Return type from a Comparator

Question

What does the return value inside the Comparator actually mean?

For example :

class TreeSetDemo
{
    public static void main(String         


        

Answer 1

Depending on how you want to sort based on this comparator you need to place some logic in the comparator. Your comparator only returns 0 which means equal

class MyComparator implements Comparator {

    public int compare(Object o1, Object o2) {
        // TODO Auto-generated method stub
        return o1.compareTo(o2);
    }
}