using comparator for sorting in java

Question

I know how to use the comparable but having difficulty with the Comparator, please explain using an example

Answer 1

You've got two problems:

1) You're using Collections.sort (which takes a List<E>), but trying to sort an array. Use Arrays.sort instead.

2) You need to specify that you're implementing Comparator<Software>, not just the raw Comparator type.

So basically, this works:

Arrays.sort(aSoftware, new Comparator<Software>() {
    public int compare(Software s1, Software s2) {
        return s1.getSoftwareTitle().compareTo(s2.getSoftwareTitle());
    }
});