Hmmm... But in my main Activity, I do create a variable "me" of type Person2, and "me" is supposed to be created with a field known as "Id" of type StrRecord. So shouldn't "Id" be created at the same time as "me"? If so, then I should be able to access "me.Id".
Moreover, if I change the field "Id" of type StrRecord to be field "Id" of type String, it works fine, even though I never created the new string specifically... Finally, If you are right, I don't see how I can call "new StrRecord()" without creating a new variable which is different then the "Id" field, and it is the "Id" field that I am trying to assign... thanks, jim On Sep 26, 5:51 pm, Mark Murphy <[EMAIL PROTECTED]> wrote: > gymshoe wrote: > > But the following code fails. It fails whenever I try to assign a > > value to the "value" field or the "visibility" field. (It fails with > > either direct assignment or with creating a setter method -not > > shown.). The error code indicates a null pointer exception is thrown > > when I try to make the assignment, but I do not know why this should > > be the case, or how to fix it.... (BTW if I don't use the extra > > subClass containing two pieces of data, and just use a String type in > > the primary Class, it works fine, but that's not what I was hoping to > > do...) > > You're never creating an instance of StrRecord. You're declaring a > variable named Id that is of a StrRecord type, but you are not calling > new StrRecord() anywhere that I see. Hence, Id is null (or, technically, > could be a garbage value) and, upon usage, goes blooey. > > -- > Mark Murphy (a Commons Guy)http://commonsware.com > Warescription: All titles, revisions, & ebook formats, just $35/year --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Beginners" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~----------~----~----~----~------~----~------~--~---
