Object programming - PowerPoint PPT Presentation

paul
object programming l.
Skip this Video
Loading SlideShow in 5 Seconds..
Object programming PowerPoint Presentation
Download Presentation
Object programming

play fullscreen
1 / 5
Download Presentation
Object programming
333 Views
Download Presentation

Object programming

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. Object programming Method Properties

  2. top.hidden • cart.html with the following functions: • 1.addcart(desc, price) • 2.additem(desc, price, itemcnt) • 3.viewcart() • 4.prtitem(where) • 5.delitem(itemcnt) • jackson.html with the following buttons: • Place order • View order top.main Jackson electronic example

  3. Shopping cart logic • cart.html is always accessible in top.hidden frame • jackson.html is displayed in top.main frame • When the [Place Order] button is clicked, the addcart function is called, passing along the product description and price from the order • The addcart function will call the additem function to store the description, price, and current count of the item onto the shopping cart  an alert message is issued as confirmation that the additem function is successfully executed  • Steps 3 and 4 will be repeated until the user clicks the [View Order] button which triggers the viewcart function • The viewcart function will display the content of the cart object in top.main frame as a table by calling the display method of the cart object  prtitem function with a delitem function link

  4. top.hidden cart.html with the following functions: 1.additem(desc, price, itemcnt) 2.delitem(itemcnt) 3.addcart(desc, price) 4.prtitem(where) 5.viewcart() banner.html with image map: banner.jpg brkfst.html lunch.html dinner.html top.main Kelsey’s Diner example

  5. Shopping cart logic • cart.html is always accessible in top.hidden frame • Assume brkfst.html is displayed in top.main frame • user selected an item off the menu by clicking on the Orderlink which triggers the addcart function with its description and price • The addcart function will call the additem function to store the description, price, and current count of the item onto the shopping cart  an alert message is issued as confirmation that the additem function is successfully executed  • Steps 3 and 4 will be repeated until the user clicks the View Order link which triggers the viewcart function • The viewcart function will display the content of the cart object in top.main frame as a table by calling the display method of the cart object  prtitem function with a delitem function link