I am trying to copy variables of the same class type
FUNCTION[] funcs;
FUNCTION[] orphelines;
as follows
orphelines[nb_orphelines]=funcs[numero];
Is = right for this task? I get a NullPointer error....
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Then either `orphelines` or `funcs` (or both) is `null`. But only if you post a MCVE someone can give a definite answer. – Ctx Apr 29 '16 at 10:14
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Sure, orphelines[nb_orphelines] is null. That's the idea: to pass funcs[numero] to orphelines[nb_orphelines], taking into account that FUNCTION[] holds inner functions. – Hans Apr 29 '16 at 10:25
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No, `orphelines` is `null`, not `orphelines[nb_orphelines]`. In other words, there is no array at all. Somewhere you need to create the array, for example : `orphelines = new orphelines[100];` – Jesper Apr 29 '16 at 10:27
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You have to make a distinction between the array (as a container) and the elements stored in it. You must first create _the container_ (i.e. by calling `orphelines = new orphelines[funcs.length];` or similar). Then you can start populating it. – Ctx Apr 29 '16 at 10:28