# how to get start at this question

• June 6th, 2012, 12:48 AM
sf1213
how to get start at this question
hi,

Im new to java programming,i have a question to do but im totally confuse on how to start writing the code @@,i need some help from u guys,can anyone give me an idea on what should i start at the coding

You are required to write an application called Customer Billing System. This system will calculate water usage charges for a month that has been imposed by Syarikat Air Berhad. This system will categorise users into residential users and industrial users and calculate the charges based on data entered by the user. Data needed are the type of customer (Residential or Industrial), past meter reading and current meter reading.

Given the charge rate as follows:

For Residential:
0 – 15 m3 : RM 0.82 every m3
15.1 – 40 m3 : RM 0.65 every m3
40.1 m3 and above : RM 0.42 every m3
Minimum charge is RM 5.00

For Industrial:
0 m3 and above : RM 1.47 every m3
Minimum charge is RM15.00

Instruction:
The above application must be able to hold information for up to 5 customers. Use an array and repetition structure to store information about users such as type of customer, past meter reading, current meter reading and charges. Write a structured Java program to develop the above system by following the steps below:

a) Prompt the user to input the type of customer, past meter reading and current meter reading. Next, get the difference between current meter reading and past meter reading.
b) Separate them as either R/r for Residential or I/i for Industrial. You can use any one of the two selection structures.
c) Calculate the charges based on rates given above. If there is no water consumption, the minimum charge will be imposed. You can use any one of the two selection structures.
d) Display information about the type of customer, past meter reading, current meter reading and charges for each customer. Print the information in table format.
• June 6th, 2012, 06:46 AM
Norm
Re: how to get start at this question
First make a design for the program by listing the steps it needs to do to solve the problem. Then write the code for each step, compile it and test it. When the code works, move to the next step in the list.
If you have problems with coding any of the steps, post a description of the step and the code you are having problems with.
If you have any specific java programming questions, ask them.