Bound mismatch for java Collections sorting

Question

Hi need Help regarding java collection sorting. It gives me this error:

Bound mismatch: The generic method sort(List) of type Collections is not app         


        

Answer 1

Just add this import import java.util.Comparator;

and remove this interface

interface Comparator
{
    int compare(WifiSSID obj1, WifiSSID obj2);
}

Your SortSSIDByid comparator class will now implement java.util.Comparator and that is what is required by the Collections.sort() method.