTime.now(ZoneId.of("Asia/Dushanbe")));
Example output:
2018-10-11T14:59:16.742020+05:00[Asia/Dushanbe]
System.setProperty
F...
Where is Xcode's build folder?
...
~/Library/Developer/Xcode/DerivedData is now the default.
You can set the prefs in Xcode to allow projects to specify their build directories.
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How to Define Callbacks in Android?
...{
Log.v("","EVENT FIRED");
}
});
If you want to know more about communication (callbacks) between fragments see here:
http://developer.android.com/guide/components/fragments.html#CommunicatingWithActivity
...
Parcelable encountered IOException writing serializable object getactivity()
... Stack trace...Found One of the object in my class was Not Serialized. and Now It is working. Caused by: java.io.NotSerializableException:
– VJ Vishal Jogiya
Aug 16 '17 at 11:35
...
Maven Could not resolve dependencies, artifacts could not be resolved
...ore. And he shared the repository entries, some are like your finding, and now it worked fine now .. Thank you for your time ! And if i may know, what keywords do you use to find out what repositories to use ? I tried googling also yesterday, but i ended up miserable. haha
– be...
Uses for Optional
Having been using Java 8 now for 6+ months or so, I'm pretty happy with the new API changes. One area I'm still not confident in is when to use Optional . I seem to swing between wanting to use it everywhere something may be null , and nowhere at all.
...
PHP array_filter with arguments
...ThanFilter(12), 'isLower'));
print_r($matches);
As a sidenote, you can now replace LowerThanFilter with a more generic NumericComparisonFilter with methods like isLower, isGreater, isEqual etc. Just a thought — and a demo...
...
Many-to-many relationship with the same model in rails?
...column names are non-standard as well (not post_id), to prevent conflict.
Now in your model, you simply need to tell Rails about these couple of non-standard things. It will look as follows:
class Post < ActiveRecord::Base
has_and_belongs_to_many(:posts,
:join_table => "post_connection...
Is there a way to check if a file is in use?
...haracters than try {} finally { obj.Dispose() }. You'll also find that you now need to declare your object reference outside the using statement, which is more typing. If you have a explicit interface you'd also have to cast. Finally you want to dispose ASAP, and the finally logic may have UI or an...
What is the difference between JOIN and UNION?
...n one table to look up column values by using the primary key in another.
Now compare the above depiction with that of a union. In a union each row within the result is from one table OR the other. In a union, columns aren’t combined to create results, rows are combined.
Both joins and union...