Does Java have dynamic variables for class members?
- by Arvanem
Hi folks,
I am wondering whether it is possible to make dynamic variables in Java. In other words, variables that change depending on my instructions.
FYI, I am making a trading program. A given merchant will have an array of items for sale for various prices.
The dynamism I am calling for comes in because each category of items for sale has its own properties. For example, a book item has two properties: int pages, and boolean hardCover. In contrast, a bookmark item has one property, String pattern.
Here are skeleton snippets of code so you can see what I am trying to do:
public class Merchants extends /* certain parent class */ {
// only 10 items for sale to begin with
Stock[] itemsForSale = new Stock[10];
// Array holding Merchants
public static Merchants[] merchantsArray = new Merchants[maxArrayLength];
// method to fill array of stock goes here
}
and
public class Stock {
int stockPrice;
int stockQuantity;
String stockType; // e.g. book and bookmark
// Dynamic variables here, but they should only be invoked depending on stockType
int pages;
boolean hardCover;
String pattern;
}
