Programming Exercise 3-1
Programming Exercise 5-8
# Global constants for paint job estimator
FEET_PER_GALLON = 112
LABOR_HOURS = 8
LABOR_CHARGE = 35
# main module
def main():
# Local variables
pricePaint = 0.0
feetWall = 0.0
gallonPaint = 0
hourLabor = 0
costPaint = 0.0
costLabor = 0.0
# Get wall space
feetWall = float(input(‘Enter wall space in square feet: ‘))
# Get paint price
pricePaint = float(input(‘Enter paint price per gallon: ‘))
# Calculate gallons of paint
gallonPaint = int(feetWall / FEET_PER_GALLON) + 1
# Calculate labor hours
hourLabor = gallonPaint * LABOR_HOURS
# Calculate labor charge
costLabor = hourLabor * LABOR_CHARGE
# Calculate paint cost
costPaint = gallonPaint * pricePaint
# Print cost estimate
showCostEstimate(gallonPaint, hourLabor, costPaint, costLabor)
# The showCostEstimate function accepts gallonPaint, hourLabor,
# costPaint, costLabor as arguments and displays the corresponding
# data.
def showCostEstimate(gallonPaint, hourLabor, costPaint, costLabor):
# Local variable
totalCost = 0.0
# Calculate total cost
totalCost = costPaint + costLabor
# Display results
print (‘Gallons of paint: ‘, gallonPaint)
print (‘Hours of labor: ‘, hourLabor)
print (‘Paint charges: $’ , \
format(costPaint, ‘,.2f’), sep=”)
print (‘Labor charges: $’ , \
format(costLabor, ‘,.2f’), sep=”)
print (‘Total cost: $’ , \
format(totalCost, ‘,.2f’), sep=”)
# Call the main function.
main()
main()
getSpace
(feetWall)
setHours
(gallonPaint, hourLabor)
End
Declare
pricePaint, feetWall, gallonPaint, hourLabor,
costPaint, costLabor
getSpace(Ref
inputSpace)
Return
Display “enter
wall space in
square feet”
Input
inputSpace
showIncome
(gallonPaint, hourLabor,
costPaint, costLabor)
Return
Display “gallons of paint: “,
gallonPaint
Display “hours of labor: “,
hourLabor
Display “paint charges: $”,
costPaint
Display “labor charges: $”,
costLabor
Display “Total Cost: $”, totalCost
Global Constant Real
FEET_PER_GALLON
LABOR_HOURS
LABOR_CHARGE
showIncome(gallon
Paint, hourLabor,
costPaint, costLabor)
setHours
(gallonPaint, hourLabor)
Return
Set hourLabor = gallonPaint *
LABOR_HOURS
getPrice
(pricePaint)
setPaint
(feetWall,
gallonPaint)
setLaborCharge
(hourLabor, costLabor)
setPaintCharge
(gallonPaint, costPaint)
getPrice
(Ref inputPrice)
Return
Display “enter
paint price per
gallon”
Input
inputPrice
setPaint
(feetWall, gallonPaint)
Return
Set gallonPaint =
feetWall /
FEET_PER_GALLON
setLaborCharge
(hourLabor, costLabor)
Return
costLabor = hourLabor *
LABOR_CHARGE
setPaintCharg
e(gallonPaint, pricePaint,
Ref costPaint)
Return
Set costPaint =
gallonPaint * pricePaint
Declare
totalCost
Set totalCost =
costPaint + costLabor