sorting - How to sort an arraylist of objects java?

Question

So I want an arraylist of objects in java.

I have object1.number and object2.number, object3.number, etc... but those objects have other properties besides number, such as name, distance, etc...

So if it was sorting a string in a array it would just be, put a string in a temporal and let the other string take its place... but in an araryList of objects, how can I do it?

Can I just move objects to that position of the array?

Thanks.

Answer 1

Implement your own comparer:

Arrays.sort(yourArray, new Comparator<YourClass>() {
        @Override
        public int compare(YourClass o1, YourClass o2) {
            //compare object properties
        }
});