[Octave-bug-tracker] [bug #48790] javaArray('double',1)

[Andrew Janke]

Follow-up Comment #6, bug #48790 (project octave):

Hi folks.

There might be a bit of confusion here about the exact Java types we're
dealing with.

In Java:

* java.lang.Double is not the same as the primitive double type: it is an
object wrapper for it
* java.lang.Double.class is the class of the object wrapper
* java.lang.Double.TYPE is the class of the corresponding primitive type

Matlab does not auto-convert the object wrapper types like java.lang.Double or
java.lang.Double[]; it merely has a convenience display function that makes
them look like primitive types.


>> java.lang.Double(42)
ans =
42.0
>> class(ans)
ans =
    'java.lang.Double'
>> java.lang.Double.class
ans =
    'java.lang.Double'
>> java.lang.Double.TYPE
ans =
double
>> class(ans)
ans =
    'java.lang.Class'


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