Electricity Bill

• The information needed to store in a file: name, address, account number, current meter reading, past meter reading, usage, total.
• Functions that need to be developed:
  • Calculate electricity bill
  • Add record into array of object
  • Display all records
  • Search – Search by name or account number. Then, display only one record
  • Delete – delete through account number
  • Edit a record
• Use an array of object
• Use a menu concept like ATM machine
• Element:
  • Input Output
  • Selection
  • Looping
  • Array of Object
  • Object Oriented
  • System must be user friendly (eg. Display message)

Rate:

Category Rate
0 – 200 first unit RM 0.218
201 – 300 RM 0.334
301 – 400 RM 0.400
> 400 RM 0.402

Account number: xxxx
Name: xxx
Address: xxxx
Current meter reading : 1260
Past meter reading : 1130
Usage: 130
Amount: 19.00

Details:
Ex: Usage = 130
130 X 0.218= 28.34
Total = 28.34

Details:
Ex: Usage = 250
200 X 0.218 = 43.60
50 X 0.334 = 16.7
Total = 60.30

Details:
Ex: Usage = 378
200 X 0.218 = 43.60
100 X 0.334 = 33.4
78 X 0.400 = 31.20
Total = 108.20