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seen Jun 22 at 20:38

Nov
23
comment null values vs “empty” singleton for optional fields
I'm not sure, but I think you can call Option's isEmpty from Java to check if there's any value (the equivalent to if (object.field() == null) { ... }). But I haven't tried this.
Nov
23
awarded  Teacher
Nov
23
answered null values vs “empty” singleton for optional fields
Feb
26
awarded  Supporter