Using the contains method I'm checking to see if an object is in an arraylist, if its not then I add it else I want to increment the count.

        if (!data.contains(d)) {
            data.add(d);
        } else {
            for (int j = 0; j < data.size(); j++) {
                if (data.get(j).equals(d)) {
                    data.get(j).incrementCount();
                }
            }
        }

I'm looking at the code I've written and it looks wasteful, having to loop through the arraylist multiple times, I was thinking about using booleans but was wondering if there is any other way.

Using the contains method I'm checking to see if an object is in an arraylist, if it's not then I add it else I want to increment the count.

        if (!data.contains(d)) {
            data.add(d);
        } else {
            for (int j = 0; j < data.size(); j++) {
                if (data.get(j).equals(d)) {
                    data.get(j).incrementCount();
                }
            }
        }

I'm looking at the code I've written and it looks wasteful, having to loop through the arraylist multiple times, I was thinking about using booleans but was wondering if there is any other way.