This week's book giveaway is in the OCAJP forum.
We're giving away four copies of OCA Java SE 8 Programmer I Study Guide 1Z0-808 and have Jeanne Boyarsky & Scott Selikoff on-line!
See this thread for details.
The moose likes Beginning Java and the fly likes ArrayList Problem Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of OCA Java SE 8 Programmer I Study Guide 1Z0-808 this week in the OCAJP forum!
JavaRanch » Java Forums » Java » Beginning Java
Bookmark "ArrayList Problem" Watch "ArrayList Problem" New topic

ArrayList Problem

Chris G Johnson

Joined: Nov 20, 2004
Posts: 23

I am trying to create a program that makes a list of food items in an array list that can be used to create food orders. I have started on the arraylist of food items but I don't understand how to calculate the price and how to store the orders. This is the code I have so far which I know is pretty pathetic at the minute:-

Thanks to anyone who can help!
Randall Julian

Joined: Nov 21, 2004
Posts: 14
One problem here is that the add() method, as you've used it, expects an object and cannot take a primative.

This section works because String is a class and description is an object

This part fails to compile because int's are primatives not objects:

There may be other problems, but it seems like this is the first step. You can use the Integer class instead of an int to place a numerical object in an ArrayList - it seems like situations like this are what the wrapper classes are made for.
[ November 28, 2004: Message edited by: Randall Julian ]
I agree. Here's the link:
subject: ArrayList Problem