Title: Software Development of Electric Billing System.

Aim: To develop a software application using the C programming language for an electric billing system.

Requirements:

$1$

$.$

$$ The application should be able to generate Electric bill for all the customers individually.

$2$

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$$ It should be possible to print the electric bill for a specific customer upon request.

$3$

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$$ It has to generate a monthly report also.

$4$

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$$ The data should be stored in three files in a secondary storage device;

a

$)$

$$ The customer details such as Name and their postal address along with electric meter number.

b

$)$

$$ The previous month reading along with electric meter number.

c

$)$

$$ Current month reading along with electric meter number.

$$

$5$

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$$Array of structures are to be used to store the data read from the file.

$$

$6$

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$$Dynamic memory allocation has to be used to allocate memory for the array of structures.

$$

$7$

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$$It should be menu driven and user

$-$

friendly.

$$

$8$

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$$User

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defined functions need to be used wherever possible to reduce the complexity of the program

$$ with the introduction of modular structure.

$$

$9$

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$$Tariff Rates given in the table

$1$

$$should be used for the calculation.$---------------$

TOTAL : RM $68\mathrm{.}40----------------$

Sample Data file: Customer Details

Electric Meter

Number Customer

Name Door Number Street Name Area City Postal Code

$10001$ LIM $102$ Jalan Kenanga$-1$ Taman Kenanga, Melaka $75200$

$10002$ NOOR $95$ Jalan Ayer$-1$ Taman Ayer Melaka $75450$

$10003$ RAJA $25$ Jalan Perak$-1$ Taman Perak Melaka $75100$

$......................................................................$

Sample Data file: Previous month reading

Electric Meter

Number Reading

$100015000$

$100026050$

$100031000$

$...............$

Sample Data file: Current month reading

Electric Meter

Number Reading

$100015100$

$100026250$

$100031010$

$...............$