start
Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
|
start [2011/05/10 11:23] kel |
start [2013/04/27 12:35] taochang |
||
|---|---|---|---|
| Line 1: | Line 1: | ||
| - | Multiple Choices Algorithm - by Mark Kelly | + | Every day, many people waste tons of energy, while using many things in their home. Whether it's through simple appliances or water usage, people waste energy at home, rather than using green energy. Here is a bit of advice that will help you make use of green energy in your own home.[[http://enigmapedia.com/index.php?title=Ways_You_Can_Use_Green_Energy_To_Power_Your_Home|Comflor80]] |
| - | Another in the Fun with Algorithms series | + | A very easy and cheap way to save on your high energy bills is to try installing some low flow shower heads and faucets. Switching from the standard, 2.5 gallon/minute shower heads, to the low flow 1.5 gallon/minute ones, can help you save a lot with your hot water energy costs. |
| - | Stuff Pty Ltd sells stuff. The unit cost of the stuff varies according to the quantity ordered. Customers can order any number of items. Stuff Pty Ltd use this scale: | + | In order to save extra energy around the house, be sure to set your electronics to a power-saving mode when not using them. A power-saving mode will reduce the amount of energy spent by the device. This way, you can save energy and cut down the cost of the electric bill. |
| - | 1-9 items = $100 each | + | |
| - | 10-19 items = $97 each | + | |
| - | 20-29 items = $92 each | + | |
| - | 30-39 items = $88 each | + | |
| - | 40-49 items = $85 each | + | |
| - | 50 or more = $82 each | + | |
| - | Task: using pseudocode, create an algorithm to calculate the unit cost of the items at different quantities. Then calculate a total cost with 10% GST added. | + | [[http://saintpaulrfp.com/story.php?title=comflor80-in-your-design|comflor 80 corus]] If you are trying to save on your electricity bill, try to use your ceiling fan more in the summer. A ceiling fan can help to make any room feel about 10 degrees cooler, and it costs much less to run than an air conditioner does. You will be saving money and also using less electricity, meaning you're doing something great for the environment. |
| - | Convert the pseudocode into code. | + | |
| - | Create test data to fully test all aspects of the solution’s functionality. | + | |
| - | Note: Input data need not be validated, and the interface can be very basic. | + | |
| - | + | ||
| - | Sample VB2010 solution | + | |
| - | Public Class Form1 | + | |
| - | ' Multiple options algorithm | + | |
| - | ' by M.Kelly 10 May 2011 | + | |
| - | ' Version 1.0 | + | |
| - | ' To Do Next: nil | + | |
| - | Private Sub btnCalc_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalc.Click | + | Simply cleaning or changing the filter on your furnace can cut electricity costs significantly. Too much dirt or dust built up in the vents can make more heat necessary to warm the house. It only takes a short amount of time to clean these, and you will notice the change in your bills! |
| - | Dim Qty As Integer = CInt(txtQty.Text) | + | |
| - | Dim inctax As Single = 0 'declare and initialise in one hit | + | |
| - | ' deliberately lacks validation of qty | + | |
| - | Select Case Qty | + | |
| - | Case 1 To 9 | + | |
| - | lblCostper.Text = 100 | + | |
| - | Case 10 To 19 | + | |
| - | lblCostper.Text = 97 | + | |
| - | Case 20 To 29 | + | |
| - | lblCostper.Text = 92 | + | |
| - | Case 30 To 39 | + | |
| - | lblCostper.Text = 88 | + | |
| - | Case 40 To 49 | + | |
| - | lblCostper.Text = 85 | + | |
| - | Case Else | + | |
| - | lblCostper.Text = 82 | + | |
| - | End Select | + | |
| - | lblSubtotal.Text = Qty * CInt(lblCostper.Text) 'using labels for output | + | A significant green energy initiative is to is having a professional do a home energy audit. These professionals will assess your home and find areas where you can save money and conserve energy. Some power companies even offer this service for free to help reduce the impact of their customers on their energy supply. |
| - | 'inctax is here as a sample use of variables for calculations and | + | [[http://wiki.gdite.mx/index.php?title=Green_Energy_Tips_That_Can_Save_You_A_Fortune!|comflor 80]] If you have a tank-style water heater that you aren't prepared to replace yet, conserve electricity or natural gas by lowering its thermostat. By changing the thermostat from the factory-set 140 degrees to 120 degrees, the heater requires 6 to 10 percent less energy to keep your water hot. |
| - | 'using labels just for display purposes. | + | |
| - | 'Using variables mean less converting back & forth between text and number. | + | |
| - | inctax = CInt(lblSubtotal.Text) * 1.1 'add GST | + | If you are planning to go green in your home, you may want to consider contacting your utility provider to learn about your options. They may have some great suggestions for you look into. If they do not have the options for you, they can direct you to where you can find them. |
| - | 'The final total is nicely formatted currency just to show how it's done. | + | |
| - | 'Nice formatting is not needed in U3O2. | + | |
| - | lblIncTax.Text = Format(inctax, "$#,####.#0") | + | |
| - | End Sub | + | |
| - | + | If your exhaust fans are more than five years old, consider replacing them with newer more efficient models. Each year you should examine each exhaust fan in your home for damage and replace the filter. A damaged exhaust fan uses more energy and changing the filter allows the fan to work more efficiently. | |
| - | Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click | + | |
| - | End | + | |
| - | End Sub | + | |
| - | End Class | + | [[http://www.youdoze.com/story.php?title=comflor80-for-your-construction|Comflor80]] Cut down on electricity by hanging at least some of your clothes outdoors to dry. The sun and wind can dry them quickly and your clothes will smell fresher when you bring them in. Bedding and towels can make your dryer run a long time and they are easy to hang outdoors. |
| - | + | Too often, the water heater allows water to reach a scalding temperature when trying to take a shower. Try turning the maximum heat on the water heater down by twenty degrees, and you will see a definite decrease in electricity costs. Tankless water heaters are another green energy option for anyone. | |
| - | Sample output | + | As you have read, going greener in the home is not as difficult as some may think and in the long run, produces valuable savings. Considering that we have but one environment to sustain us, we must see to its protection and preservation. Hopefully, this article has provided you with enough information and motivation to begin your green endeavors today! |
| - | Perhaps more decorative that it needs to be for U3O2, but I can’t abide messy interfaces. | + | |
| - | + | ||
| - | <can't insert image!> | + | |
| - | + | ||
| - | + | ||
| - | + | ||
| - | --------------------------------------------------------------------------------------------- | + | |
Page Tools
Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Noncommercial-Share Alike 4.0 International
