Select from a list of home appliances which includes a laundry washer or cloth washer, among other appliances

Enter the cost per kilowatt hour.

Select from a list of home appliances which includes a laundry washer or cloth washer, among other appliances.

Refrigerator
TV
Space Heater
Fan
Dryer
Oven
Enter the power needed in kilowatts (kW) for the selected appliance.
Enter the number of hours used per day for the selected appliance.
If the washer is selected, enter both the number of gallons of water used by the washer per hour and the cost per gallon.

The program should do the following:

Validate that the data entered has the correct format, and is within a reasonable range.
Calculate and display the cost for operating a home appliance as soon as the data is entered.
Create a listing area to display each of the following for each appliance entered:

Home appliance
Number of hours per day
Cost

Display and update the total cost of all appliances, as soon as a new entry is added to the listing area