Q3 Answer question Q3(a) - Q3(h) based on the information given in Figure Q3. A building surveyor has assigned you to write an application that calculates the total labour cost of building a cylinder water tank for an office building. To calculate the labour cost, you multiply the volume of the tank ( x radius x height) by the price per cubic metre of tank. For example, the volume of tank with 10 metres radius and 15 metres height is 4,710 cubic metres. To build the tank with labour cost of RM20 per cubic metre would result in total labour cost of RM94,200.00 (20.00x4,710). First, you should create a class named CylinderTank that has two fields: one for the radius of the tank and one for the height of the tank. The CylinderTank class should have a method that returns the volume of the tank. Next, you should create a WaterTank class that has a CylinderTank object as a field. It should also have a field for the cost of the labour per cubic metre. The WaterTank class should have a method called findTotalLabour Cost () that returns the total labour cost for building the tank. The following diagram shows possible class design and depicts the relationship between the WaterTank and Cylinder Tank classes. WaterTank -tankSize: CylinderTank -labourCost: double +WaterTank (tS: CylinderTank, cost: double) +findTotalLabour Cost (): double +toString(): String -radius: double -height: double CylinderTank +CylinderTank (rad: double, h: double) +getRadius (): double +getHeight (): double +getVolume (): double +toString(): String
Q3 Answer question Q3(a) - Q3(h) based on the information given in Figure Q3. A building surveyor has assigned you to write an application that calculates the total labour cost of building a cylinder water tank for an office building. To calculate the labour cost, you multiply the volume of the tank ( x radius x height) by the price per cubic metre of tank. For example, the volume of tank with 10 metres radius and 15 metres height is 4,710 cubic metres. To build the tank with labour cost of RM20 per cubic metre would result in total labour cost of RM94,200.00 (20.00x4,710). First, you should create a class named CylinderTank that has two fields: one for the radius of the tank and one for the height of the tank. The CylinderTank class should have a method that returns the volume of the tank. Next, you should create a WaterTank class that has a CylinderTank object as a field. It should also have a field for the cost of the labour per cubic metre. The WaterTank class should have a method called findTotalLabour Cost () that returns the total labour cost for building the tank. The following diagram shows possible class design and depicts the relationship between the WaterTank and Cylinder Tank classes. WaterTank -tankSize: CylinderTank -labourCost: double +WaterTank (tS: CylinderTank, cost: double) +findTotalLabour Cost (): double +toString(): String -radius: double -height: double CylinderTank +CylinderTank (rad: double, h: double) +getRadius (): double +getHeight (): double +getVolume (): double +toString(): String
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
Write complete java object oriented code
Transcribed Image Text:Q3
Answer question Q3(a) - Q3(h) based on the information given in Figure Q3.
A building surveyor has assigned you to write an application that
calculates the total labour cost of building a cylinder water tank
for an office building. To calculate the labour cost, you multiply
the volume of the tank ( x radius x height) by the price per cubic
metre of tank.
For example, the volume of tank with 10 metres radius and 15 metres
height is 4,710 cubic metres. To build the tank with labour cost of
RM20 per cubic metre would result in total labour cost of RM94,200.00
(20.00x4,710).
First, you should create a class named CylinderTank that has two
fields: one for the radius of the tank and one for the height of the
tank. The CylinderTank class should have a method that returns the
volume of the tank.
Next, you should create a WaterTank class that has a CylinderTank
object as a field. It should also have a field for the cost of the
labour per cubic metre. The WaterTank class should have a method
called findTotalLabour Cost () that returns the total labour cost for
building the tank. The following diagram shows possible class design
and depicts the relationship between the WaterTank and Cylinder Tank
classes.
WaterTank
-tankSize: Cylinder Tank
-labourCost: double
+WaterTank (tS: CylinderTank, cost: double)
+findTotalLabour Cost (): double
+toString(): String
-radius: double
-height: double
CylinderTank
+CylinderTank (rad: double, h: double)
+getRadius (): double
+getHeight (): double
+getVolume (): double
+toString(): String
Figure Q3
Transcribed Image Text:(a)
(b)
(c)
(d)
(e)
(h)
Declare data field(s) for CylinderTank.
Write a constructor with argument(s) for CylinderTank.
Write getRadius () method.
Write get Height () method.
Write getVolume () method. Assume that the value of is equal to 3.14.
Declare data field(s) for WaterTank.
Write a constructor with argument(s) for water Tank.
Write findTotal Labour Cost () method.
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