Question

I have a JList which is set to an ArrayList of days.

public void setCalender(ArrayList<Day> calender) {
    this.calender = calender;
    listDays.setListData(this.calender.toArray());
}

Each day contains a date/id and 3 periods:

public class Day {
    private int date;
    private Period p1;
    private Period p2;
    private Period p3;

    public Day(int date) {
        this.date = date;
        p1 = new Period(1);
        p2 = new Period(2);
        p3 = new Period(3);
    }
}

When the list renders, it shows each list item as “kkbs.Day@4d182e1e” for instance.
Is there any way to make a fixed string to show the user (i.e Day1), while still keeping the whole object in the list to retrieve?

Answer 1

Use a custom cell renderer for the list to format the view as required. Alternately you might define a toString() for the object, but the renderer is more versatile.