[Bluej-discuss] Ex.4.38

[Davin McCall]

Hi Mike,

Think about this:  how many times does the body of the "while" loop get 
executed? (here's a hint: It will be executed while the condition 
"it.hasNext()" is true. If the stock list is initially empty, how many 
times will that be?)

Davin

Mike Stevens wrote:
>
> Hi Colleen,  I'm not getting it, am I using the right loop here?  I've 
> tried a for each loop also and have had no success.  I seems like when 
> it hits my if loop it just pass's it on by and does nothing.  I looked 
> at the rest of the exercises and have tried everything I can think of 
> and it just won't add item in.  I did create another method to add in 
> just to test and the else worked System.out.print("Id used");
>
> Any help would be great.
>
>  
>
> public void addProduct(Product item)
>
>     {
>
>        
>
>                 Iterator it = stock.iterator();
>
>             while(it.hasNext()) {
>
>                 Product inStock = (Product) it.next();
>
>                 if(inStock.getID() != item.getID())
>
>                 {
>
>                     stock.add(item);
>
>                 }else{
>
>                     System.out.print("Id used");
>
>                 }
>
>         }
>
>     }
>
>  
>
>  
>
>  
>
>  
>
> Thanks
>
> Mike
>
> ------------------------------------------------------------------------
>
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