Java does not support "multiple inheritance" (a class can ... You may not declare methods as private or protected in an interface. Abstract Modifier: Since all methods are implicitly abstract it is ...

In later version of Java Interfaces always contained only ... and allow to put modifiers in method like public, protected, default. We can also define the non abstract method but in case of interface ...

Abstract: Access modifiers allow Java developers to define package and class interfaces tailored for different groups of clients. According to the principles of information hiding and encapsulation, ...