On 17/01/2018 08:41, Semyon Sadetsky wrote:
I already listed a methods which use null as an absent of the value.
And current methods were implemented with this intention.
But JList is fully usable without them.
No because getSelectedValue() will return null if no elements is selected.
as well as any pointer that JList couldn't contain null.
There are no references to null in the javadoc which means that null
is unsupported. By default the null value is unsupported, and it can
be considered as supported only if spec accept that.
That is a good argument that proves that null is not considered as a
special value.
What argument? There are no description that null is supported, but
there are a description that null is used in somecases like
getSelectedValue().
--
Best regards, Sergey.
