Question

The process of definning a method in subclass having same name and type signature as a method

Answer 1

To disallow amethod from being overridden, specify final as a modifier at the start of its declaration

Answer 2

Answer:

Petroleum refining processes are the chemical engineering processes and other facilities used in petroleum refineries to transform crude oil into useful products such as liquefied petroleum gas, gasoline or petrol, kerosene, jet fuel, diesel oil and fuel oils.