Sorted Objects

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class Main {

    public static void main(String[] args) {
        SortedObjects<String> so = new SortedObjects<>();
        so.add("5");
        so.add("Hello world!");
        so.add("Para bailar la bamba");
        System.out.println(so.read(0));
    }
}

class SortedObjects<T extends Comparable<T>> {

    private List<T> list = new ArrayList<>();

    public void add(T object) {
        list.add(object);
        Collections.sort(list);
    }

    public T read(int index) {
        return list.get(index);
    }

    public int size() {
        return list.size();
    }
}