Interfaces in JAVA| What is interface? | Core Java interview questions| Java Beam
Multiple inheritance is not allowed in java for classes and a class can only extend one parent
class. Interfaces provide a form of multiple inheritance. Interfaces are not classes, They are 100% abstract.
however an interface can extend more than one parent interface.
Interfaces provide a form of multiple inheritance. A class can extend only one other class.
Interfaces are limited to public methods and constants with no implementation.
If a interface doesn't provide any abstract methods, then it is called tagged interface or marker interface
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