SupertypeIncompatibleWithSubtype

SupertypeIncompatibleWithSubtype

A variable of a supertype cannot reference an object of a subtype

A variable of a supertype can reference an object of a subtype

Java

Inheritance Subtyping Type Reference

reference variable of a given type referring to object of a subtype

Programming Language

Notional Machine

About This Site Contributors

Follow us on twitter to hear about new misconceptions.