troubleshooting Question

abstract class with all non abstract mentods

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gudii9Flag for United States of America asked on
JavaJava EEProgramming Languages-OtherProgrammingSystem Programming
6 Comments2 Solutions214 ViewsLast Modified:
Can a abstract class with all non abstract mentods? Is that is possible. I am under impression that atleast one method of abstract class should be abstract. What are advantages and practical uses of abstract methods compared to interface. I see many cases abstract class is implements a interface. Then a concrete class extends the abstract class. I wonder what is use of this pattern

interface--->abstract class(implements)--->concrete class(extends)

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