If Hand is self defined abstract class , then it implements itself as template? it doesn’t make too sense. what’s your take on the above declaration
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If Hand is self defined abstract class , then it implements itself as template? it doesn’t make too sense. what’s your take on the above declaration
From docs.oracle.com:
“It is possible, however, to define a class that does not implement all of the interface methods, provided that the class is declared to be abstract.”
The declaration you have only names two interfaces: Comparable, and Serializable. Since Hand is an abstract class, it doesn’t have to actually implement those interfaces, but any non-abstract class that extends Hand must do so.
The page: http://docs.oracle.com/javase/tutorial/java/IandI/abstract.html has more good info/explanation.