Homework Help: computers

Posted by alhaji on Monday, September 10, 2012 at 11:47pm.

Write a program that will emulate a cash register. Ask the user to input the price of three items. Get a subtotal. Determine the tax (6% ) of the subtotal. Find the total amount of the sale subtotal plus tax. Display the price of each item, subtotal amount, tax amount and final amount.

programming - Writeacher, Tuesday, September 11, 2012 at 7:35am
.
computers - Steve, Tuesday, September 11, 2012 at 10:44am
maybe you can work with this as a model

@p = ();
$st = 0;

for ($i=1 ; $i <= 3 ; $i++) {
print "Price of item #$i: ";
$v = <STDIN>; chomp $v;
$p[$i] = $v;
$st += $v;
}
$tax = $st * 0.06;
$total = $st + $tax;
print "\nItem Price\n";
for ($i=1 ; $i <= 3 ; $i++) {
printf "%4d %12.2f\n",$i,$p[$i];
}
printf "%s\n","-"x17;
printf "subtotal: %7.2f\ntax: %12.2f\ntotal: %10.2f\n",$st,$tax,$total

sample run:

perl jiskha1.pl
Price of item #1: 1763.2
Price of item #2: .85
Price of item #3: 12

Item Price
1 1763.20
2 0.85
3 12.00
-----------------
subtotal: 1776.05
tax: 106.56
total: 1882.61

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