Pre-lab Quiz

1. Write the code for the following function:

   

2. Complete the following truth table

   a	b	a || b	!(a || b)	!a && !b
   T	T
   T	F
   F	T
   F	F

Lab Instructions

This lab computes an electric bill based on a graduated scale

Getting Started

3. Create a project called ElectricBill

4. Import the files from Lab 7 Ebill

Assignment

In your EBill class, write an application (e.g., you will have to create a main method) that calculates an electric bill based on kilowatt usage.

1. Read in an integer representing the number of kilowatt-hours of electricity used in a household. Program should make sure the number entered is non-negative. If the input is incorrect, the program should display an appropriate message and exit (System.exit())

2. An electric bill is made up of two costs: a generation cost and a transmission cost. The amount to charge is based on the following table:

Range	Customer Class	Generation	Transmission
< 250 kilowatts	Bronze	Base + (0.04 per Kw)	0.02 per Kw
Between 250 and 1000 kilowatts	Silver	0.04 per Kw	$0.02 per kW
1000 kW or greater	Gold	0.02 per Kw	$0.01 per kW

The Base is $10

3. The program will print the separate costs, the total cost, and the customer’s class.

Wrap-up

1. Turn in your source code and grading sheet.

Test