Use static methods in an interface

• JDK 8 introduced the possibility of defining static methods in interfaces.

• Static methods in interfaces can be called independently of any object, similar to static methods in classes.

• An implementation or interface instance is not required to call a static method.

• The syntax for calling a static method of an interface is: InterfaceName.StaticMethodName.

• The operation is similar to static methods of a class.

• Example: in the MyIF interface, the static getUniversalID() method was added, returning the value zero.

• The getUniversalID() method can be called like this: int uID = MyIF.getUniversalID().

• An implementation or instance of MyIF is not required to call getUniversalID(), as it is a static method.

• Static interface methods are not inherited by implementing classes or subinterfaces.

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