public class Inventory {
    private Item[] items;
    int i; //removed for loop, defined i in Constructor
    public Inventory(Item[] items) {
        super();
        this.items = items;
        i = 0;
    }

    public void updateQuality() {
        
            if (!items[i].getName().equals("Aged Brie")) {
                if (items[i].getQuality() > 0) {
                    if (!items[i].getName().equals("Sulfuras, Hand of Ragnaros")) {
                        items[i].setQuality(items[i].getQuality() - 1);
                    }
                }
            } else {
                if (items[i].getQuality() < 50) {
                    items[i].setQuality(items[i].getQuality() + 1);
                }
            }

            if (!items[i].getName().equals("Sulfuras, Hand of Ragnaros")) {
                items[i].setSellIn(items[i].getSellIn() - 1);
            }

            if (items[i].getSellIn() < 0) {
                if (!items[i].getName().equals("Aged Brie")) {
                  items[i].setQuality(items[i].getQuality() - 1);
                } else {
                    if (items[i].getQuality() < 50) {
                        items[i].setQuality(items[i].getQuality() + 1);
                    }
                }
            }
        }
}