An interface may extend multiple interfaces?

yes of cause interface is use in java at the place of multiple inheritance .o as like multiple inheritance u can extends interface class to other. and another think is interface contain abstract...

No interface can't be extended it can only be implemented.Yes we can implement 2 or more interface in java using multiple interface concept

Actually, java does not support multiple inheritance. You can achieve partial multiple inheritance using interfaces but java is not like C or C++ where you can do direct multiple inheritance....

Since an interface has no implemented methods, there is nothing to extend, since you would simply get empty method headings you can't make a class by extending an interface. An interface must be...

an Interface is nothing but a contract as to how a class should behave. It just declares the behavior as empty methods and the implementing class actually writes the code that will determine the...