Java   View all facts   Glossary   Help | 
| syntactic unit > access unit > variable > variable declared as a non-primitive data type > variable whose type is an abstract class | 
| variable whose type is an abstract class comparison table | ||
| Subject | is a kind of | contain | 
|---|---|---|
| variable declared as a non-primitive data type | variable | an instance of a class | 
| variable whose type is an abstract class | variable declared as a non-primitive data type | an instance of any subclass of the abstract class |