230-Examples/changeLab.html at master · twopiharris/230-Examples · GitHub

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html lang="EN" dir="ltr" xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <meta http-equiv="content-type" content="text/xml; charset=utf-8" />
    <title>Change Maker Lab</title>
    <link rel = "stylesheet"
          type = "text/css"
          href = "../ajhStandard.css" />
    <style type = "text/css">
      dt {
        float: left;
        width: 5em;
        clear: left;
        margin-left: 35%;
      }
      pre {
        background-color: white;
        border: 3px double black;
        width: 80%;
        margin-left: auto;
        margin-right: auto;
        padding-left: 1em;
      }
    </style>

  </head>

  <body>
    <h1>Change Maker Lab</h1>
    <div class = "singlePanel">
      <h2>Objectives</h2>
      <p>
        Create a program that calculates change after a purpose. This
        will be a <em>sequential</em> algorithm, which is one of the
        simplest programming patterns. Your solution requires no
        branching or looping. Simply write a series of statements that
        will execute in order.
      </p>

      <h2>Discussion</h2>
      <p>
        The program should ask for a purchase price and the amount of
        cash tendered. It should then determine how many of the
        following denomininations should be returned:
      </p>
      <dl>
        <dt>penny</dt>
        <dd>$0.01</dd>

        <dt>nickel</dt>
        <dd>$0.05</dd>

        <dt>dime</dt>
        <dd>$0.10</dd>

        <dt>quarter</dt>
        <dd>$0.25</dd>

        <dt>dollar</dt>
        <dd>$1.00</dd>

        <dt>five</dt>
        <dd>$5.00</dd>

        <dt>ten</dt>
        <dd>$10.00</dd>

        <dt>twenty</dt>
        <dd>$20.00</dd>
      </dl>

    <h2>Sample Run</h2>
    <pre>
Price of the item:
21.37
Cash tendered:
50.00
Change: 28.63
Change Left: 2863
twenties: 1
tens: 0
fives: 1
ones: 3
quarters: 2
dimes: 1
nickles: 0
pennies: 3
    </pre>

    <h2>Notes</h2>
    <p>
      This program is easier if you consider the following ideas:
    </p>

    <ul>
      <li>You'll have to figure out how much of each amount is required</li>
      <li>You'll need to know what's left after you've accounted for each
          denomination</li>
      <li>Look up the <em>modulus</em> operator</li>
      <li>Modulus works better with integers</li>
      <li>It may be better to work in pennies rather than dollars</li>
    </ul>
    </div>
  </body>
</html>