Sorting a list based on another list's values - Java

Question

One list with names:(unsorted) e.g [paul, foul, mark]

Another list with integers: e.g [5, 2, 6]

The values on the secon

Answer 1

Create a temporary mapping name->number, then sort names with custom comparator which uses the mapping:

Map m = new HashMap;
for(int i = 0; i < Names.size(); i++)
    m.put(Names.get(i), results.get(i));
Collections.sort(Names, new Comparator() {
    @Override
    public int compare(String s1, s2) { return m.get(s2) - m.get(s1); }
});

This solution will work even if some numbers are equal.