Engineering, 27.11.2019 20:31, destinydiamond6887

You are designing a system to run a bookstore. revenue for the store comes from two distinct services: customers can purchase books, or bring their books in for rebinding. you are considering making a separate class for each service, both of which would be subclasses of a general "sale item" class. what are the likely benefits of such an approach? are there any possible arguments against using inheritance in this case? be sure to specify what factors could influence your decision.

Answers: 1

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 18:10, meganwintergirl

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

Answers: 3

continue

Engineering, 04.07.2019 19:10, jennymares

Abarometer contains mercury with a density of 13600 kg/m3. atmospheric conditions are 95.8 kpa and 20 °c at 20 °c, the vapor pressure of the mercury is 0.000173 kpa. the column of mercury will rise to a height of most nearly. select one: a)- 0.38 m b)- 0.82 m c)- 0.48 m d)- 0.72 m

Answers: 1

continue

Engineering, 04.07.2019 19:10, rayne40

A)-in the process of engineering design, explain the contribution of material selection. b)- explain the procedure of synthesis as is employed in engineering design. c)- is there any relationship between ergonomics and engineering design? explain. d)- safety consideration in engineering design includes human, product and the enviroment . explain how safety will be incorporated into the design?

Answers: 3

continue

Engineering, 04.07.2019 19:10, moneyyfletcher

The air in an automobile tire with a volume of 0.015 m3 is at 32°c and 140 kpa gage. determine the amount of air that must be added to raise the pressure to the recommended value of 206 kpa gage. assume the atmospheric pressure to be 128 kpa and the temperature and the volume to remain constant.[r-0.287 kj/kgk]

Answers: 3

continue

Do you know the correct answer?

You are designing a system to run a bookstore. revenue for the store comes from two distinct servic...