When compartor return 1, swap happen and for -1 swap not happen.
What happen when it return 0?
Based on the collection we use, its action change
If we use List, its not changing the order and if its a Set it
eliminates the record.
public class Test
{
public static void
main(String[] args) throws Exception {
Comparator
c = new Comparator<String>() {
@Override
public int
compare(String first, String second) {
return 0;
}
};
Set<String>
comp = new TreeSet<String>(c);
comp.add("A");
comp.add("C");
comp.add("B");
System.out.println("Comp
: " + comp);
}
}
Result
Comp : [A]
