CODEWITHSUNDEEP
javajlist
Oxidised
Oxidised

Reputation: 5

Java, Add together a value of elements in a JList

I have a jList that contains elements with 3 parameters. The elements are 

Item(double code, String name, double price)

I am trying to get the total price for all elements in the list and display it in a text box. Is this possible and if so, how can it be done?

Upvotes: 0

Views: 568

Answers (3)

MadProgrammer
MadProgrammer

Reputation: 347314

Get the ListModel from the JList

ListModel model = instanceOfJList.getModel();

Iterate over the model elements...

double sum = 0;
for (int index = 0; index < model.size(); index++) {
    Item item = (Item)model.getElementAt(index);
    sum += item.getPrice();
}
// Display sum somewhere on the screen...

Upvotes: 1

Theo
Theo

Reputation: 1193

Does your item class has getters for the price?

If yes you can iterate over your list and each time get the price and add it to a variable; call it totalSum.

At the end you should be able to display your totalSum in a text box.

Upvotes: 0

Florian Schaetz
Florian Schaetz

Reputation: 10662

Well, you will probably have to iterate over the list and call something like getPrice() on every element to create the sum.

Upvotes: 0

Related Questions