I am trying to display an array list with multiple types, item by item. So I suppose this is a two part question. First, how do I convert this array list to a string in order to print it out (I am not sure how important this is). And second how do I move from item to item using an ActionEvent. 

My Array list has String, int, int, double. I have already figured out how to format the double to be a string, however how do I do this for the entire arraylist? The arraylist is already sorted in order to display it in alphabetical order. 

Below is my array list and the sorting

```
inventory.add(new inventoryItem("Pencil", 1111, 50, .25));
    inventory.add(new inventoryItem("Pen", 2222, 50, 1.00));
    inventory.add(new inventoryItem("Marker", 3333, 5, 2.00));
    inventory.add(new inventoryItem("Notebook", 4444, 10, 2.50));
    inventory.add(new officeSupplyItem("Mechanical Pencil", 1112, 25, .50));
    inventory.add(new officeSupplyItem("Lead Pencil", 1113, 25, .25));
    inventory.add(new officeSupplyItem("Blue Pen", 2221, 25, 1.00));
    inventory.add(new officeSupplyItem("Black Pen", 2223, 5, 1.00));
    inventory.add(new officeSupplyItem("Red Pen", 2224, 20, 1.00));
    inventory.add(new officeSupplyItem("Steno Notebook", 4441, 5, 2.50));
    inventory.add(new officeSupplyItem("Legal Pad", 4442, 5, 2.50));

    inventory = sortInventory(inventory);
    for (int i = 0; i < inventory.size(); i++) {
        inventory.get(i).output(outputText);
    }
    inventoryTotal(inventory, outputText);
    sortInventory(inventory);
}

static ArrayList sortInventory(ArrayList<inventoryItem> unsorted) {
    ArrayList<inventoryItem> sorted = new ArrayList<>(); //create new array list to sort
    inventoryItem alpha = null;
    int lowestIndex = -1;
    while (unsorted.size() > 0) { //while my unsorted array is less than 0 do the following
        for (int i = 0; i < unsorted.size(); i++) { //increment through 
            if (alpha == null) {
                alpha = unsorted.get(i); //get the next line in the inventoryItem array
                lowestIndex = i;
            } else if (unsorted.get(i).itemName.compareToIgnoreCase(alpha.itemName) < 0) { //compare items to determine which has a higher value
                alpha = unsorted.get(i);
                lowestIndex = i;
            }

        }
        sorted.add(alpha); //reset the index so it will loop until there are no more items in the unsorted array
        unsorted.remove(lowestIndex);
        alpha = null;
        lowestIndex = -1;
    }
    return sorted; //return the sorted arraylist

}

```

My buttons are set up like this

```
 nextButton.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
            outputText.append("\n this should move me forward in the list");

        }
    });
    previousButton.addActionListener(new ActionListener(){

        @Override
        public void actionPerformed(ActionEvent e) {
            outputText.append("\n this should move me backward in the list");

        }
    });

    exitButton.addActionListener(new ActionListener() { //setup listener for the exit button

        @Override
        public void actionPerformed(ActionEvent ae) {
            System.exit(0); //once the exit button is pressed, exit the program

        }

    });
    thePanel.add(nextButton); //move forward in the arraylist
    thePanel.add(previousButton); //move to previous item in the arraylist
    thePanel.add(exitButton); //add exit button to the panel

```

Any help would be greatly appreciated.