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How do you test to see if a double is equal to NaN?
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Joren, he's relying on autoboxing (double getting converted to Double by the compiler/runtime); new feature from 1.5 onwards. Little risk going this direction; going from Double to double creates risk of NullPointerExceptions.
– M1EK
Se...
Loop through all the files with a specific extension
...aste it and find it not working. A perfect example would be someone who is converting all ".jpg" files to ".png" before carrying out a crucial function
– puk
Jul 7 '17 at 19:50
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RuntimeWarning: DateTimeField received a naive datetime
...e your naive datetime objects timezone aware and avoid those warnings.
It converts naive datetime object (without timezone info) to the one that has timezone info (using timezone specified in your django settings if you don't specify it explicitly as a second argument):
import datetime
from django...
How to set thousands separator in Java?
...ngSeparator(' ');
formatter.setDecimalFormatSymbols(symbols);
System.out.println(formatter.format(bd.longValue()));
According to the JavaDoc, the cast in the first line should be save for most locales.
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How to close activity and go back to previous activity in android
...y one then when starting activity two you need:
startActivityForResults(myIntent, MY_REQUEST_CODE);
Inside your called activity you can then get the Intent from the onCreate() parameter or used
getIntent();
To set return a result to activity one then in activity two do
setResult(Activity.RESU...
How to get the mysql table columns data type?
... I personally tried this and would agree this answer does do what the OP intended to. On a side note a bit weird on how "table_name" is small caps even in the manual, should it not be UPPER? (Not that it makes a difference)
– chutsu
Jun 13 '12 at 12:59
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How to select distinct rows in a datatable and store into an array
... with Linq to DataSet: table.AsEnumerable().GroupBy(row => row.Field<int>("mo")).Select(group => group.First()).CopyToDataTable()
– Thomas Levesque
Dec 5 '13 at 9:39
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Pandas: Setting no. of max rows
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You shouldn't be converting it to string. It's not what Andy asked for.
– simtim
Feb 22 '17 at 9:52
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Is System.nanoTime() completely useless?
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This answer was written in 2011 from the point of view of what the Sun JDK of the time running on operating systems of the time actually did. That was a long time ago! leventov's answer offers a more up-to-date perspective.
That post is wrong, and nanoTime is safe. T...
Determine which JAR file a class is from
...source('/' + klass.getName().replace('.', '/') + ".class");
As notnoop pointed out klass.getResource() method returns the location of the class file itself. For example:
jar:file:/jdk/jre/lib/rt.jar!/java/lang/String.class
file:/projects/classes/pkg/MyClass$1.class
The getProtectionDomain().ge...