Question

Write a program that calculates how many BTU’s of heat are delivered to a house given the number of gallons of oil burned and the efficiency of the house’s oil furnace. Assume that a barrel of oil (42 gallons) has an energy equivalent of 5,800,000 BTU. Be sure to name all constants from the problem statement. Note: You must use JOptionPane input and output dialogs boxes for input and output.

Exercise 1: What are the inputs and output for the problem specification?

Exercise 2: Develop the pseudo code for the specification above.

Answer 1

The program takes the number of gallons of oil burned and the efficiency of the oil furnace as inputs to calculate and output the BTUs of heat delivered to a house. Pseudo code is provided for step-by-step execution of the program.

Step-by-step explanation:

Exercise 1: Inputs and Outputs:

The inputs for the program are the number of gallons of oil burned and the efficiency of the house’s oil furnace. The output of the program is the number of BTUs of heat delivered to a house.

Exercise 2: Pseudo code:

1. Start
2. Display a dialog box to prompt user for the number of gallons of oil burned
3. Store input in 'gallonsOfOil'
4. Display a dialog box to prompt user for the efficiency of the oil furnace
5. Store input in 'furnaceEfficiency'
6. Calculate energy content per gallon by dividing the energy equivalent of a barrel of oil by 42 (EnergyPerGallon = 5800000 BTU / 42)
7. Calculate total energy by multiplying 'gallonsOfOil' by 'EnergyPerGallon' (TotalEnergy = gallonsOfOil * EnergyPerGallon)
8. Adjust TotalEnergy for furnace efficiency (AdjustedEnergy = TotalEnergy * furnaceEfficiency)
9. Display a dialog box to show the result of AdjustedEnergy
10. End