.Write the definition of classes and interfaces in the diagram below using following details: a) Interface Vehicle has a method speed(). b) Override the method speed() in all subclasses. c) Define a non-abstract method increaseSpeed() in Car class. -abstract- Car interface- Vehicle Bus Truck

Database System Concepts
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Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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1. Write the definition of classes and interfaces in the diagram below using following details:
a) Interface Vehicle has a method speed().
b) Override the method speed() in all subclasses.
c) Define a non-abstract method increaseSpeed()) in Car class.
«abstract->
Car
«interface->
Vehicle
Bus
Truck
Transcribed Image Text:1. Write the definition of classes and interfaces in the diagram below using following details: a) Interface Vehicle has a method speed(). b) Override the method speed() in all subclasses. c) Define a non-abstract method increaseSpeed()) in Car class. «abstract-> Car «interface-> Vehicle Bus Truck
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